WordNet (r) 3.0 (2006):

urinalysis
    n 1: (medicine) the chemical analysis of urine (for medical
         diagnosis) [syn: urinalysis, uranalysis]

Moby Thesaurus II by Grady Ward, 1.0:

25 Moby Thesaurus words for "urinalysis":
   Pap test, anatomic diagnosis, biological diagnosis, biopsy,
   clinical diagnosis, cytodiagnosis, diagnosis,
   differential diagnosis, digital examination, electrocardiography,
   electroencephalography, electromyography, examination,
   laboratory diagnosis, mammography, oral examination,
   physical diagnosis, physical examination, postmortem diagnosis,
   serodiagnosis, smear, study, test, uroscopy, work-up