U

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UNSTABLE HAEMOGLOBIN SCREENING TEST - blood
URATE - plasma or serum
URATE - urine
UREA - plasma or serum
UREA - urine
UREASE TEST - breath
UREASE TEST - gastric or duodenal mucosa
URETHRAL SWAB
URINALYSIS
URINE ACIDIFICATION TEST
URINE CULTURE
URINE CYTOLOGY
URINE MICROSCOPY AND CULTURE
UROBILINOGEN - urine
UROPORPHYRINOGEN DECARBOXYLASE - red cells
UROPORPHYRINOGEN SYNTHETASE