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Cardiopulmonary Bypass Flashcards

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

Read the first 6 Cardiopulmonary Bypass flashcards as text

  1. What is the typical blood flow rate during adult cardiopulmonary bypass?

    Answer: 2.2 to 2.4 L/min/m² of body surface area

    The standard perfusion flow rate of 2.2-2.4 L/min/m² maintains adequate organ perfusion during bypass.

  2. What is myocardial protection during cardiac surgery?

    Answer: Techniques to prevent heart muscle damage during the period the heart is stopped

    Myocardial protection involves strategies such as cardioplegia to prevent ischemic damage to the heart while it is arrested during surgery.

  3. What is cardioplegia?

    Answer: A solution delivered to the heart to arrest it and protect the myocardium during surgery

    Cardioplegia is a cold, potassium-rich solution delivered to the heart that causes it to stop beating and reduces metabolic demand, protecting it during surgery.

  4. What is the purpose of an arterial filter in the bypass circuit?

    Answer: To remove microemboli, air bubbles, and debris from blood before it returns to the patient

    The arterial filter is a critical safety device that removes air bubbles, particulate matter, and microemboli before blood is returned to the patient.

  5. What is ultrafiltration during cardiopulmonary bypass?

    Answer: A technique to remove excess fluid and concentrate blood components

    Ultrafiltration uses a hemoconcentrator to remove excess water and low-molecular-weight substances from the blood, reversing hemodilution.

  6. What temperature is typically used for mild hypothermic bypass?

    Answer: 32-34°C

    Mild hypothermia at 32-34°C reduces metabolic demand and provides some organ protection while minimizing the complications of deeper cooling.

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