| Urinary Ca+2 |
| Urinary casts |
| Urinary catheter – infants |
| Urinary catheters |
| Urinary chloride |
| Urinary frequency or urgency |
| Urinary incontinence |
| Urinary incontinence products |
| Urinary LH immunoassays |
| Urinary tract infection |
| Urinary tract infection – associated with a catheter |
| Urinary tract infection – chronic |
| Urinary tract infection – complicated |
| Urinary tract infection – recurrent |
| Urinary tract stones |
| Urination – bed wetting |
| Urination – difficulty with flow |
| Urination – excessive at night |
| Urination – excessive volume |
| Urination – painful |
| Urination – uncontrollable |
| Urine – abnormal color |
| Urine – bloody |
| Urine – citric acid test |
| Urine – hemoglobin |
| Urine – red blood cells |
| Urine 24-hour volume |
| Urine albumin |
| Urine amino acids |
| Urine appearance and color |
| Urine Bence-Jones protein |
| Urine catecholamines |
| Urine chemistry |
| Urine collection – clean catch |
| Urine collection – infants |
| Urine concentration test |
| Urine creatinine test |
| Urine culture – catheterization |
| Urine culture – catheterized specimen |
| Urine culture – clean catch |
| Urine cytology |
| Urine density |
| Urine dermatan sulfate |
| Urine drug screen |
| Urine glucose test |
| Urine heparan sulfate |
| Urine immunoglobulin electrophoresis |
| Urine ketones: acetone, acetoacetic acid, and beta-hydroxybutyric acid |
| Urine melanin |
| Urine metanephrine |
| Urine myoglobin |
| Urine Na+ |
| Urine odor |
| Urine output – decreased |
| Urine pH |
| Urine potassium |
| Urine protein |
| Urine protein – 24 hour |
| Urine protein electrophoresis |
| Urine specific gravity |
| Urine sugar reagent poisoning |
| Urine sugar test |
| Urine urea nitrogen |
| Urine volume |
| Uroflow |
| Uroflowmetry |
| Urological disorders |
| Uropathy – obstructive |
| Uroporphyrin |
| Urticaria |
| Urticaria pigmentosa |
| Usual interstitial pneumonitis |
| Uterine cancer |
| Uterine corpus cancer |
| Uterine fibroids |
| Uterine prolapse |
| Uterosalpingography |
| Uterotubography |
| Uterus retroversion |
| Uterus scraping |
| UTI |
| UTI – acute |
| UTI – associated with a catheter |
| UTI – chronic |
| UTI – recurrent |
| UVC |
| Uvea |
| Uveitis |
| Uvulitis |
