If a vital sign is abnormal, what should you do?

• A. Ignore it
• B. Recheck later
• C. ALWAYS recheck
• D. Notify supervisor

Answer: (C)

When a vital sign is abnormal, the first and most important step is to recheck right away to confirm the reading. Readings can be inaccurate due to common measurement issues like using the wrong cuff size, poor arm position, movement, talking during the measurement, or device calibration problems. By rechecking with proper technique—proper cuff size and placement, the patient at rest, the limb supported—you verify whether the abnormal value is real or a measurement artifact. If the second measurement remains abnormal, follow the appropriate clinical steps per protocol (such as notifying a supervisor or clinician and taking further assessment). Ignoring the abnormal value or postponing the recheck risks missing a true deterioration, while escalating after confirmation ensures appropriate care.