An unresponsive infant is need to resuscitation. Which artery would be assessed?

Appeared in: NORCET 5 Prelims - Sept 2023 (Shift-1)

Explanation

In an unresponsive infant (under 1 year of age), the brachial artery is the standard site for pulse assessment during resuscitation.
The brachial artery is chosen because it is a central and easily accessible pulse in infants.
Infants' short, chubby necks make the carotid artery difficult and unreliable to palpate, unlike in older children and adults.

Option B: The radial artery is a peripheral pulse. In a state of shock or cardiac arrest, blood is shunted to the core, making peripheral pulses weak, unreliable, or absent.
Option C: While the femoral artery is a central pulse, it is not the primary recommended site for infants. It can be difficult to locate quickly in a diapered infant during an emergency.
Option D: The carotid artery is difficult to palpate accurately in infants due to their short necks and the presence of subcutaneous fat.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pulse assessment site in an unresponsive infant as background academic context rather than a clinical decision trigger.
Rapid and accurate pulse assessment is a critical skill in pediatric resuscitation. A pulse check should take no more than 10 seconds. If no pulse is definitively felt, CPR should be initiated immediately to minimize delays in perfusion.
What if? If the unresponsive patient was a 6-year-old child instead of an infant, the correct artery to assess would be the carotid or femoral artery. The choice of pulse site is critically dependent on the patient's age.

How to Approach the Question

First, identify the key patient demographic in the question: an 'infant'. This is the most critical piece of information.
Next, note the clinical context: 'unresponsive' and needing 'resuscitation'. This signals an emergency situation where Basic Life Support (BLS) guidelines apply.
Recall the specific BLS algorithms for different age groups (infant, child, adult).
Apply the infant algorithm, which specifies checking the brachial pulse.
Evaluate the incorrect options by recalling when they would be appropriate (e.g., carotid for a child/adult, radial for a conscious patient).

Concept Tested & Keywords

Concept Tested: Pulse assessment site in an unresponsive infant
Stem keywords: unresponsive infant, resuscitation, artery assessed
Lead-in keywords: Which
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
Negative lead-in flag: false

QCs03XYdD5ps4cX94P-6mS

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

Practise the full NORCET 5 Prelims - Sept 2023 (Shift-1)

Attempt every question from this paper in a timed mock, then review the full solution for each one.