Welch Allyn 420 Series - SYMPTOM: Cuff Too Tight (Over Inflation); SYMPTOM: Cuff Pops Off; SYMPTOM: Cuff Deflating Too Slowly

Spot Vital Signs 45
SYMPTOM: Cuff Too Tight (Over Inflation)
SYMPTOM: Cuff Pops Off
SYMPTOM: Cuff Deflating Too Slowly
Possible Cause Explanation and Corrective Action
Pressure Preset too high Check default Pressure Preset setting in internal configuration
mode.
Unless patient has underlying systolic hypertension, set Pres-
sure Preset at 160 mmHg. (If systolic blood pressure greater
than Pressure Preset, the device automatically increases an
additional 40 mmHg.)
Possible Cause Explanation and Corrective Action
Inappropriate cuff size Determine cuff size with the cuff markings or see “Chart for
Determining Cuff Size” on page 29.
If cuff continues to pop off, notify biomedical department or
Welch Allyn Technical Support.
Cuff applied inside out Re- apply cuff. Make sure Welch Allyn label is facing away from
arm.
Possible Cause Explanation and Corrective Action
Normal operation Typical time to take a reading is 20 to 45 seconds. 165 seconds
is the maximum.
Pressure Preset too high Check default Pressure Preset setting in internal configuration
mode.
Patient movement Have patient sit still.
Do not have arm tight against chest wall, as respiration may
affect speed and accuracy of blood pressure measurement.
Small leak in pneumatic system Check cuff and tubing for leaks.