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 is taking sildenafil and presents with chest pain. Which medication must be withheld?
Answer: Nitroglycerin
Nitroglycerin is absolutely contraindicated within 24-48 hours of phosphodiesterase-5 inhibitor (e.g., sildenafil) use due to the risk of severe, refractory hypotension.
Which finding on a 12-lead ECG is pathognomonic of hyperkalemia in a critical patient?
Answer: Peaked T waves with widened QRS
Severe hyperkalemia produces peaked (tent-shaped) T waves followed by widening of the QRS complex as potassium rises, reflecting slowed ventricular conduction.
A patient in VF arrest has received epinephrine and two shocks. Amiodarone 300 mg is given. When is the next dose of amiodarone appropriate?
Answer: 150 mg after 2-minute CPR cycle and reassessment
A second dose of amiodarone 150 mg IV may be given after completing a 2-minute CPR cycle and reassessing if VF/pVT persists.
Which of the following is the most appropriate prehospital intervention for a patient with suspected cardiac tamponade?
Answer: IV fluid bolus to maintain preload and rapid transport
Prehospital management of cardiac tamponade focuses on maintaining preload with IV fluids and rapid transport for pericardiocentesis in hospital.
A patient has a BP of 60/40 and is unresponsive after a syncopal episode. The monitor shows sinus bradycardia at 28 bpm. Transcutaneous pacing is initiated. What confirms electrical capture?
Answer: Wide QRS complexes after each pacer spike with a palpable pulse
Electrical capture is confirmed by a wide QRS following each pacer spike, and mechanical capture requires a corresponding palpable pulse.
Sodium bicarbonate is indicated in cardiac arrest caused by which of the following?
Answer: Hyperkalemia-induced cardiac arrest
Sodium bicarbonate can help shift potassium intracellularly, making it useful in hyperkalemia-induced cardiac arrest or arrest associated with tricyclic antidepressant overdose.
A patient with Wolff-Parkinson-White (WPW) syndrome develops atrial fibrillation. Which medication is dangerous?
Answer: Adenosine
Adenosine blocks the AV node but can accelerate conduction through the accessory pathway in WPW with AF, potentially precipitating ventricular fibrillation.