Podcast
Questions and Answers
What is tuberculosis?
What is tuberculosis?
- A type of bacteria found in water and soil
- A non-infectious disease that causes lung damage
- Infectious disease primarily affecting lungs and other organs (correct)
- A fungal infection that affects the respiratory system
What does MAC stand for?
What does MAC stand for?
- Mycobacterium avium Complete
- Mycobacterium avium Control
- Mycobacterium avium Complex (correct)
- Mycobacterium avium Cure
Latent tuberculosis infection is a symptomatic condition.
Latent tuberculosis infection is a symptomatic condition.
False (B)
Which of these is a sign of active tuberculosis?
Which of these is a sign of active tuberculosis?
What is the main way tuberculosis is transmitted?
What is the main way tuberculosis is transmitted?
Multidrug-resistant tuberculosis (MDR-TB) is resistant to most effective anti-TB medications.
Multidrug-resistant tuberculosis (MDR-TB) is resistant to most effective anti-TB medications.
What is the primary goal of drug therapy for tuberculosis?
What is the primary goal of drug therapy for tuberculosis?
Sputum cultures are used to test for TB bacteria in urine samples.
Sputum cultures are used to test for TB bacteria in urine samples.
What is one of the key factors influencing the success of TB treatment?
What is one of the key factors influencing the success of TB treatment?
Which of these is a risk factor for developing tuberculosis?
Which of these is a risk factor for developing tuberculosis?
HIV infection increases the risk of developing active tuberculosis.
HIV infection increases the risk of developing active tuberculosis.
Which of these is a first-line agent used to treat tuberculosis?
Which of these is a first-line agent used to treat tuberculosis?
Second-line medications are used when first-line drugs are ineffective in treating TB.
Second-line medications are used when first-line drugs are ineffective in treating TB.
What is one important strategy for TB control?
What is one important strategy for TB control?
What is Erythromycin?
What is Erythromycin?
What does 'Bacteriostatic' mean?
What does 'Bacteriostatic' mean?
What does 'Bactericidal' mean?
What does 'Bactericidal' mean?
Macrolides are effective against Gram(+) cocci bacteria.
Macrolides are effective against Gram(+) cocci bacteria.
What is the class of antibiotics that include erythromycin?
What is the class of antibiotics that include erythromycin?
What does 'Pharmacokinetics' refer to?
What does 'Pharmacokinetics' refer to?
Which of these conditions can affect drug metabolism?
Which of these conditions can affect drug metabolism?
What are 'Adverse effects'?
What are 'Adverse effects'?
What are 'Contraindications'?
What are 'Contraindications'?
What is Fidaxomicin?
What is Fidaxomicin?
What is Tedizolid?
What is Tedizolid?
What is Telavancin?
What is Telavancin?
What is Tigecycline?
What is Tigecycline?
What is Vancomycin?
What is Vancomycin?
What are Culture and susceptibility reports?
What are Culture and susceptibility reports?
Which of the following best describes 'Narrow spectra of activity'?
Which of the following best describes 'Narrow spectra of activity'?
What is 'Patient teaching'?
What is 'Patient teaching'?
What type of infections do aminoglycosides treat?
What type of infections do aminoglycosides treat?
What is the prototype aminoglycoside antibiotic?
What is the prototype aminoglycoside antibiotic?
Fluoroquinolones are only effective against gram-negative organisms.
Fluoroquinolones are only effective against gram-negative organisms.
What is the prototype fluoroquinolone antibiotic?
What is the prototype fluoroquinolone antibiotic?
What type of agents are aminoglycosides and fluoroquinolones?
What type of agents are aminoglycosides and fluoroquinolones?
Aminoglycosides are well absorbed orally.
Aminoglycosides are well absorbed orally.
What type of administration is used for aminoglycosides?
What type of administration is used for aminoglycosides?
What is a potential side effect of high aminoglycoside concentrations?
