Welch Allyn Spot Vital Signs 420 Series User Manual

Measuring Blood Pressure
Blood Pressure Cuff Selection
Note: An adult durable blood pressure cuff is included with your Spot Vital Signs. A full range of cuff
sizes are available as accessory items; however, the adult durable cuff fits the majority of adults
nd gives the most r | r rem rement.
Careful sizing of the cuff is important to the accuracy of blood pressure readings. If the cuff is too
small, you may have falsely high readings. Research has shown that an undersized cuff
overestimates the true blood pressure by as much as 10 to 30 mmHg. If the cuff is too large, you
may have falsely low readings. Please refer to the reference markings on the cuff for correct cuff
sizing. When there is an area of overlap whereby you could use a smaller or larger cuff, it is
strongly recommended that you use the larger size cuff.
You may find that the bottom of the cuff extends to the antecubital fossa (bend in the elbow) on
many people, but because the device uses oscillometric technology, not auscultation, this does
NOT result in an inaccurate blood pressure.
D inin ff Size with th ff Markin
One way to ensure proper cuff size is to wrap the cuff around the patient’s upper arm and visually
check it. The cuff is marked with a distinct white edge and two divisions that indicate “range.”
When the cuff is properly fit, the edge meets the cuff at some point within the range.
Chart for Determining Cuff Size
You can also determine cuff size by measuring the patient's arm circumference midway between
the elbow and shoulder, then use the chart below to select the correct cuff.
. Reusable Two-Piece Cuff Maximum Range Maximum Range
Cuff Size :
(1 per pack) (cm) (in)
Child 4500-01 20.8 8.2
Adult 4500-02 31.5 12.4
Large Adult 4500-03 38.4 15.1
Thigh 4500-04 474 18.7
Spot Vital Signs 31

Welch Allyn Spot Vital Signs 420 Series Specifications

General

Brand	Welch Allyn
Model	Spot Vital Signs 420 Series
Category	Medical Equipment
Language	English