Loading...
Manufacturers of urine-based nucleic acid amplification tests (NAAT) for Chlamydia trachomatis recommend waiting at least 1 hour after voiding before obtaining specimens for testing. Previous studies, conducted mostly in men with symptomatic infections, suggest that waiting this long is not necessary; whether this applies to screening in asymptomatic individuals (who have lower organism load) is uncertain.
Researchers in Australia collected two urine samples from men (mean age, 26 years) who were recalled to a sexual health center for treatment of laboratory-confirmed (Roche COBAS Amplicor CT/NG PCR assay) urethral C. trachomatis infection. Men with symptoms of urethritis or who had received antibiotic treatment or had voided <60 minutes bef…