What is a potential side effect of high aminoglycoside concentrations?
What is another potential side effect of aminoglycosides?
What is another potential side effect of aminoglycosides?
Aminoglycosides are metabolized in the liver before excretion.
Aminoglycosides are metabolized in the liver before excretion.
How do aminoglycosides exert their mechanism of action?
How do aminoglycosides exert their mechanism of action?
What are some examples of serious infections treated with aminoglycosides?
What are some examples of serious infections treated with aminoglycosides?
What is the chemical structure essential for antibacterial activity in beta-lactam antibacterial agents?
What is the chemical structure essential for antibacterial activity in beta-lactam antibacterial agents?
Beta-lactam antibiotics are effective against all types of infections.
Beta-lactam antibiotics are effective against all types of infections.
Which of the following is the first developed antibiotic group?
Which of the following is the first developed antibiotic group?
What is the primary mechanism of action for beta-lactam antibacterial agents?
What is the primary mechanism of action for beta-lactam antibacterial agents?
Cephalosporins are derived from fungi.
Cephalosporins are derived from fungi.
What are beta-lactamase inhibitors used for?
What are beta-lactamase inhibitors used for?
Which of the following are examples of extended-spectrum penicillins?
Which of the following are examples of extended-spectrum penicillins?
What is the primary clinical indication for beta-lactam antibacterial agents?
What is the primary clinical indication for beta-lactam antibacterial agents?
Allergic reactions to penicillins are a contraindication for cephalosporin use due to cross-sensitivity.
Allergic reactions to penicillins are a contraindication for cephalosporin use due to cross-sensitivity.
Beta-lactam antibiotics are bacteriostatic, meaning they inhibit bacterial growth.
Beta-lactam antibiotics are bacteriostatic, meaning they inhibit bacterial growth.
What does rapid excretion of drugs, such as many beta-lactam antibiotics, mean?
What does rapid excretion of drugs, such as many beta-lactam antibiotics, mean?
What is the primary concern with the increasing resistance incidence of beta-lactam antibiotics?
What is the primary concern with the increasing resistance incidence of beta-lactam antibiotics?
Surgical prophylaxis is a preventive approach using antibiotics during surgery to reduce the risk of infection.
Surgical prophylaxis is a preventive approach using antibiotics during surgery to reduce the risk of infection.
What is septicemia?
What is septicemia?
What groups are considered special populations when administering antibiotics?
What groups are considered special populations when administering antibiotics?
What are the key factors considered when selecting a drug for a specific infection?
What are the key factors considered when selecting a drug for a specific infection?
What is pain?
What is pain?
What are opioid analgesics?
What are opioid analgesics?
What are some causes of pain?
What are some causes of pain?
What are nociceptors?
What are nociceptors?
How do pain signals travel to the brain?
How do pain signals travel to the brain?
What is endogenous analgesia?
What is endogenous analgesia?
What is the gold standard of pain assessment measurement?
What is the gold standard of pain assessment measurement?
How do opioid analgesics work?
How do opioid analgesics work?
What is the prototype opioid analgesic?
What is the prototype opioid analgesic?
What is patient-controlled analgesia (PCA)?
What is patient-controlled analgesia (PCA)?
What is the duration of action for morphine sulfate?
What is the duration of action for morphine sulfate?
What are the main administration routes for morphine sulfate?
What are the main administration routes for morphine sulfate?
What is tolerance in relation to opioid analgesics?
What is tolerance in relation to opioid analgesics?
What are the main subgroups of opioids?
What are the main subgroups of opioids?
Which of the following are examples of measurement tools for pain?
Which of the following are examples of measurement tools for pain?
What do opioid agonists do?
What do opioid agonists do?
Which of the following are major types of opioid receptors?
Which of the following are major types of opioid receptors?
Which of the following are effects of opioid agonists?
Which of the following are effects of opioid agonists?
What are opioid agonists used for?
