What is this test?
This laboratory test is performed on a urine sample to measure the levels of phosphate in the urine. Phosphate plays an important role in building strong bones and teeth, and also helps in proper nerve functioning. High levels of phosphate in urine may indicate a kidney disease because kidney balances the level of phosphate in the body.
Why is this test performed?
This test is performed:
- To measure the phosphate levels excreted out of the body
- To help in the diagnosis of kidney diseases
- To help in the diagnosis of kidney stones
- To help in the diagnosis of endocrine disorders.
- What are the symptoms of low phosphate levels?
- Fatigue
- Muscle cramps
- Joint pain
- Loss of appetite
- How to prepare for this test?
No special preparations are required for this test. Inform your doctor about your complete medical and drug history before the test.
- How to take the sample?
- Clean your hands and genitals
- Pour mid-stream urine in a sterile container
- Avoid contact of container with genitals
- Wash your hands properly.
- Is this test painful?
No, this test will feel like urinating normally but in a container. It is painless.
- What factors might affect my test results?
- Age
- Gender
- Pregnancy
- Diet
- Exercise.
- Interpretation of test results:
Causes of high urine phosphate levels:
- Kidney disease
- Hyperparathyroidism
- Vitamin D toxicity
Causes of low urine phosphate levels:
- Kidney disease
- Liver disease
- Alcoholism
- Malnutrition
- Diabetic ketoacidosis
- Osteomalacia.