Methionine Quantitative Urine Spot Test

This test measures the levels of methionine in your urine. 

• This test is done to detect and monitor metabolic disorders or inborn errors of metabolism that can impact the body's ability to break down proteins.
• It is also used to evaluate treatment effectiveness and monitor amino acid supplementation.

Your doctor might recommend this test if

• You have a suspicion or provisional diagnosis of a metabolic disorder or inborn error of metabolism.
• You have symptoms like delayed growth, intellectual disability, skin rashes, seizures, or vomiting.

This test is also part of routine screening for newborns to check for these conditions.

Elevated methionine levels may indicate metabolic disorders or inborn errors of metabolism, such as homocystinuria or cystathioninuria. 

During this non-invasive test, you will have to provide a small sample of urine in a sterile container provided by the lab. 

There are no specific preparations required for this test. However, you should inform your doctor of any medications or supplements you are taking that could interfere with the accuracy of the test. It is advisable to consult your healthcare provider to determine if there are any particular requirements you should be aware of.

Other tests that may be ordered alongside the Methionine Quantitative Urine Spot test include plasma amino acid analysis, urine organic acid analysis, and complete blood count.

Methionine quantitative in urine, methionine urine test

Homocystinuria is a rare inherited disorder that affects the body's ability to break down certain amino acids such as methionine. This can lead to a buildup of homocysteine and cause serious health problems like blood clots, intellectual disability, and eye problems.