What are opioid agonists used for?
For which conditions are opioid agonists used?
For which conditions are opioid agonists used?
What are the indications for opioid use?
What are the indications for opioid use?
Labor and delivery is an indication for opioid use.
Labor and delivery is an indication for opioid use.
Treatment of acute pulmonary edema is an indication for opioid use.
Treatment of acute pulmonary edema is an indication for opioid use.
Treatment of GI disorders is NOT an indication for opioid use.
Treatment of GI disorders is NOT an indication for opioid use.
Treatment of severe, unproductive cough is an indication for opioid use.
Treatment of severe, unproductive cough is an indication for opioid use.
Which of the following are contraindications for opioid use?
Which of the following are contraindications for opioid use?
Which of the following are cautions for opioid use?
Which of the following are cautions for opioid use?
Why are most opioid analgesics Schedule II drugs?
Why are most opioid analgesics Schedule II drugs?
What is butorphanol?
What is butorphanol?
What are opioid agonists/antagonists used for?
What are opioid agonists/antagonists used for?
Which of the following are adverse effects of opioid agonists/antagonists?
Which of the following are adverse effects of opioid agonists/antagonists?
What is the ceiling effect in relation to opioid agonists/antagonists?
What is the ceiling effect in relation to opioid agonists/antagonists?
What is naloxone?
What is naloxone?
What are the therapeutic effects of naloxone?
What are the therapeutic effects of naloxone?
How does naloxone work?
How does naloxone work?
Which of the following are adverse effects of naloxone?
Which of the following are adverse effects of naloxone?
Which of the following are contraindications for naloxone?
Which of the following are contraindications for naloxone?
Which of the following are special populations to consider for naloxone use?
Which of the following are special populations to consider for naloxone use?
What is the primary function of diuretics?
What is the primary function of diuretics?
Which of the following conditions are considered edematous conditions?
Which of the following conditions are considered edematous conditions?
The nephron is the functional unit of the kidney.
The nephron is the functional unit of the kidney.
What are the three main processes involved in urine formation?
What are the three main processes involved in urine formation?
What is the primary site of action for loop diuretics?
What is the primary site of action for loop diuretics?
What is the primary site of action for thiazide diuretics?
What is the primary site of action for thiazide diuretics?
Potassium-sparing diuretics like spironolactone conserve potassium.
Potassium-sparing diuretics like spironolactone conserve potassium.
What is the mechanism of action for osmotic diuretics like mannitol?
What is the mechanism of action for osmotic diuretics like mannitol?
What is the daily minimum urine output recommended for a healthy individual?
What is the daily minimum urine output recommended for a healthy individual?
Hypokalemia can lead to cardiotoxicity.
Hypokalemia can lead to cardiotoxicity.
What are two ways to prevent hypokalemia when using diuretics?
What are two ways to prevent hypokalemia when using diuretics?
Hyperkalemia is an excess of potassium levels.
Hyperkalemia is an excess of potassium levels.
How can hyperkalemia be managed?
How can hyperkalemia be managed?
What is the goal of fluid mobilization in diuretic therapy?
What is the goal of fluid mobilization in diuretic therapy?
What factors should be considered when selecting a diuretic?
What factors should be considered when selecting a diuretic?
What are combination products in diuretic therapy?
What are combination products in diuretic therapy?
Define edema.
Define edema.
What are some examples of special populations that require careful diuretic use?
What are some examples of special populations that require careful diuretic use?
What are renal function alterations?
What are renal function alterations?
What are corticosteroids?
What are corticosteroids?
What is homeostasis?
What is homeostasis?
What are exogenous corticosteroids?
What are exogenous corticosteroids?
What are glucocorticoids?
What are glucocorticoids?
What are mineralocorticoids?
What are mineralocorticoids?
What is the main mineralocorticoid?
What is the main mineralocorticoid?
What are adrenal sex hormones?
What are adrenal sex hormones?
