acls prep maternal cardiac arrest comprehensive re
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ACLS MATERNAL CARDIAC
ARREST
Comprehensive
Final Exam Review
Q&A
2024
,1. A 32-year-old pregnant woman at 30 weeks gestation collapses and is
unresponsive. What is the first step in assessing her condition?
- A. Check for a pulse and begin CPR if absent.
- B. Administer oxygen and monitor fetal heart rate.
- C. Perform an immediate cesarean section.
- D. Transport to the nearest hospital.
Answer: A. Check for a pulse and begin CPR if absent.
Rationale: Immediate assessment of pulse and initiation of CPR if
absent is critical in maternal cardiac arrest to ensure circulation to both the
mother and fetus.
2. During resuscitation of a pregnant patient, which modification is most
important?
- A. High-dose epinephrine administration.
- B. Left lateral tilt to relieve aortocaval compression.
- C. Double the standard dose of all resuscitation drugs.
- D. Avoid defibrillation to protect the fetus.
Answer: B. Left lateral tilt to relieve aortocaval compression.
Rationale: The left lateral tilt helps alleviate aortocaval compression by
the gravid uterus, which can improve venous return and cardiac output.
3. If a pregnant patient in cardiac arrest is brought to the emergency
department, what is the recommended time frame for delivery if
resuscitation is unsuccessful?
- A. Immediately upon arrival.
- B. Within 5 minutes of arrest.
- C. After 20 minutes of resuscitative efforts.
- D. Delivery is not recommended during resuscitation.
Answer: B. Within 5 minutes of arrest.
Rationale: Perimortem cesarean delivery within 5 minutes of maternal
cardiac arrest can improve maternal resuscitation chances and fetal
survival.
Question: Which of the following physiological changes occurs during
pregnancy that affects the resuscitation of a mother during cardiac arrest?
A) Decreased maternal blood volume
B) Increased oxygen consumption
, C) Decreased risk of thromboembolism
D) Decreased uterine blood flow
Answer: B) Increased oxygen consumption
Rationale: During pregnancy, there is an increase in oxygen
consumption due to the metabolic demands of the developing fetus, which
can impact resuscitation efforts.
Question: How does the increased maternal blood volume during
pregnancy affect resuscitation efforts during maternal cardiac arrest?
A) It decreases the risk of hypotension
B) It increases the risk of thromboembolism
C) It reduces the need for fluid resuscitation
D) It decreases the effectiveness of chest compressions
Answer: B) It increases the risk of thromboembolism
Rationale: The increased maternal blood volume during pregnancy can
predispose the patient to thromboembolic events, which need to be
considered during resuscitation.
Question: Which of the following changes in maternal physiology can
impact the resuscitation of the fetus during maternal cardiac arrest?
A) Decreased placental blood flow
B) Increased maternal catecholamine levels
C) Decreased fetal heart rate
D) Decreased risk of fetal hypoxia
Answer: A) Decreased placental blood flow
Rationale: Maternal cardiac arrest can compromise placental blood flow,
leading to decreased oxygen delivery to the fetus and impacting fetal well-
being.
Question: How does the positioning of the pregnant patient during
resuscitation affect outcomes for the mother and fetus?
A) Left lateral tilt improves maternal venous return
B) Supine position increases fetal oxygenation
C) Trendelenburg position prevents hypotension
D) Prone position enhances uterine blood flow
Answer: A) Left lateral tilt improves maternal venous return
Rationale: Left lateral tilt helps improve venous return to the heart in
pregnant patients, supporting maternal perfusion during resuscitation.
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