False-Positive Culture Results from Patient Tissue Specimens Due to Contamination of RPMI Medium with Cryptococcus albidus

Title: False Positive Culture Results from Patient Tissue Specimens Due to Contamination of RPMI Medium with Cryptococcus albidus Running title: False Positive Cultures Due to C. albidus Contamination

*Corresponding author: Mailing address: San Francisco General Hospital, 1001 Potrero Avenue, Room 5H22, San Francisco, California 94110 Phone: 415-206-8703 Fax: 415-206-8965 Email: [email protected] AC CE PT ED Copyright © 2007, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved. J. Clin. Microbiol. doi:10.1128/JCM.02447-06 JCM Accepts, published o...

HIV false positive results and Flu vaccination

Abstract False positive results are the major problem influencing interpretation of Clinical Laboratory test. They are originated mostly in the other diseases, technical errors and the recent vaccination. The problem has been presented since 1991 is positive HIV test after influenza Vaccination (1). The False positive has been reported in Cases using Eliza, one of The most common test to screen...

False-positive ODA testing results due to prescription medications .

M any over-the-counter, or OTC, medicines containing pseudoephedrine, ephedrine, or other sympathomimetic amines interfere with screening tests for amphetamines but do not cause positive test results in the gas chromatography/ mass spectrometric, or GC/MS, confirmation, thus pose no serious challenge in drugs-of-abuse (DOA) testing. In contrast, several prescription medicines containing opioid,...

First case of superficial infection due to Naganishia albida (formerly Cryptococcus albidus) in Iran: A review of the literature

Background and Purpose: Naganishia albida (formerly Cryptococcus albidus) is a non-neoformans cryptococcal species rarely isolated as a human pathogen. Case report: Herein, we present the case of a 26-year-old Iranian man with a superficial cutaneous lesion in the axilla. The initial treatment for pityriasis versicolor by clotrimazole was unsuccessful. We performed skin sampling based on the s...

1294Skin Microbiota Contamination Causes False Positive QuantiFERON-TB Results