What are androgens?
What are androgens?
How is corticosteroid secretion controlled?
How is corticosteroid secretion controlled?
What is a negative feedback system?
What is a negative feedback system?
What is therapeutic corticosteroid use?
What is therapeutic corticosteroid use?
What are anti-inflammatory effects of corticosteroids?
What are anti-inflammatory effects of corticosteroids?
What are immunosuppressive effects of corticosteroids?
What are immunosuppressive effects of corticosteroids?
What is palliative therapy?
What is palliative therapy?
What are drug selection factors for using corticosteroids?
What are drug selection factors for using corticosteroids?
What are dosing guidelines for corticosteroids?
What are dosing guidelines for corticosteroids?
What is local administration of corticosteroids?
What is local administration of corticosteroids?
What is alternate-day therapy for corticosteroids?
What is alternate-day therapy for corticosteroids?
What is chronic condition management with corticosteroids?
What is chronic condition management with corticosteroids?
What are contraindications for corticosteroid use?
What are contraindications for corticosteroid use?
Why are systemic fungal infections a contraindication for corticosteroid use?
Why are systemic fungal infections a contraindication for corticosteroid use?
Why is the frequency of corticosteroid administration important?
Why is the frequency of corticosteroid administration important?
What is a major risk of long-term high-dose corticosteroid therapy?
What is a major risk of long-term high-dose corticosteroid therapy?
What are special populations to consider for corticosteroid use?
What are special populations to consider for corticosteroid use?
What are corticosteroid receptors?
What are corticosteroid receptors?
What are physiologic effects of corticosteroids?
What are physiologic effects of corticosteroids?
Corticosteroids are only used to treat inflammatory conditions.
Corticosteroids are only used to treat inflammatory conditions.
Local administration of corticosteroids is preferred because it minimizes systemic effects.
Local administration of corticosteroids is preferred because it minimizes systemic effects.
What is the main function of aldosterone?
What is the main function of aldosterone?
Which of the following is NOT a risk associated with long-term high-dose corticosteroid therapy?
Which of the following is NOT a risk associated with long-term high-dose corticosteroid therapy?
Which of the following is an example of a local corticosteroid administration method?
Which of the following is an example of a local corticosteroid administration method?
Flashcards
Tuberculosis
Tuberculosis
Infectious disease primarily affecting lungs and other organs.
Mycobacterium avium Complex (MAC)
Mycobacterium avium Complex (MAC)
Pathogenic mycobacteria found in water and soil.
Latent Tuberculosis Infection (LTBI)
Latent Tuberculosis Infection (LTBI)
Inactive TB infection without symptoms or disease.
Active Tuberculosis
Active Tuberculosis
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Drug-Resistant Tuberculosis
Drug-Resistant Tuberculosis
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Multidrug-Resistant Tuberculosis (MDR-TB)
Multidrug-Resistant Tuberculosis (MDR-TB)
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Extensively Drug-Resistant TB (XDR-TB)
Extensively Drug-Resistant TB (XDR-TB)
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Transmission
Transmission
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Primary Infection
Primary Infection
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Public Health Concern
Public Health Concern
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Directly Observed Therapy (DOT)
Directly Observed Therapy (DOT)
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Sputum Cultures
Sputum Cultures
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Signs of Active TB
Signs of Active TB
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Drug Therapy Goals
Drug Therapy Goals
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Adherence to Therapy
Adherence to Therapy
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Immunosuppression
Immunosuppression
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CDC Recommendations
CDC Recommendations
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Nurses' Role
Nurses' Role
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Treatment Duration
Treatment Duration
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Drug Therapy Monitoring
Drug Therapy Monitoring
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Risk Factors for TB
Risk Factors for TB
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HIV and TB
HIV and TB
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Diagnostic Challenges
Diagnostic Challenges
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First-Line Agents
First-Line Agents
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Second-Line Medications
Second-Line Medications
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Global TB Statistics
Global TB Statistics
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TB Control Strategies
TB Control Strategies
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Pharmacokinetics
Pharmacokinetics
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Macrolide Antibacterials
Macrolide Antibacterials
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Erythromycin
Erythromycin
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Bacteriostatic
Bacteriostatic
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Bactericidal
Bactericidal
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Gram(+) cocci
Gram(+) cocci
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Hepatic impairment
Hepatic impairment
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Critical illness
Critical illness
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Adverse effects
Adverse effects
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Contraindications
Contraindications
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Azithromycin
Azithromycin
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Clarithromycin
Clarithromycin
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Fidaxomicin
Fidaxomicin
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Rifaximin
Rifaximin
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Tedizolid
Tedizolid
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Telavancin
Telavancin
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Tigecycline
Tigecycline
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Vancomycin
Vancomycin
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Culture and susceptibility reports
Culture and susceptibility reports
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Narrow spectra of activity
