CCP CCP Blood Conservation & Transfusion Strategies

Question 1

What is the primary goal of intraoperative cell salvage (ICS) during cardiac surgery?

Accepted Answer

Recover and reinfuse the patient's own washed red blood cells

Answer

Increase platelet count

Answer

Remove air bubbles from the circuit

Answer

Filter bacterial contamination from shed blood

Question 2

Modified ultrafiltration (MUF) performed after CPB separation is used primarily to:

Accepted Answer

Hemoconcentrate blood and remove inflammatory mediators

Answer

Remove excess potassium from the blood

Answer

Anticoagulate the patient post-bypass

Answer

Increase pump prime volume

Question 3

What hematocrit level is typically accepted as the minimum safe threshold during hypothermic CPB?

Accepted Answer

20-21%

Answer

15%

Answer

25%

Answer

30%

Question 4

Antifibrinolytic drugs such as tranexamic acid and epsilon-aminocaproic acid work by:

Accepted Answer

Inhibiting plasminogen activators to prevent fibrin clot breakdown

Answer

Activating thrombin directly

Answer

Neutralizing residual heparin

Answer

Increasing platelet aggregation

Question 5

Retrograde autologous priming (RAP) of the CPB circuit is intended to:

Accepted Answer

Reduce hemodilution by replacing crystalloid prime with the patient's own blood

Answer

Increase the total prime volume

Answer

Anticoagulate the circuit before cannulation

Answer

Test circuit integrity before bypass initiation

Question 6

The red blood cell transfusion trigger most commonly recommended by STS/SCA guidelines in stable cardiac surgical patients is hemoglobin below:

Accepted Answer

7 g/dL

Answer

10 g/dL

Answer

8 g/dL

Answer

6 g/dL