Pharmacology Quiz: Cephalosporins & Addison’s Disease
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Questions and Answers

Which of the following conditions can be treated with 2nd generation cephalosporins?

  • Hyperlipidemia
  • Chronic kidney disease
  • Dermatitis
  • Lower respiratory tract infections (correct)
  • Cefaclor is more potent against gram-negative bacteria than cefuroxime.

    False

    What is the brand name for cysteine hydrochloride?

    Zinacef

    Cefuroxime is effective against _________ (specific bacteria) such as Staphylococcus and Streptococcus.

    <p>gram-positive cocci</p> Signup and view all the answers

    Match the drug with its route of administration:

    <p>Cefuroxime = Oral, IV, IM Cefaclor = Oral Ceftin = Oral, IV, IM Ceclor = Oral</p> Signup and view all the answers

    What is a primary cause of Addison’s disease?

    <p>Autoimmune attack</p> Signup and view all the answers

    Addison’s disease primarily affects individuals over the age of 50.

    <p>False</p> Signup and view all the answers

    What hormone does the pituitary gland fail to produce in secondary adrenal insufficiency?

    <p>ACTH</p> Signup and view all the answers

    People with Addison’s disease may experience extreme _____ and weight loss.

    <p>fatigue</p> Signup and view all the answers

    Match the symptoms with their descriptions:

    <p>Extreme fatigue = A feeling of incessant tiredness Low blood pressure = A state of insufficient blood flow Salt craving = A desire for salty foods Hypoglycemia = Abnormally low blood sugar levels</p> Signup and view all the answers

    Which of the following is NOT a risk factor for Addison’s disease?

    <p>Higher cholesterol</p> Signup and view all the answers

    Corticosteroid medications have side effects such as weight gain and hypertension.

    <p>True</p> Signup and view all the answers

    Name one type of adrenal insufficiency besides primary adrenal insufficiency.

    <p>Secondary Adrenal Insufficiency or Tertiary Adrenal Insufficiency</p> Signup and view all the answers

    Which antibiotic is effective against both Gram-negative and Gram-positive bacteria, particularly Pseudomonas aeruginosa?

    <p>Cefoperazone</p> Signup and view all the answers

    Cefixime is primarily used for treating Gram-positive infections.

    <p>False</p> Signup and view all the answers

    What type of infections is Cefdinir primarily used for?

    <p>Bronchitis, sinusitis, pneumonia</p> Signup and view all the answers

    Ceftibuten is effective for treating acute bacterial exacerbations of __________.

    <p>chronic bronchitis</p> Signup and view all the answers

    Match the following antibiotics with their primary bacterial targets:

    <p>Cefdinir = M.catarrhalis, S.pneumoniae Cefixime = E.coli, H.influenzae Cefpodoxime = S.pneumoniae, S.pyogenes Ceftibuten = Klebsiella, Proteus</p> Signup and view all the answers

    Which of the following antibiotics can treat uncomplicated gonorrhea?

    <p>Cefixime</p> Signup and view all the answers

    Cefoperazone is administered orally.

    <p>False</p> Signup and view all the answers

    Which of the following adverse reactions is potentially fatal?

    <p>C. difficile-associated diarrhea</p> Signup and view all the answers

    Name one Gram-negative bacterium that Cefpodoxime targets.

    <p>E.coli</p> Signup and view all the answers

    Vancomycin is available in both oral and intravenous formulations.

    <p>True</p> Signup and view all the answers

    What is the mechanism of action of glycopeptide antibiotics?

    <p>Inhibiting peptidoglycan synthesis.</p> Signup and view all the answers

    Vancomycin may cause _____ at the injection site due to its irritating properties.

    <p>phlebitis</p> Signup and view all the answers

    Match the following glycopeptide antibiotics with their formulations or indications:

    <p>Vancomycin = Infections due to Gram-positive bacteria Telavancin = Complicated skin and soft tissue infections Oral Vancomycin = C. difficile colitis Vials of Vancomycin = 500 mg, 1 g, 5 g, 10 g</p> Signup and view all the answers

    Which pregnancy category does Vancomycin fall under?

    <p>B</p> Signup and view all the answers

    Telavancin should be avoided in pregnant women due to teratogenic effects.

    <p>True</p> Signup and view all the answers

    What are common reactions associated with the use of glycopeptide antibiotics?

    <p>Chills, fever, and ototoxicity.</p> Signup and view all the answers

    Which of the following is NOT a feature of 5th generation cephalosporins?

    <p>Limited to Gram-positive bacteria</p> Signup and view all the answers

    Monobactams have activity against both anaerobic and Gram-positive bacteria.

