AEMCA Pharmacology for Paramedics 2

Question 1

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

Accepted Answer

Atropine

Answer

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

Question 2

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

Accepted Answer

Flumazenil

Answer

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

Question 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?

Accepted Answer

Tranexamic acid

Answer

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

Question 4

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

Accepted Answer

Propranolol

Answer

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

Question 5

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

Accepted Answer

Adenosine 6 mg rapid IV push

Answer

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.

AEMCA - Advanced Emergency Medical Care Assistant Practice Test