99mTc-DTPA or 151Cr-labeled EDTA or iothalamate isotope renal
scan is an alternative method which does not require urine collection.b. TESTS FOR TUBULAR FUNCTIONS:- Urine Acidification Test.
- Urine Concentration Test.
- Urinary B 2 -microglobulin.
- Urinary Enzymes.
- Urinary excretion of sodium (UNa)
B. MICROBIOLOGICAL EXAMINATION OF URINE:
In cases of urinary tract infection, urine specimens are examined
for identification of bacteria as well as for its sensitivity to antibiotics by
culture techniques. Taking a proper urine sample is mandatory to avoid
false results.
A midstream urine sample is required i.e. when the bladder is full,
the first 200 c.c. is passed to clean the urethra. Then, 10 c.c. is taken in a
sterile container from the urine stream. In the male, glans penis should be
cleaned by sterile water, and in the female the vulva is cleaned properly
and during micturition labia are held away by fingers. In neonates and
young children suprapubic aspiration of urine by fine needle is safe.