When measuring BP in children, which statement is true?

• A. Use adult cuff; place on upper arm; record using percentile charts
• B. Use age- and size-appropriate cuff; place cuff on upper arm; perform after rest; record using pediatric percentile charts; ensure smaller cuff; positions similar
• C. Measure on the forearm only
• D. Use a cuff on the leg

Answer: (B)

The main idea here is using a measurement approach that matches a child’s size and physiology and interpreting it with pediatric reference standards. In kids, blood pressure varies with age, height, and sex, so you measure on the upper arm with an appropriately sized cuff and then compare the result to pediatric percentile charts that account for those factors. The cuff size matters a lot: if the cuff is too large or too small, the reading won’t reflect the child’s true BP. After giving the child a period of rest to avoid activity-related elevations, you place the cuff on the upper arm with the arm supported at heart level, and you record the value using pediatric percentile norms. This approach ensures the measurement is accurate and the interpretation is meaningful for a child’s age and body size.

Using an adult cuff on a child isn’t appropriate because the cuff’s dimensions don’t fit the child’s arm, leading to inaccurate readings. Measuring on the forearm isn’t standard practice for BP assessment, and placing a cuff on the leg is not how routine pediatric BP is obtained.