This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Pediatrics
Small cuff size will lead to? 
Select and explain. 
A. Falsely increased BP, B. Falsely low BP, C. No effect on BP, D. Fluctuating BP
A: Falsely increased BP
Answer: A: Falsely increased BP 
Explanation: a. Falsely increased BP(Ref: Nelson's 20/e p 2164)In older children, a mercury sphygmomanometer with a cuff that covers approximately two-thirds of the upper part of the arm or leg may be used for blood pressure measurement. A cuff that is too small results in falsely high readings, whereas a cuff that is too large records slightly decreased pressure.