Use of a disposable water filter for prevention of false-positive results due to nontuberculosis mycobacteria in a clinical laboratory performing routine acid-fast staining for tuberculosis.
A point-of-use 0.2-microm filter was evaluated for elimination of nontuberculosis mycobacteria in laboratory water to reduce false-positive acid-fast bacillus staining results. Use of the point-of-use filter can significantly reduce the false-positive rate to 1.2% compared to samples treated with tap water (10.7%) and deionized water (8.7%).
Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Hui-Zin
HZ
Tu
Chiao-Shan
CS
Chen
Tsi-Shu
TS
Huang
Wen-Kuei
WK
Huang
Yao-Shen
YS
Chen
Yung-Ching
YC
Liu
Yusen Eason
YE
Lin
D019411:Clinical Laboratory Techniques; D003428:Cross Infection / Q000382:microbiology / Q000517:prevention & control; D004209:Disposable Equipment / Q000592:standards*; D005189:False Positive Reactions; D005374:Filtration / Q000295:instrumentation* / Q000592:standards; D009161:Mycobacterium / Q000235:genetics / Q000302:isolation & purification; D013194:Staining and Labeling; D014376:Tuberculosis / Q000175:diagnosis* / Q000382:microbiology; D014867:Water; D014871:Water Microbiology; D018508:Water Purification / Q000295:instrumentation* / Q000592:standards
D014867:Water