In an infant who is unresponsive, which pulse should be checked during circulation assessment?

• A. Brachial pulse
• B. Radial pulse
• C. Carotid pulse
• D. Femoral pulse

Answer: (A)

In an unresponsive infant, the most reliable and practical pulse to check for circulation is the brachial pulse. The brachial artery is readily accessible on the upper arm and its palpation provides a quick, accurate sense of whether perfusion is present in this age group. The radial pulse is often difficult to detect in infants due to the small size of the vessels, making it less reliable for rapid assessment. The carotid pulse is easier to feel in older children and adults, but in infants it can be less dependable to assess quickly and accurately. The femoral pulse, while usable, is deeper and less practical to locate promptly in an emergency.

So, the brachial pulse is the best choice for checking circulation in an unresponsive infant. If no pulse or signs of poor perfusion are found, begin CPR immediately.