Analgesics Overview and Usage

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Questions and Answers

Which of the following medications is an antipyretic but does not have anti-inflammatory properties?

  • Ibuprofen
  • Indomethacin
  • Acetaminophen (correct)
  • Aspirin

What is the antidote for acetaminophen toxicity?

  • N-acetylcysteine (correct)
  • Sodium bicarbonate
  • Methionine
  • Activated charcoal

Which analgesic should be administered with food to minimize gastrointestinal side effects?

  • Oxycodone
  • Acetaminophen
  • Celecoxib
  • Ibuprofen (correct)

What is a common side effect of long-term NSAID use?

<p>Gastrointestinal bleeding (C)</p> Signup and view all the answers

Which statement is true regarding the administration of opioids?

<p>Opioids lower blood pressure and may cause altered mental status. (C)</p> Signup and view all the answers

What is a primary function of ACE inhibitors?

<p>Inhibit angiotensin to lower blood pressure (D)</p> Signup and view all the answers

What is a common side effect associated with ACE inhibitors?

<p>Non-productive dry cough (A)</p> Signup and view all the answers

Which medication class primarily functions by blocking β-adrenergic receptors?

<p>Beta Blockers (A)</p> Signup and view all the answers

What effect do calcium channel blockers have on arterial vessels?

<p>Dilate arteries to improve coronary perfusion (B)</p> Signup and view all the answers

What should be monitored in patients taking ACE inhibitors?

<p>Blood pressure and potassium levels (C)</p> Signup and view all the answers

What is one of the primary serious side effects associated with long-term use of NSAIDs?

<p>Gastrointestinal bleeding (D)</p> Signup and view all the answers

Which medication requires monitoring for respiratory rate before administration?

<p>Oxycodone (C)</p> Signup and view all the answers

What is a potential complication of administering Ketorolac?

<p>Gastrointestinal bleed (A)</p> Signup and view all the answers

What quantity of acetaminophen should not exceed in 24 hours to avoid toxicity?

<p>&lt; 3000 mg (D)</p> Signup and view all the answers

Which of the following indicates a patient may be at increased risk for acetaminophen toxicity?

<p>Long-term alcohol consumption (C)</p> Signup and view all the answers

What expected laboratory value is used to monitor patients on Heparin?

<p>APTT (D)</p> Signup and view all the answers

Which class of medication may lead to increased risk of anaphylaxis?

<p>NSAIDs (C)</p> Signup and view all the answers

What is the correct antidote for aspirin toxicity?

<p>Sodium bicarbonate (D)</p> Signup and view all the answers

Flashcards

Analgesics ASA (Aspirin)

Antipyretic, analgesic, antiplatelet drug. 81mg daily for cardiac issues, 325mg for acute MI. Enteric-coated to prevent stomach irritation.

Analgesics APAP (Acetaminophen)

Antipyretic and analgesic that blocks pain receptors, lacks anti-inflammatory properties. Liver damage risk with long-term use (especially with alcohol).

APAP Maximum Dose

Less than 3000mg in 24 hours.

APAP Antidote

N-acetylcysteine (NAC/Mucomyst) administered orally or intravenously.

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NSAIDs

Antipyretic and anti-inflammatory drugs affecting steroidal function. Can increase bleeding time.

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NSAIDs: Kidney Function

Monitor kidney function with long-term NSAID use due to potential for kidney problems.

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NSAIDs: Anaphylaxis

High risk of severe allergic reactions (anaphylaxis).

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Ibuprofen Maximum Dose

Less than 3600mg per 24 hours.

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Ketorolac

IV NSAID, 15-30mg Q6; maximum of 120mg/day (30mg) or 60mg (15mg).

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Opioids

Affect opioid receptors in the brain. Slows HR, BP, RR, and causes GI effects like constipation.

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Opioid Administration Concern

Caution with hypovolemic or unstable patients, and check for allergies to ASA and APAP.

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Warfarin Antidote

Heparin-Protamine Sulfate, Vitamin K

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ACE Inhibitors

Lower blood pressure by inhibiting angiotensin and decreasing aldosterone, leading to sodium and water excretion.

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ACE Inhibitor Side Effect

Possible potassium retention, dry cough, metallic taste, dizziness, fatigue, and headache.

