Basic Life Support (BLS) Practice Exam

What is the main purpose of left uterine displacement in a pregnant patient during CPR?

1. To increase the effectiveness of compressions

2. To relieve pressure from the heart

3. To ensure proper AED pad placement

4. To prevent supine hypotensive syndrome

The correct answer is: To prevent supine hypotensive syndrome

The main purpose of left uterine displacement during CPR in a pregnant patient is to prevent supine hypotensive syndrome. In this condition, the weight of the uterus can compress the inferior vena cava when the patient is lying flat on her back, particularly in the later stages of pregnancy. This compression can lead to decreased blood return to the heart, resulting in hypotension, reduced cardiac output, and impaired perfusion to vital organs, including the brain. By displacing the uterus to the left, the pressure on the inferior vena cava is relieved, allowing for better venous return, which enhances overall circulation and increases the likelihood of effective CPR. This is crucial because maintaining blood flow to the heart and brain during resuscitation efforts is vital for the survival and recovery of both the mother and the fetus.