Narrow spectra of activity
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Patient teaching
Patient teaching
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Aminoglycosides
Aminoglycosides
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Gentamicin
Gentamicin
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Fluoroquinolones
Fluoroquinolones
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Ciprofloxacin
Ciprofloxacin
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Bactericidal agents
Bactericidal agents
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Poor GI absorption
Poor GI absorption
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Parenteral administration
Parenteral administration
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Nephrotoxicity
Nephrotoxicity
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Ototoxicity
Ototoxicity
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Excretion of aminoglycosides
Excretion of aminoglycosides
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Mechanism of action
Mechanism of action
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Indications for use
Indications for use
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Fluoroquinolone metabolism
Fluoroquinolone metabolism
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Bacterial DNA enzyme synthesis
Bacterial DNA enzyme synthesis
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Indications for fluoroquinolones
Indications for fluoroquinolones
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Contraindications for fluoroquinolones
Contraindications for fluoroquinolones
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Drug selection
Drug selection
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Aminoglycoside dosing
Aminoglycoside dosing
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Adverse effects monitoring
Adverse effects monitoring
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Hydration in therapy
Hydration in therapy
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Special populations
Special populations
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Reducing toxicity guidelines
Reducing toxicity guidelines
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Beta-Lactam Ring
Beta-Lactam Ring
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Antibacterial Activity
Antibacterial Activity
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Penicillins
Penicillins
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Cephalosporins
Cephalosporins
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Carbapenems
Carbapenems
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Monobactams
Monobactams
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Beta-Lactamase Inhibitors
Beta-Lactamase Inhibitors
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Cross-Allergenicity
Cross-Allergenicity
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Extended-Spectrum Penicillins
Extended-Spectrum Penicillins
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Clinical Indications
Clinical Indications
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Contraindications for Penicillins
Contraindications for Penicillins
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Therapeutic Concentrations
Therapeutic Concentrations
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Intraocular Concentration
Intraocular Concentration
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Rapid Excretion
Rapid Excretion
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Resistance Incidence
Resistance Incidence
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Surgical Prophylaxis
Surgical Prophylaxis
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Septicemia
Septicemia
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Home Care
Home Care
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Drug Selection Principles
Drug Selection Principles
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Pain
Pain
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Opioid analgesics
Opioid analgesics
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Etiology of Pain
Etiology of Pain
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Pathophysiology of Pain #1
Pathophysiology of Pain #1
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Nociceptors
Nociceptors
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Pathophysiology of Pain #2
Pathophysiology of Pain #2
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Endogenous Analgesia
Endogenous Analgesia
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SOCRATES
SOCRATES
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Preventive analgesia
Preventive analgesia
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Morphine sulfate
Morphine sulfate
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Patient-controlled analgesia (PCA)
Patient-controlled analgesia (PCA)
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Duration of action of Morphine
Duration of action of Morphine
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Administration routes of Morphine
Administration routes of Morphine
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Tolerance
Tolerance
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Subgroups of opioids
Subgroups of opioids
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Measurement tools for pain
Measurement tools for pain
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Opioid Agonists
Opioid Agonists
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Major types of opioid receptors
Major types of opioid receptors
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Effects of Opioid Agonists
Effects of Opioid Agonists
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Use of Opioid Agonists
Use of Opioid Agonists
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Conditions for Opioid Use
Conditions for Opioid Use
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Indications for Opioid Use
Indications for Opioid Use
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Labor and delivery
Labor and delivery
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Treatment of acute pulmonary edema
Treatment of acute pulmonary edema
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Treatment of GI disorders
Treatment of GI disorders
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Treatment of severe, unproductive cough
Treatment of severe, unproductive cough
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Contraindications for Opioid Use
Contraindications for Opioid Use
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Cautions for Opioid Use
Cautions for Opioid Use
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Schedule II drugs
Schedule II drugs
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What are diuretics?