    <p>False</p> Signup and view all the answers

    What is the brand name for Ceftaroline?

    <p>Teflaro</p> Signup and view all the answers

    Ceftobiprole is effective against ___________ positive bacteria including MRSA.

    <p>Gram</p> Signup and view all the answers

    Which of the following is a primary indication for Aztreonam?

    <p>Infections resistant to beta lactamases</p> Signup and view all the answers

    Match the following drugs with their brand names:

    <p>Ceftaroline = Teflaro Ceftobiprole = Zeftera Aztreonam = Cayston</p> Signup and view all the answers

    Ceftaroline can be used to treat complicated skin and soft tissue infections.

    <p>True</p> Signup and view all the answers

    What type of bacteria are Monobactams specifically effective against?

    <p>Aerobic Gram-negative organisms</p> Signup and view all the answers

    What is the mechanism of action of Daptomycin?

    <p>Binds to cell membrane causing depolarization</p> Signup and view all the answers

    Daptomycin is contraindicated for use in pediatric patients younger than one year of age.

    <p>True</p> Signup and view all the answers

    What are the indications for using Daptomycin?

    <p>Infections caused by Gram-positive bacteria, including sepsis and endocarditis, MRSA and vancomycin resistant skin and soft tissue infections.</p> Signup and view all the answers

    Daptomycin is an example of a ____.

    <p>Lipopeptide</p> Signup and view all the answers

    Which of the following is a common adverse effect of Daptomycin?

    <p>Rash</p> Signup and view all the answers

    Match the following antibiotics with their indicated use:

    <p>Daptomycin = Gram-positive infections Tetracyclines = Bacterial protein synthesis inhibition</p> Signup and view all the answers

    Tetracyclines should be avoided during pregnancy.

    <p>True</p> Signup and view all the answers

    Dairy products like _____ should be avoided when taking Tetracyclines.

    <p>milk</p> Signup and view all the answers

    Study Notes

    Diabetes Mellitus

    • Diabetes mellitus is a condition affecting how the body uses blood sugar (glucose).
    • The cause varies by type, but all types can lead to excess sugar in the blood.
    • Types include Type 1, Type 2, and Gestational diabetes.

    Diagnosis

    • Normal Glucose Tolerance: Fasting plasma glucose <100 mg/dL (5.6 mmol/L), two hours after glucose load <140 mg/dL (7.8 mmol/L), HbA1c <5.7%
    • Prediabetes: Fasting plasma glucose 100-125 mg/dL (5.6-6.9 mmol/L), two hours after glucose load ≥ 140-199 mg/dL (7.8-11.0 mmol/L), HbA1c 5.7%-6.4%
    • Diabetes Mellitus: Fasting plasma glucose ≥126 mg/dL (7.0 mmol/L), two hours after glucose load ≥200 mg/dL (11.1 mmol/L), HbA1c ≥6.5%

    Causes

    • Insulin resistance: Cells in muscles, fat, and liver don't respond to insulin properly.
    • Autoimmune disease: The immune system attacks insulin-producing cells in the pancreas.
    • Hormonal imbalances: During pregnancy, the placenta releases hormones that cause insulin resistance.

    Symptoms

    • Increased thirst (polydipsia) and dry mouth
    • Frequent urination
    • Fatigue
    • Blurred vision
    • Unexplained weight loss
    • Numbness or tingling in hands or feet
    • Slow-healing sores or cuts
    • Frequent skin and/or vaginal yeast infections

    Non-Pharmacological Treatment

    • Lifestyle modifications: Diet, physical activity, weight management, stress management
    • Self-monitoring: Blood sugar monitoring, ketone testing
    • Patient education: Diabetes education, continuous learning
    • Medical follow-up: Regular checkups, eye exams, foot exams

    Types of Diabetes (in Detail)

    Type 1 Diabetes

    • Hallmark: Selective beta cell (B cell) destruction, absolute insulin deficiency
    • Subtypes: Immune-mediated (Type 1a), Idiopathic (Type 1b)
    • Demographics: Younger than 30 years at diagnosis, but onset can occur at any age. Highest incidence in northern Europe and Sardinia.
    • Risk Factors: Family history & genetics, geography, age
    • Symptoms: Feeling more thirsty than usual, urinating a lot, bed-wetting (night), feeling very hungry, losing weight without trying, irritable or having mood changes, tired and weak, blurry vision
    • Pharmacological Treatment: Insulin replacement (rapid-acting, short-acting, intermediate-acting, long-acting).

