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DHA Sonographer (DHA-SO) Practice Tests & Test Prep

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DHA DHA-SO Practice Test Features

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DHA Sonographer Sample Test

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Which blood vessel is often used to assess the pulse rate of a patient during cardiopulmonary resuscitation?

Correct Answer:

carotid artery

the question pertains to identifying which blood vessel is typically utilized for checking the pulse rate during cardiopulmonary resuscitation (cpr). the correct answer is the carotid artery.

the pulse rate is an essential indicator of the heart's function and represents the number of heartbeats per minute. checking the pulse helps to determine if the heart is beating and at what rate. during cpr, quickly and accurately assessing the heart’s activity is crucial for making informed decisions about the resuscitation effort.

while the pulse can be measured at various arterial sites throughout the body, including the radial artery at the wrist and the brachial artery in the antecubital fossa or the upper arm, the carotid artery in the neck is most commonly used during cpr. this artery is chosen because it is large and close to the skin's surface, making it easier to feel than some other pulse points. moreover, its proximity to the heart ensures that it can often still be palpated even in severe cardiac events, providing a more reliable indication of heart activity or its absence.

to locate the carotid artery, rescuers place two fingers on the neck beside the trachea (windpipe). pressing gently, they seek the pulsation of the artery, being careful to avoid pressing too hard, which could obstruct blood flow. it is important to check only one side at a time to avoid compromising blood flow to the brain.

other sites like the femoral artery in the groin, the radial artery at the wrist, and the pedal artery in the foot can also be used to assess pulse during cpr, especially in an advanced medical setting or when the carotid pulse is not palpable. however, for immediate, emergency assessment by first responders or bystanders, the carotid artery remains the site of choice due to its accessibility and reliability.