The cuff

Cuff bladder width ? 40% upper arm circumference most closely approximates intra-arterial readings (Perloff et al, 1993)

Bladder length should be at least 90% of arm circumference to avoid overestimation of BP in children (Vyse TJ, 1987)

Cuff bladder width ? 40% upper arm circumference most closely approximates intra-arterial readings (Perloff et al, 1993)