What is the role of urine studies in the workup of urethritis?

Updated: Dec 12, 2018
  • Author: Martha K Terris, MD, FACS; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

Urinalysis is not a useful test in patients with urethritis, except for helping exclude cystitis or pyelonephritis, which may be necessary in cases of dysuria without discharge. Patients with gonococcal urethritis may have leukocytes in a first-void urine specimen and fewer or none in a midstream specimen. More than 30% of patients with NGU do not have leukocytes in urine specimens.

Many nucleic acid–based tests for C trachomatis and N gonorrhoeae can be performed on urine specimens (see below). These require a first-voided specimen. For Chlamydia species, endourethral samples are more accurate.


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