Pediatric CCRN Exam Pediatric CCRN Ultimate 2

Question 1

A 3-year-old with Tetralogy of Fallot develops a hypercyanotic ('Tet') spell. Which intervention is the PRIORITY?

Accepted Answer

Place the child in knee-chest position

Answer

Knee-chest position increases systemic vascular resistance, reducing right-to-left shunting and improving pulmonary blood flow during a Tet spell.

Question 2

A 6-month-old post-operative Norwood procedure has a central venous saturation of 40%. What does this finding indicate?

Accepted Answer

Imbalance between oxygen delivery and consumption

Answer

An SvO2 below 50–55% in a single-ventricle patient indicates that oxygen consumption is outpacing delivery, signaling hemodynamic compromise.

Question 3

Which electrocardiographic finding is most consistent with hyperkalemia in a pediatric patient?

Accepted Answer

Tall, peaked T waves with widened QRS

Answer

Hyperkalemia classically causes tall peaked T waves, widened QRS complexes, and ultimately a sine-wave pattern as potassium rises.

Question 4

A 10-year-old with dilated cardiomyopathy has a cardiac index of 1.7 L/min/m². Which medication is MOST appropriate to increase cardiac output?

Accepted Answer

Milrinone

Answer

Milrinone is a phosphodiesterase inhibitor that increases cardiac contractility and reduces afterload without increasing myocardial oxygen demand significantly.

Question 5

A neonate with transposition of the great arteries (TGA) is awaiting surgery. Which intervention maintains ductal patency?

Accepted Answer

Prostaglandin E1 (alprostadil) infusion

Answer

PGE1 infusion maintains ductal patency, allowing mixing of oxygenated and deoxygenated blood until corrective surgery can be performed.

Pediatric CCRN Exam Practice Test

Pediatric CCRN Exam Practice Test

Pediatric CCRN Exam Pediatric CCRN Ultimate 2