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Cardiac Emergencies Flashcards

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

Read the first 7 Cardiac Emergencies flashcards as text

  1. A patient presents with sudden onset of severe, tearing chest pain radiating to the back. BP is 190/110 in the right arm and 140/90 in the left arm. What is the most likely diagnosis?

    Answer: Aortic dissection

    Tearing chest pain radiating to the back with blood pressure differential between arms is the classic presentation of aortic dissection, a life-threatening emergency.

  2. Which of the following ECG findings is MOST specific for right ventricular (RV) infarction in a patient with an inferior STEMI?

    Answer: ST elevation in lead V4R (right-sided lead)

    ST elevation in lead V4R (right-sided lead) is the most sensitive and specific finding for right ventricular infarction in the setting of an inferior STEMI.

  3. A patient with RV infarction secondary to inferior STEMI develops hypotension. Which intervention is CONTRAINDICATED?

    Answer: Nitroglycerin

    Nitroglycerin is contraindicated in RV infarction because it causes venodilation, reducing preload that the impaired RV critically depends on to maintain cardiac output.

  4. A 70-year-old patient is in complete (third-degree) AV block with a ventricular rate of 32 bpm and is hypotensive. Atropine fails to improve the rate. What is the next step?

    Answer: Transcutaneous pacing (TCP)

    When atropine fails in symptomatic complete AV block, transcutaneous pacing is the next intervention to maintain hemodynamically adequate ventricular rates.

  5. Which of the following statements about amiodarone use in cardiac arrest is correct?

    Answer: It is given after the third defibrillation attempt for shock-refractory VF/VT

    Amiodarone 300 mg IV/IO is administered for VF/pulseless VT that persists after the third defibrillation attempt, with a second dose of 150 mg if needed.

  6. A patient with chest pain and diaphoresis has ST depression in V1-V3 with dominant R waves. Which condition does this pattern suggest?

    Answer: Posterior STEMI (posterior wall MI)

    ST depression with tall R waves in V1-V3 represents the reciprocal mirror image of a posterior STEMI and should prompt acquisition of posterior leads V7-V9.

  7. A patient in cardiac arrest has CPR in progress. The monitor shows a rhythm with no discernible P waves, a rate of 30 bpm, and very wide QRS complexes. How should this rhythm be treated?

    Answer: Continue CPR, treat reversible causes, epinephrine every 3-5 min — this is non-shockable

    Idioventricular rhythm (agonal rhythm) during cardiac arrest is non-shockable PEA; treatment focuses on high-quality CPR, epinephrine, and identifying and reversing underlying causes.