Perioperative Care in Cardiac Surgery Flashcards
6 cards from real CSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Perioperative Care in Cardiac Surgery flashcards as text
Which preoperative medication is typically continued until the day of cardiac surgery to prevent rebound angina?
Answer: Beta-blockers
Beta-blockers should be continued perioperatively to prevent rebound tachycardia and ischemia in patients undergoing cardiac surgery.
The most common early arrhythmia occurring after cardiac surgery is:
Answer: Atrial fibrillation
Atrial fibrillation occurs in up to 30–40% of patients after cardiac surgery and is the most common postoperative arrhythmia.
Low cardiac output syndrome after cardiac surgery is best initially managed with:
Answer: Inotropic support and optimization of preload and afterload
Low cardiac output syndrome is managed by optimizing preload, reducing afterload, and adding inotropes to improve myocardial contractility.
Cardiac tamponade after cardiac surgery classically presents with:
Answer: Hypotension, elevated CVP, and equalization of filling pressures
Cardiac tamponade produces the classic triad of hypotension, elevated central venous pressure, and equalization of diastolic pressures across cardiac chambers.
Which electrolyte abnormality most commonly predisposes patients to arrhythmias in the early postoperative period after cardiac surgery?
Answer: Hypokalemia
Hypokalemia is common after cardiac surgery due to diuresis and hemodilution, and it significantly increases the risk of postoperative arrhythmias.
The most reliable indicator of adequate renal perfusion in the immediate postoperative cardiac surgery patient is:
Answer: Urine output greater than 0.5 mL/kg/hour
A urine output greater than 0.5 mL/kg/hour is the most practical real-time indicator of adequate renal perfusion in cardiac surgery patients.