Questions: You receive a call to a daycare center for an unresponsive 8-month-old infant. Upon arrival, you perform an assessment and determine that the infant is not breathing. Your next action should be to: Select one: A. assess for a brachial pulse for 5 to 10 seconds. B. begin chest compressions and request backup. C. immediately transport the child to the hospital. D. open the airway and give two rescue breaths.

The answer is the first one (or A): assess for a brachial pulse for 5 to 10 seconds.

Explanation for each option: A. Assess for a brachial pulse for 5 to 10 seconds - Correct. According to pediatric basic life support (BLS) guidelines, if an infant is unresponsive and not breathing, the next step is to check for a pulse (brachial pulse in infants) for no more than 10 seconds to determine if the heart is still beating.

B. Begin chest compressions and request backup - Incorrect. While chest compressions are crucial if there is no pulse, the first step after determining the infant is not breathing is to check for a pulse to decide if compressions are necessary.

C. Immediately transport the child to the hospital - Incorrect. Immediate transport is not the first step. Initial assessment and intervention (such as checking for a pulse and starting CPR if needed) should be performed on the scene.

D. Open the airway and give two rescue breaths - Incorrect. While rescue breaths are important, the first step after determining the infant is not breathing is to check for a pulse to guide further actions.

Summary: The correct next action after determining that the infant is not breathing is to assess for a brachial pulse for 5 to 10 seconds.