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Urinalysis is used to look for metabolic and kidney disorders
On admission to a hospital; preparation for surgery; as part of a medical examination; or when evaluating a new pregnancy. It may be done if you have stomach or back pain, frequent or painful urination, or blood in the urine
Sample of urine (20-50 mls) in a sterile container
This test identifies and measures the byproducts of normal and abnormal metabolism, that are eliminated from your body in urine.
Urinalysis consists of two distinct testing phases:
A routine urinalysis consists of both the chemical and microscopic examinations.
Urine for urinalysis can be collected at any time. The first morning sample is the most valuable because it is more concentrated and more likely to yield abnormal results.
Because of the potential (particularly in women) to contaminate urine with bacteria and cells from the surrounding skin, it is important to first clean the genitalia. Men should wipe the tip of the penis; women should spread the labia of the vagina and clean from front to back.
As you start to urinate, let the urine fall into the toilet, then collect a sample of urine in the container provided.
Urinalysis is used as a screening and/or diagnostic test that can detect a number of different metabolic and kidney disorders. In some conditions, it also provides an easy, economical, and relatively fast test to monitor ongoing progress when you want to know whether a condition is getting better or worse. However, a urinalysis cannot detect all disorders.
A routine urinalysis may be done when you visit your doctor, attend an outpatient clinic or when you are admitted to hospital. It can also be part of a routine medical examination, a new pregnancy evaluation or preparation for a surgical procedure. It will most likely be performed if you see your doctor complaining of stomach pain, back pain, painful or frequent urination, or blood in the urine. This test can also be useful in monitoring whether a condition is getting better or worse.
Urinalysis results can have many interpretations. Having normal urinalysis results does not necessarily mean there is no illness. Urinalysis is only one screening test that can provide a general overview of someone's health. Your doctor must correlate the urinalysis results with your symptoms and overall health.
Conditions: pregnancy, kidney disease, proteinuria
Last Review Date: March 19, 2016