What should you do if you detect an auscultatory gap?

What should you do if you detect an auscultatory gap?

• A. Inflate above the first sound, re-check after deflation, and consider palpation to estimate SBP; document the gap
• B. Ignore the gap
• C. Stop the measurement
• D. Switch to thigh measurement

Answer: (A)

An auscultatory gap is a period during cuff deflation when the Korotkoff sounds disappear, which can cause a falsely low systolic reading if you rely on the first sound alone. To avoid underestimating SBP, inflate the cuff to a pressure well above where you first hear sounds, then deflate and recheck to capture the true systolic pressure after the gap. If needed, use palpation to estimate SBP when sounds are unreliable, and make sure to document the gap in the record. Ignoring the gap, stopping measurement, or switching to thigh measurement don’t address the issue and can lead to inaccurate results.

An auscultatory gap is a period during cuff deflation when the Korotkoff sounds disappear, which can cause a falsely low systolic reading if you rely on the first sound alone. To avoid underestimating SBP, inflate the cuff to a pressure well above where you first hear sounds, then deflate and recheck to capture the true systolic pressure after the gap. If needed, use palpation to estimate SBP when sounds are unreliable, and make sure to document the gap in the record. Ignoring the gap, stopping measurement, or switching to thigh measurement don’t address the issue and can lead to inaccurate results.