期刊
JOURNAL OF CLINICAL MICROBIOLOGY
卷 40, 期 9, 页码 3482-3484出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JCM.40.9.3482-3484.2002
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To evaluate the efficacy of three sputum acid-fast bacillus (AFB) smears to rule out pulmonary tuberculosis, sputum AFB smear and culture results were analyzed at two university-affiliated teaching hospitals. The negative predictive value of the smear increased by only 0.2% on days 2 and 3 each, indicating that in low-prevalence populations, there is limited value in requiring three negative sputum AFB smears before discontinuing tuberculosis isolation.
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