MalfunctionBZM
MEDGRAPHICS PULMONARY FUNCTION
Received Apr 16, 2007 · Event occurred Jan 23, 2007
Report MW5001815 · MDR key 839713
Device
Product problems
- Measurements, inaccurate
- Interference
Patient
YR
- Unknown (for use when the patient's condition is not known)
Narrative
Description of Event or Problem
DURING GAS CHROMATOGRAPH MEASUREMENT OF STUDY, PATIENT'S CELL PHONE RANG. INTERFERED WITH GAS MEASUREMENT, CAUSED SPIKES, CAUSED PREMATURE END OF MEASUREMENT, AND RESULTED IN MEASUREMENT OF 299% OF PREDICTED VALUE FOR STUDY. TEST REPEATED WITH CELL PHONE TURNED OFF, NO FURTHER COMPLICATIONS. ANOMALY WAS RELIABLY REPRODUCED USING A NEXTEL BRAND CELL PHONE -SAME BRAND AS PATIENT. ANOTHER TYPE OF CELL PHONE WAS ALSO CHECKED BUT DID NOT REPRODUCE THIS ANOMALY.