When caring for an infant during cardiac arrest, which pulse must be palpated to determine cardiac function?

GMCH Chandigarh - 2019

Pediatric Nursing

Easy

Appeared in: GMCH Chandigarh - 2019

Explanation

In infants (less than 1 year old), the brachial pulse is the recommended site for assessing cardiac function during an emergency like cardiac arrest.
The brachial artery is easily accessible on the inner aspect of the upper arm and provides a more reliable indication of central circulation compared to peripheral pulses.
Basic Life Support (BLS) guidelines specify the brachial pulse for infants due to the difficulty and risks associated with palpating the carotid pulse in this age group.

Option A: This is incorrect for infants. An infant's short, chubby neck makes the carotid artery difficult to locate. Attempting to palpate it can inadvertently compress the trachea, compromising the airway.
Option C: This is incorrect. The pedal pulse, located on the top of the foot, is a distal peripheral pulse. It is often weak or absent during states of shock or cardiac arrest and is not a reliable indicator of central cardiac function.
Option D: This is incorrect. The radial pulse, located at the wrist, is also a peripheral pulse. Like the pedal pulse, it can be difficult to feel in an infant, especially during a low-flow state, making it an unreliable choice for assessing for cardiac arrest.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pediatric Basic Life Support (BLS) guidelines for pulse assessment in infants as background academic context rather than a clinical decision trigger.
Rapid and accurate pulse assessment is critical in pediatric emergencies. A delay in recognizing pulselessness or severe bradycardia (heart rate less than 60 bpm with poor perfusion) delays the start of chest compressions, worsening outcomes.
The pulse check should not exceed 10 seconds. If no pulse is definitively felt within that time, CPR should be initiated immediately.
What if? If the patient were a 5-year-old child instead of an infant, the correct pulse to palpate would be the carotid or femoral artery, as their neck anatomy is more developed and these central pulses are more easily accessible.

How to Approach the Question

First, identify the patient's age group from the question stem: 'infant'.
Next, identify the clinical context: 'cardiac arrest', which is a life-threatening emergency.
Recall the specific Basic Life Support (BLS) guidelines for pulse assessment in infants. The guidelines differ significantly between infants, children, and adults.
Evaluate the options based on these guidelines. The brachial pulse is the standard for infants.
Eliminate other options by considering the anatomical and physiological reasons they are not recommended for this specific age group and situation (e.g., difficulty of access, unreliability).

Concept Tested & Keywords

Concept Tested: Pediatric Basic Life Support (BLS) guidelines for pulse assessment in infants.
Stem keywords: infant, cardiac arrest, pulse, palpated, cardiac function
Lead-in keywords: which pulse
Clinical cues: The patient is an infant, which requires specific pediatric assessment techniques.

QsvkBWJHSHD9L-bXk3DUrq

E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 18-20