CAFI Certified Animal Feed Inspector
Exam
Question 1. What is the primary purpose of priming solutions in
cardiopulmonary bypass setup?
A) To sterilize the circuit components
B) To initiate blood flow through the circuit
C) To prevent air embolism during cannulation
D) To fill the circuit with a solution that prevents air bubbles and
maintains circuit patency
Answer: D
Explanation: Priming solutions are used to fill the bypass circuit,
displacing air and preventing air embolism, ensuring circuit patency and
reducing postoperative bleeding.
Question 2. Which component in the CPB circuit is responsible for gas
exchange between oxygen and blood?
,CAFI Certified Animal Feed Inspector
Exam
A) Heat exchanger
B) Reservoir
C) Oxygenator
D) Pump
Answer: C
Explanation: The oxygenator facilitates gas exchange, oxygenating the
blood and removing CO2 during cardiopulmonary bypass.
Question 3. During CPB initiation, what is the significance of arterial
cannulation?
A) To drain venous blood from the patient
B) To deliver oxygenated blood from the circuit to the systemic
circulation
,CAFI Certified Animal Feed Inspector
Exam
C) To administer cardioplegic solution directly into coronary arteries
D) To vent the left ventricle
Answer: B
Explanation: Arterial cannulation delivers oxygenated blood from the
oxygenator into the systemic circulation, maintaining perfusion during
bypass.
Question 4. Which hemodynamic parameter is most directly affected by
flow rate adjustments during CPB?
A) Heart rate
B) Mean arterial pressure
C) Central venous pressure
D) Pulmonary artery pressure
, CAFI Certified Animal Feed Inspector
Exam
Answer: B
Explanation: Adjusting flow rate impacts mean arterial pressure, which
is crucial for adequate organ perfusion during bypass.
Question 5. What temperature management protocol involves cooling
the patient to approximately 20°C for circulatory arrest?
A) Normothermia
B) Hypothermia
C) Deep hypothermic circulatory arrest (DHCA)
D) Hyperthermia
Answer: C
Explanation: DHCA involves cooling the patient to around 20°C to allow
safe circulatory arrest during complex surgeries.
Exam
Question 1. What is the primary purpose of priming solutions in
cardiopulmonary bypass setup?
A) To sterilize the circuit components
B) To initiate blood flow through the circuit
C) To prevent air embolism during cannulation
D) To fill the circuit with a solution that prevents air bubbles and
maintains circuit patency
Answer: D
Explanation: Priming solutions are used to fill the bypass circuit,
displacing air and preventing air embolism, ensuring circuit patency and
reducing postoperative bleeding.
Question 2. Which component in the CPB circuit is responsible for gas
exchange between oxygen and blood?
,CAFI Certified Animal Feed Inspector
Exam
A) Heat exchanger
B) Reservoir
C) Oxygenator
D) Pump
Answer: C
Explanation: The oxygenator facilitates gas exchange, oxygenating the
blood and removing CO2 during cardiopulmonary bypass.
Question 3. During CPB initiation, what is the significance of arterial
cannulation?
A) To drain venous blood from the patient
B) To deliver oxygenated blood from the circuit to the systemic
circulation
,CAFI Certified Animal Feed Inspector
Exam
C) To administer cardioplegic solution directly into coronary arteries
D) To vent the left ventricle
Answer: B
Explanation: Arterial cannulation delivers oxygenated blood from the
oxygenator into the systemic circulation, maintaining perfusion during
bypass.
Question 4. Which hemodynamic parameter is most directly affected by
flow rate adjustments during CPB?
A) Heart rate
B) Mean arterial pressure
C) Central venous pressure
D) Pulmonary artery pressure
, CAFI Certified Animal Feed Inspector
Exam
Answer: B
Explanation: Adjusting flow rate impacts mean arterial pressure, which
is crucial for adequate organ perfusion during bypass.
Question 5. What temperature management protocol involves cooling
the patient to approximately 20°C for circulatory arrest?
A) Normothermia
B) Hypothermia
C) Deep hypothermic circulatory arrest (DHCA)
D) Hyperthermia
Answer: C
Explanation: DHCA involves cooling the patient to around 20°C to allow
safe circulatory arrest during complex surgeries.
