Emergency Medical Technician (EMT) Practice Test

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Prepare for the EMT Test with multiple-choice questions and explanations. Study with flashcards and access detailed resources to enhance your knowledge. Get set for a successful exam experience!

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What does a sphygmomanometer measure?

Blood sugar levels
Heart rate
Blood pressure
Oxygen saturation

The correct answer is: Blood pressure

A sphygmomanometer is a medical instrument specifically designed to measure blood pressure. It consists of an inflatable cuff that is placed around the arm, and as the cuff inflates, it temporarily restricts blood flow. The pressure is then gradually released, and the measurements are taken at two key points: the systolic pressure (when the heart beats and sends blood into the arteries) and the diastolic pressure (when the heart is at rest between beats). Blood pressure is a crucial vital sign that helps determine how well the heart is functioning and the overall condition of the cardiovascular system. Knowing blood pressure levels is essential in diagnosing and managing various health conditions, including hypertension, heart diseases, and other cardiovascular issues.