Pediatric CCRN With Actual 2025/2026 Latest Exam Questions with correct Answers

Pediatric CCRN With Actual 2025/2026 Latest Exam Questions with correct Answers 3 causes for Fetal shunt closure - 1. increase in aterial oxygen tension 2. decreased prostaglandins 3. decreased adenosine levels When does the Ductus Arteriosus close? - within 10-24 hours of birth When does the Foramen Ovale Close? - When LA pressure exceeds RA pressure (can stay open for 6mo to a year) What does Cardiac Output measure? - Efficiency of the heart Cardiac Output is the measure of what? - Volume of blood pumped by the heart in one minute How is cardiac output calculated? - Stroke volume x heart rate Define Preload - Elasticity of the heart when the ventricles are at max fill Two factors contributing to DECREASE in preload - 1. dehydration 2. vasodilation