    Type 2 Diabetes

    • Heterogeneous group of conditions: Insulin resistance and relative deficiency in insulin secretion
    • Risk Factors: Obesity, age (40 and above), family history.
    • Symptoms: Polydipsia, polyuria, polyphagia
    • Pharmacological Treatment: Lifestyle modifications, oral antidiabetic agents (first-line therapy), insulin (later stage).

    Gestational Diabetes

    • Occurs during pregnancy: Placenta and placental hormones create insulin resistance that is most pronounced in the last trimester.
    • Diagnosis is established during any abnormality in glucose levels during pregnancy.

    Cushing Syndrome

    • Cushing syndrome occurs when the body has too much cortisol for an extended period.
    • Causes include: Excessive cortisol production (stress hormone) in the body, prolonged use of glucocorticoids (e.g. Prednisone, Dexamethasone), pituitary adenoma, nodular hyperplasia of the adrenal gland, ectopic production of ACTH (e.g. adrenal cortical adenoma, lung, pancreas, thyroid, and thymus tumors).
    • Risk Factors: Age (25 to 50 yo), gender (70% female, 30% male), people who take cortisol medication, chronic stress conditions, obesity, - uncontrolled type 2 diabetes.
    • Main Symptoms include: Moon face (round face), fatty hump in neck (buffalo hump), purple stretch marks (purple striae).
    • Additional Symptoms include: hypertension, diabetes, red cheeks, easy bruising on the arms and legs, generalized weakness and tiredness (fatigue), osteoporosis, hypokalemia, blurry vision and dizziness, weak muscles and thinner arms and legs, libido changes (sex drive) and erectile dysfunction, stunted growth in children, and excessive hair growth

    Pharmacological Treatment (In Detail)

    • Steroid Synthesis Inhibitors: Mitotane, Metopirone, Ketoconazole, Mifepristone (Inhibit specific steps of cortisol synthesis)
    • Non-Pharmacological Treatment: Trans-sphenoidal adenomectomy, hypophysectomy, Bilateral adrenalectomy, Radiotherapy for pituitary adenoma, dietary changes, stress management, and exercise.

    Additional Topics (Drugs from Various Presentation Slides)

    • Cell Wall Inhibitors (Penicillins): These antibiotics work by interfering with the synthesis of bacterial cell walls. Natural penicillins (e.g., penicillin G), semi-synthetic penicillins (e.g., penicillin V), and penicillinase-resistant penicillins (e.g., nafcillin, oxacillin, dicloxacillin) are examples, along with aminopenicillins, extended-spectrum, and combination penicillins.

    • Glycopeptides (Vancomycin, Telavancin, Teicoplanin, Dalbavancin, Oritavancin): These antibiotics inhibit cell wall synthesis, and are generally active against gram-positive bacteria

    • Lipopeptides (Daptomycin): Active against gram-positive bacteria—they kill the bacteria by disrupting their cell membranes.

    • Sulfonamides and Trimethoprim: These drugs block bacterial synthesis of dihydrofolic acid, thereby interfering with bacterial growth.

    • Oxazolidinones (Linezolid, Tedizolid): These drugs inhibit bacterial protein synthesis in different ways.

    • Aminoglycosides (Amikacin, Gentamicin, Streptomycin, Neomycin) These interfere with bacterial protein synthesis.

    • Macrolides (Erythromycin, Clarithromycin, Azithromycin): Inhibits bacterial protein synthesis.

    • Chloramphenicol: Active against several bacteria by interfering with protein synthesis within the bacterial cell

    • Tetracyclines: Inhibit bacterial protein synthesis.

    • Carbapenems: Broad-spectrum antibiotics often used for serious bacterial infections. Imipenem (along with cilastatin, as it is unstable), ertapenem, doripenem, and meropenem are examples.

    • Fluoroquinolones: These drugs inhibit bacterial DNA replication via various enzymes. Ciprofloxacin, levofloxacin, Moxifloxacin are examples.

    • Antifungals: Various classes of drugs for combating fungal infections, including polyenes, imidazoles, triazoles, allylamines, echinocandins, and others—their mechanisms differ and target specific aspects of fungal cell wall integrity and metabolic processes.

    Important Note: This summary is for general study purposes and does not substitute professional medical advice. Always consult with healthcare providers for accurate and personalized information about any medical condition or treatment.

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    Description

    Test your knowledge on the uses of 2nd generation cephalosporins and conditions related to Addison’s disease. The quiz includes matching exercises, identifying symptoms, and understanding drug effectiveness against bacteria. Perfect for students in pharmacology or medicine.

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