What are diuretics?
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What are edematous conditions?
What are edematous conditions?
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What are nonedematous conditions?
What are nonedematous conditions?
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What is a nephron?
What is a nephron?
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What is glomerular filtration?
What is glomerular filtration?
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What is tubular reabsorption?
What is tubular reabsorption?
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What is tubular secretion?
What is tubular secretion?
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What are loop diuretics?
What are loop diuretics?
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What are thiazides?
What are thiazides?
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What are potassium-sparing diuretics?
What are potassium-sparing diuretics?
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What are osmotic diuretics?
What are osmotic diuretics?
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What is the daily minimum urine output?
What is the daily minimum urine output?
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What is cardiotoxicity of hypokalemia?
What is cardiotoxicity of hypokalemia?
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How can you prevent hypokalemia?
How can you prevent hypokalemia?
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What is hyperkalemia?
What is hyperkalemia?
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How can you manage hyperkalemia?
How can you manage hyperkalemia?
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What is fluid mobilization?
What is fluid mobilization?
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What is drug selection in diuretic therapy?
What is drug selection in diuretic therapy?
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What are combination products in diuretic therapy?
What are combination products in diuretic therapy?
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What is edema?
What is edema?
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What are special populations in diuretic therapy?
What are special populations in diuretic therapy?
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What are renal function alterations?
What are renal function alterations?
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What is diuresis?
What is diuresis?
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What are hypokalemic diuretics?
What are hypokalemic diuretics?
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What are uricosuric diuretics?
What are uricosuric diuretics?
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What is diuretic therapy?
What is diuretic therapy?
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What is a diuretic?
What is a diuretic?
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What is prophylactic diuretic therapy?
What is prophylactic diuretic therapy?
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Corticosteroids
Corticosteroids
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Homeostasis
Homeostasis
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Exogenous corticosteroids
Exogenous corticosteroids
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Glucocorticoids
Glucocorticoids
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Mineralocorticoids
Mineralocorticoids
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Aldosterone
Aldosterone
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Adrenal sex hormones
Adrenal sex hormones
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Androgens
Androgens
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Estrogens
Estrogens
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Corticosteroid secretion
Corticosteroid secretion
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Negative feedback system
Negative feedback system
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Therapeutic corticosteroid use
Therapeutic corticosteroid use
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Anti-inflammatory effects
Anti-inflammatory effects
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Immunosuppressive effects
Immunosuppressive effects
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Palliative therapy
Palliative therapy
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Drug selection factors
Drug selection factors
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Dosing guidelines
Dosing guidelines
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Local administration
Local administration
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Alternate-day therapy
Alternate-day therapy
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Acute administration
Acute administration
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Chronic condition management
Chronic condition management
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Systemic fungal infections
Systemic fungal infections
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Frequency of administration
Frequency of administration
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Adrenocortical function loss
Adrenocortical function loss
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Corticosteroid receptors
Corticosteroid receptors
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Physiologic effects
Physiologic effects
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Study Notes
Tuberculosis (TB) Overview
- TB is an infectious disease affecting lungs and other organs.
