Practice Test Geeks(CMT) Certified Cardiac Monitor Technician Practice Test
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CMT Pharmacology and Cardiac Medications Flashcards

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

Read the first 6 CMT Pharmacology and Cardiac Medications flashcards as text

  1. Which class of antiarrhythmic drug works by blocking sodium channels and is used to treat ventricular arrhythmias?

    Answer: Class IA/IB/IC agents

    Class I antiarrhythmic drugs (IA, IB, IC) block sodium channels, slowing conduction velocity and treating ventricular arrhythmias.

  2. Amiodarone is classified as which class of antiarrhythmic medication?

    Answer: Class III

    Amiodarone is a Class III antiarrhythmic that primarily blocks potassium channels, prolonging the action potential and refractory period.

  3. Which medication is the first-line treatment for symptomatic bradycardia caused by increased vagal tone?

    Answer: Atropine

    Atropine is the first-line drug for symptomatic bradycardia as it blocks muscarinic receptors to increase heart rate.

  4. A patient receiving digoxin develops bradycardia with first-degree AV block. The cardiac monitor technician should alert the nurse because this may indicate:

    Answer: Digoxin toxicity

    Bradycardia and AV block in a patient on digoxin are classic signs of digoxin toxicity requiring immediate clinical intervention.

  5. Which electrolyte imbalance most significantly increases a patient's risk of digoxin toxicity?

    Answer: Hypokalemia

    Hypokalemia enhances digoxin binding to Na+/K+-ATPase, increasing toxicity risk even at therapeutic drug levels.

  6. Adenosine is the drug of choice for terminating which arrhythmia?

    Answer: Paroxysmal supraventricular tachycardia (PSVT)

    Adenosine transiently blocks AV nodal conduction, effectively terminating reentrant SVT that involves the AV node.