Pharmacology & Drug Administration Flashcards
7 cards from real EMS 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 & Drug Administration flashcards as text
Which drug class does adenosine belong to, and what is its primary EMS use?
Answer: Antiarrhythmic used to convert supraventricular tachycardia (SVT)
Adenosine is an endogenous antiarrhythmic that temporarily blocks AV node conduction to terminate SVT.
A patient is experiencing an anaphylactic reaction. The standard adult dose of epinephrine 1:1,000 given IM is:
Answer: 0.3 mg
The standard adult IM dose for anaphylaxis is 0.3 mg of epinephrine 1:1,000 into the anterolateral thigh.
What is the mechanism of action of naloxone (Narcan)?
Answer: It competitively blocks opioid receptors
Naloxone works by competitively binding and blocking opioid receptors, reversing opioid-induced CNS and respiratory depression.
When administering nitroglycerin sublingually, which vital sign must be checked BEFORE each dose?
Answer: Blood pressure
Blood pressure must be checked before each nitroglycerin dose because it causes vasodilation and can precipitate dangerous hypotension.
A 70 kg patient needs a dopamine infusion at 5 mcg/kg/min. The bag contains 400 mg in 250 mL. What is the drip rate in mL/hr?
Answer: 13.1 mL/hr
Dose = 5 mcg/kg/min × 70 kg = 350 mcg/min; concentration = 400,000 mcg/250 mL = 1,600 mcg/mL; rate = 350/1,600 × 60 min = 13.1 mL/hr.
Which of the following is an absolute contraindication to morphine sulfate in EMS?
Answer: Patient has a systolic BP below 90 mmHg
Morphine causes vasodilation and can worsen hypotension; a systolic BP below 90 mmHg is an absolute contraindication.
Activated charcoal is CONTRAINDICATED in which of the following ingestion scenarios?
Answer: Caustic (acid or alkali) ingestion
Activated charcoal is contraindicated for caustic ingestion because it does not adsorb these substances and obscures endoscopic evaluation.