Compressor Cuff

The compressor cuff consists of an inflatable rubber bladder enclosed in an inelastic covering and the pressure source consisting of a rubber hand bulb and pressure control valve. An appropriately sized cuff should cover 2/3 of the biceps; it should have a width that equals at least 40% of the arm’s circumference; and its bladder should be long enough to encircle >80% of the arm.12 Thus, children require smaller cuffs and obese patients require larger cuffs (Table 3).

Table 3. Cuff selection sizing.
Patient Size Arm Circumference Cuff Bladder Size
Child or small adult < 23 cm 12 cm x 18 cm
Standard adult < 33 cm 12 cm x 26 cm
Large adult

 < 50 cm

12 cm x 40 cm