Korotkoff sounds are best described as which point during measurement?

• A. The first two consecutive beats, representing systolic pressure
• B. The last sounds heard before diastole
• C. The absence of any sound during cuff deflation
• D. The sound heard across the epigastric area

Answer: (A)

Korotkoff sounds mark the point at which blood begins to flow turbulently again as the cuff deflates. The first appearance of these tapping sounds corresponds to the systolic pressure, and clinicians often rely on the first two consecutive audible taps to confirm that this is a true onset rather than noise. As deflation continues, sounds persist and then eventually disappear, which relates to diastolic pressure being reached when the sounds cease. The option describing the first two consecutive beats aligns with identifying the systolic pressure, making it the best choice. The other statements describe later phases (diastolic or silence) or locations that aren’t the basis for measuring systolic pressure.