MMA Urine Test
After reading the details on your website, I want to get a "Methylmalonic Acid" (MMA) test done to confirm my B12 deficiency and read it together with my B12 and Hcy levels.
I am able to get the MMA test from a lab in another city. And they only do a Urine Test (Qualitative).
I would appreciate it if you could let me know:
1) Is the urine test as reliable as the blood test?
2) What does "qualitative" mean? I have read "quantitative" next to blood tests. Does that mean they won't give me a normal range and an exact level of MMA found in the urine?
3) It may take hours for the urine to reach the lab. Wouldn't that make the test useless? I have read somewhere that the "stability" for MMA urine test is 2 hours only.