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ACE Inhibitors and NSAIDs

Combining ACE inhibitors with NSAIDs can reduce the effectiveness of ACE inhibitors.

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Beta Blockers

Block beta-adrenergic receptors to slow heart rate and lower blood pressure by decreasing cardiac output and oxygen consumption.

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Calcium Channel Blockers

Dilate arteries by preventing calcium from entering cells, reducing blood pressure and workload on the heart.

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Cardiac Medications Monitoring

Regularly monitor blood pressure, heart rate, and electrolytes (especially potassium) when taking cardiac medications.

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ASA (Aspirin) use

81mg daily for cardiac issues, 325mg for acute MI, antiplatelet, antipyretic, analgesic, enteric-coated to prevent stomach issues

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APAP (Acetaminophen) Dose

Maximum dose: less than 3000mg/24 hrs

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APAP Side Effect

Liver damage with long-term use, especially with alcohol

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APAP Antidote

N-acetylcysteine (NAC/Mucomyst), oral or IV

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NSAIDs use

Anti-inflammatory, antipyretic, affect steroidal function. Monitor kidney function, high risk of anaphylaxis

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Ibuprofen max dose

Less than 3600 mg/24 hrs

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Ketorolac (IV NSAID): Dosage

15-30mg Q6hrs; IV, max 120mg/day (30mg dose) or 60mg/day (15mg dose)

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Opioids (Codeine, etc.) effect

Affect brain opioid receptors, slow HR, BP, RR, cause constipation, altered mental state

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Opioid Administration Precautions

Avoid hypovolemic, unstable patients, and check for ASA/APAP allergy; monitor RR before administering

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Heparin use

Treats blood clots or decreasing MI

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Enoraxparin use

Used to treat blood clots or prevent, or decrease MI (heart attack)

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SQ injection sites

Rotate injection sites in abdomen, and keep seal on air bubble

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Bleeding Risk

Increased risk with ETOH abuse, liver failure, and certain medications

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Vitamin K Diet

Limit green leafy vegetables to avoid decreasing vitamin k levels.

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Study Notes

Analgesics

  • Aspirin (ASA):

    • Uses: Antipyretic, analgesic, antiplatelet. Enteric coated to prevent GI irritation. 81mg daily for cardiac conditions (not pain or fever), 325mg for acute MI.
    • Toxicity: Tinnitus, sweating/fever, headache, dizziness, respiratory distress.
    • Antidote: Sodium bicarbonate, activated charcoal.
  • Acetaminophen (APAP):

    • Uses: Antipyretic, analgesic (blocks pain receptors). Lacks anti-inflammatory effects; no effect on bleeding.
    • Toxicity (long-term use): Harsh liver side effects. Alcohol use increases liver damage risk.
    • Dosage limit: < 3000mg/24 hours.
    • Antidote: N-acetylcysteine (NAC/Mucomyst) - PO or IV.
  • NSAIDs (Ibuprofen, Naprosyn, Diclofenac, Indomethacin, Celecoxib, Mobic):

    • Uses: Antipyretic, anti-inflammatory (affecting steroid function).
    • Monitoring: Monitor kidney function with long-term use.
    • Bleeding Risk: Can increase bleeding time; high risk for anaphylaxis.
    • Specific Examples:
      • Indomethacin (Indocin): Arthritis/gout treatment, increased GI bleed risk.
      • Ibuprofen: < 3600mg/day; take with food/milk.
    • IV/IM NSAID (Ketorolac): Given intravenously; 15 or 30mg every 6 hours (15mg dose does not exceed 60mg/day; a 30mg dose does not exceed 120mg/day). Note: Risk for GI bleed.
    • Side effects: Headache, dizziness, nervousness, constipation, diarrhea, flatulence, GI disturbance. GI tract protection may be affected. Do not use in patients with GI problems or who are on PPIs.
  • Opioids (Oxycodone, Hydrocodone, Codeine):

    • Mechanism: Affect opioid receptors in the brain, blocking CNS receptors.
    • Side effects: Reduced heart rate (HR), blood pressure (BP), respiratory rate (RR), and GI effects (constipation); altered mental response.
    • Contraindications: Do not give to hypovolemic patients or patients with unstable/low vital signs.
    • Precautions: Check allergies to ASA and APAP. Monitor RR.

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