Why is an HLA-B27 test performed?

An HLA-B27 test may be recommended by your doctor if you have signs or symptoms suggestive of an autoimmune disorder, particularly ankylosing spondylitis or reactive arthritis. The test can provide supportive evidence for these diagnoses.

How is the test performed?

The HLA-B27 test using flow cytometry involves taking a blood sample, which is then prepared and stained with fluorescent markers that bind to the HLA-B27 protein. The sample is then passed through a laser beam inside a flow cytometer. The laser excites the fluorescent markers, allowing the detection and quantification of HLA-B27 positive cells.

I have a positive HLA-B27, does it mean my children will have it too?

HLA-B27 is inherited, so there's a chance your children may also have this antigen. However, not everyone who has HLA-B27 develops health problems.

HLA B-27 Flowcytometry Test, Price, Normal Range

Homocysteine is an amino acid produced by the body, usually as a byproduct of consuming meat. High levels of homocysteine in the urine can indicate a deficiency in the vitamins B6, B12, or folic acid, all of which are used by the body to break down homocysteine. It can also suggest potential kidney problems or a rare genetic disorder called homocystinuria. This test is used to help identify vitamin deficiencies, assess kidney function, and diagnose certain genetic disorders.

Profile Name: Homocysteine, Urine
Sample Type: Urine
Preparations Required: There are no specific instructions for this test. Continue your normal diet and medications unless told otherwise by your healthcare provider.
Report Time: 6 days

The levels of homocysteine in the body are primarily influenced by the diet and by genetic factors. Elevated levels can increase the risk of damage to the arteries, which could result in blood clots, heart disease, and stroke. On the other hand, very low levels of homocysteine are associated with certain neurological conditions, like Parkinson's disease

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Frequently Asked Questions

Why is the Homocysteine, Urine test ordered?

This test may be ordered if you are at a high risk for heart disease or if you have a family history of heart disease. It can also be used to detect deficiencies in vitamins B6, B12, or folic acid.

What does the test involve?

The test involves a simple urine sample. Your healthcare provider will provide instructions on how to properly collect and store the sample.

How should I prepare for the test?

No special preparation is needed for this test. You should continue your normal diet and medications unless instructed otherwise by your healthcare provider.

What do the test results mean?

High levels of homocysteine in the urine can suggest a vitamin B6, B12, or folic acid deficiency, kidney disease, or a rare genetic disorder called homocystinuria. Your healthcare provider will interpret your results based on your medical history and other test results.

How long does it take to get the results?

The turnaround time for this test is typically 3-5 days, but it can vary depending on the laboratory.

Are there any risks associated with the test?

There are no significant risks associated with providing a urine sample for this test.

Can this test detect other health conditions?

Yes, high levels of homocysteine can also be indicative of kidney disease. If your test results are abnormal, your healthcare provider may order further tests to investigate.

Can I take this test at home?

While the urine sample can be collected at home, the sample must be sent to a laboratory for analysis.

Can I eat and drink normally before the test?

Yes, you can continue your normal diet and fluid intake unless your healthcare provider instructs you otherwise.

Is this test only for people with a high risk of heart disease?

While people at high risk of heart disease might benefit from this test, it can also be useful for those with a suspected vitamin deficiency or kidney disease.

Can children take this test?

Yes, children can take this test if recommended by a healthcare provider.

Can pregnant women take this test?

Yes, pregnant women can take this test if deemed necessary by their healthcare provider.

Can I take this test if I am taking dietary supplements?

Yes, you can take this test while taking dietary supplements. However, you should inform your healthcare provider about all supplements you are taking.

How often should I take this test?

The frequency of this test depends on your health condition and the recommendation of your healthcare provider.

Can this test detect vitamin deficiencies?

Yes, high levels of homocysteine in the urine can suggest a deficiency in vitamins B6, B12, or folic acid.

What other tests might be ordered along with this one?

Your healthcare provider may also order a blood test for homocysteine or tests for vitamin B6, B12, or folic acid levels.

What should I do if my test results are abnormal?

If your test results are abnormal, your healthcare provider will discuss the next steps with you. This may include additional testing or changes in your diet or medications.

Can this test be used to monitor my treatment progress?

Yes, this test can be used to monitor your response to treatment for a vitamin deficiency or other conditions that affect homocysteine levels.

What factors can affect my test results?

Factors that can affect your test results include your diet, medications, kidney function, and certain genetic factors.

Can I take this test if I have a urinary tract infection?

If you have a urinary tract infection, it may affect your test results. Inform your healthcare provider about your condition before taking the test.

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Homocysteine, Urine

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