Cardiac Care & Emergency Pharmacology Flashcards
7 cards from real CEP practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Cardiac Care & Emergency Pharmacology flashcards as text
A patient in ventricular fibrillation does not respond to the first defibrillation attempt. What is the next immediate action?
Answer: Resume CPR for 2 minutes before the next shock
After a failed defibrillation, CPR should be resumed immediately for 2 minutes before reassessing rhythm and delivering another shock.
Which electrolyte abnormality is most commonly associated with Torsades de Pointes?
Answer: Hypomagnesemia
Hypomagnesemia is the most common electrolyte disturbance causing Torsades de Pointes by prolonging the QT interval.
A patient presents with a heart rate of 180 bpm with a narrow QRS and no P waves visible. The patient is hemodynamically stable. What rhythm is most likely?
Answer: Supraventricular tachycardia (SVT)
SVT presents with a regular narrow-complex tachycardia around 150-220 bpm where P waves are often hidden in the T wave.
A 60-year-old male takes metoprolol daily and presents with a HR of 34 bpm and hypotension. Which medication is contraindicated?
Answer: Atropine
Atropine is unlikely to be effective in beta-blocker overdose bradycardia because the block occurs downstream of the muscarinic receptor; glucagon or calcium are preferred.
During a cardiac arrest, when should the first dose of amiodarone be given?
Answer: After the third defibrillation attempt
Amiodarone 300 mg IV is administered after the third defibrillation attempt in refractory VF/pVT per AHA guidelines.
A patient with an acute MI develops a new right bundle branch block and hypotension. Which intervention takes priority?
Answer: Immediate transport for PCI
New RBBB with hemodynamic compromise in the setting of acute MI indicates a large infarction requiring immediate percutaneous coronary intervention.
Nitroglycerin is contraindicated in which of the following clinical scenarios?
Answer: Inferior STEMI with suspected right ventricular infarction
Nitroglycerin is contraindicated in right ventricular infarction because preload reduction can cause severe hypotension in a preload-dependent RV.