- Latent TB infection (LTBI) is an inactive form without symptoms.
- Active TB is symptomatic and requires treatment.
- Drug-resistant TB is a serious complication, including MDR-TB (multidrug-resistant) and XDR-TB (extensively drug-resistant).
- TB transmission occurs through inhalation of droplets.
Mycobacterium avium Complex (MAC)
- MAC is a pathogenic mycobacteria found in water and soil.
Drug Resistance in Tuberculosis
- MDR-TB is resistant to most first-line anti-TB drugs.
- XDR-TB is resistant to both first-line and many second-line anti-TB drugs.
- Drug resistance poses a major public health risk.
- Culture and susceptibility reports are used to identify bacterial resistance to drugs.
Aminoglycoside and Fluoroquinolone Therapy
- Aminoglycosides treat serious gram-negative infections; poorly absorbed orally.
- Gentamicin is a prototype aminoglycoside antibiotic.
- Fluoroquinolones are synthetic drugs effective against gram-negative and gram-positive organisms.
- Ciprofloxacin is a prototype fluoroquinolone antibiotic.
- Bactericidal agents kill bacteria; bacteriostatic agents only inhibit growth.
- Aminoglycosides have poor gastrointestinal absorption.
- Parenteral administration (injection) provides wider distribution.
- Nephrotoxicity (kidney damage) and ototoxicity (hearing loss) are potential aminoglycoside side effects.
- Aminoglycosides are excreted unchanged in the urine; not metabolized.
- Aminoglycosides inhibit bacterial protein synthesis by penetrating cell walls.
- Indications include serious infections like septicemia and meningitis.
- Fluoroquinolone metabolism occurs mainly in the kidneys and liver.
- Fluoroquinolones interfere with bacterial DNA enzyme synthesis.
- Fluoroquinolones treat respiratory, genitourinary, and gastrointestinal infections.
- Contraindications include hypersensitivity and use in those under 18.
- Drug selection is based on the causative organism.
- Aminoglycoside dosing is monitored by serum concentration (peak and trough).
- Adverse effect monitoring is crucial for early detection.
- Hydration reduces aminoglycoside toxicity.
- Patient education is key for understanding medication effects and adverse reactions.
- Special populations (children, seniors, those with kidney issues) require careful consideration.
- Limiting aminoglycoside use to 10 days (unless necessary) can reduce toxicity.
Beta-Lactam Antibacterial Agents
- Beta-lactam ring is crucial for antibacterial action.
- Antibacterial activity is the measure of effectiveness against bacterial infections.
- Penicillins, the first antibiotics, work primarily on gram-positive bacteria.
- Cephalosporins, derived from fungi, are broader-spectrum antibiotics than penicillins.
- Carbapenems are useful against resistant gram-negative bacteria.
- Monobactams target gram-negative bacteria with minimal side effects.
- Their mechanism of action involves inhibiting bacterial cell wall synthesis.
- Beta-lactamase inhibitors protect penicillins from enzymatic destruction.
- Cross-allergenicity is the risk of allergic reactions to related antibiotics.
- Extended-spectrum penicillins effectively treat gram-negative bacterial infections orally.
- Beta-lactam antibiotics have various clinical indications, including surgical prophylaxis and treating various infections.
- Contraindications include allergies and cross-sensitivity with cephalosporins.
- Beta-lactams are bactericidal, causing bacterial death.
- Effective drug levels (therapeutic concentrations) are crucial for clinical success.
- Intraocular concentrations of some beta-lactams may be low.
- These antibiotics are rapidly excreted via the kidneys.
- Resistance to beta-lactam antibiotics is increasing.
- Surgical prophylaxis involves using antibiotics before surgery for prevention.
- Septicemia, a bloodstream infection, demands aggressive beta-lactam treatment.
