Which event signals the systolic blood pressure during manual measurement?

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Multiple Choice

Which event signals the systolic blood pressure during manual measurement?

Explanation:
The key idea is that systolic pressure is identified by the first appearance of Korotkoff sounds as you deflate the cuff. When the cuff is inflated, no sound is heard. As you release pressure, blood begins to flow through the partially compressed artery, creating a tapping sound—the first Korotkoff sound. That moment corresponds to the systolic pressure. The sounds continue, change in character, and eventually disappear; the last sound marks diastolic pressure, with silence following. So the first Korotkoff sound is the signal for the systolic reading.

The key idea is that systolic pressure is identified by the first appearance of Korotkoff sounds as you deflate the cuff. When the cuff is inflated, no sound is heard. As you release pressure, blood begins to flow through the partially compressed artery, creating a tapping sound—the first Korotkoff sound. That moment corresponds to the systolic pressure. The sounds continue, change in character, and eventually disappear; the last sound marks diastolic pressure, with silence following. So the first Korotkoff sound is the signal for the systolic reading.

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