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Pharmacology for Paramedics Flashcards

7 cards from real AEMCA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Pharmacology for Paramedics flashcards as text

  1. A patient with suspected organophosphate poisoning presents with excessive secretions, miosis, and bradycardia. Which drug is the primary antidote?

    Answer: Atropine

    Atropine blocks muscarinic receptors and reverses the cholinergic effects of organophosphate toxicity.

  2. Which benzodiazepine reversal agent should be used cautiously in patients with a history of seizure disorders?

    Answer: Flumazenil

    Flumazenil can precipitate seizures in benzodiazepine-dependent patients by rapidly reversing CNS depression.

  3. A 68-year-old on warfarin has a femur fracture with uncontrolled bleeding. Which agent is most appropriate to reverse anticoagulation in the field?

    Answer: Tranexamic acid

    Tranexamic acid inhibits fibrinolysis and is a prehospital option for major hemorrhage, while FFP and Vitamin K are hospital-based.

  4. Which medication is contraindicated in patients with suspected cocaine-induced chest pain and hypertension?

    Answer: Propranolol

    Non-selective beta-blockers like propranolol cause unopposed alpha-adrenergic stimulation, worsening coronary vasospasm in cocaine toxicity.

  5. A patient in SVT fails vagal maneuvers. The first-line pharmacological intervention is:

    Answer: Adenosine 6 mg rapid IV push

    Adenosine 6 mg given as a rapid IV push is first-line for stable SVT due to its ultra-short half-life and AV node blocking effect.

  6. The therapeutic effect of morphine sulfate in acute pulmonary edema is primarily due to:

    Answer: Venodilation reducing preload and anxiolysis

    Morphine reduces venous return (preload) through venodilation and decreases the patient's anxiety-driven sympathetic drive.

  7. A patient receives succinylcholine for RSI. Which condition is a relative contraindication due to risk of life-threatening hyperkalemia?

    Answer: Burns more than 72 hours old

    Denervation injuries and burns older than 48-72 hours cause upregulation of nicotinic receptors, leading to massive potassium efflux with succinylcholine.