- Beta-lactam use requires careful consideration of special populations (children, elderly, and critically ill).
- Home care practices are crucial for antibiotic administration outside hospitals.
- Drug selection depends on infection severity and the causative organism.
Treatment and Management
- Treatment goals include curing the infection, preventing resistance, and minimizing transmission.
- Directly Observed Therapy (DOT) is critical, with healthcare providers observing medication intake.
- Sputum cultures detect TB bacteria in samples.
- Active TB signs include persistent cough, fever, weight loss, and night sweats.
- Active TB treatment typically lasts a minimum of 6 months.
- Adherence is essential for successful treatment.
- Immunosuppression increases TB infection risk.
- CDC recommendations guide TB control and treatment.
- Patient teaching is crucial for medication use and effects.
Patient Care and Public Health
- Nurses play a critical role in patient education, medication administration, and contact tracing.
- Risk factors include immigration, immunosuppression, and crowded living conditions.
- HIV significantly increases active TB risk.
- Timely diagnosis is crucial to prevent drug resistance.
- First-line agents are the initial TB treatment medications.
- Second-line medications are used when first-line drugs fail.
- Global TB statistics show high morbidity and mortality.
- TB control strategies include educating and supporting patient adherence.
- Regular monitoring of drug therapy is essential to identify and manage adverse effects and ensure patient compliance.
- Anti-infective agents (macrolides, oxazolidinones, glycopeptides, glycylcyclines, and miscellaneous agents) include specific examples.
- Some antibiotics are bacteriostatic (inhibit bacterial growth), while others are bactericidal (kill bacteria at a certain concentration).
- Pharmacokinetic factors (absorption, distribution, metabolism, excretion) affect drug efficacy.
- Hepatic impairment and critical illness can affect drug efficacy and metabolism.
- Adverse effects and contraindications of the drugs need to be considered.
- Antibiotic use varies based on targets. Some, like erythromycin, have a broad spectrum; others have a narrow spectrum, targeting specific bacteria types, like erythromycin against Gram (+) cocci.
Corticosteroids
- Corticosteroids are hormones from the adrenal cortex affecting various body organs.
- Homeostasis is the balance maintained by normal corticosteroid secretion.
- Exogenous corticosteroids are medications derived from corticosteroids.
- Glucocorticoids are corticosteroids involved in metabolism and inflammation.
- Mineralocorticoids control fluid and electrolyte balance.
- Aldosterone is the primary mineralocorticoid regulating salt and water balance.
- Adrenal sex hormones affect secondary sexual characteristics.
- Androgens are male hormones increasing muscle mass and strength.
- Estrogens are female hormones with limited physiological effects.
- Corticosteroid secretion is controlled by the hypothalamus and pituitary gland.
- A negative feedback system regulates hormone secretion based on body needs.
- Therapeutic corticosteroid use involves large doses for new physiological effects.
- Anti-inflammatory effects reduce inflammation through glucocorticoids.
- Immunosuppressive effects suppress the immune response by corticosteroids.
- Palliative therapy relieves symptoms without curing the underlying condition.
- Drug selection factors consider the purpose, characteristics, and patient needs.
- Dosing guidelines emphasize the smallest effective dose for the shortest duration.
- Local administration minimizes systemic effects to target delivery.
- Alternate-day therapy reduces side effects by using double doses every other day.
- Acute administration uses large doses for short-term treatment.
- Chronic condition management involves tapered doses for ongoing treatment.
- Contraindications are conditions where corticosteroids should be avoided.
- Systemic fungal infections are a contraindication due to infection risk.
- Frequency of administration is important for minimizing adverse effects.
- Adrenocortical function loss is a potential major risk with long-term high-dose therapy.
- Special populations including children and older adults need tailored considerations.
- Corticosteroid receptors bind to target tissues impacting gene transcription.
- Physiologic effects are maintained by small doses of corticosteroids to maintain normal functions.
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