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A blood test showed that i'm B12 deficient. Serum B12 level of 186 pg/ml, should I take vitamin B12 supplements?
B12: this low will likely cause dementia, spinal cord degeneration and peripheral neuropathy. Keep your level above 550 for the rest of your life. Recovery takes about a year in a young person. I suggest you take liquid sublingual weekly for 3 months then bi weekly thereafter. Its important to check a level after you cut back to twice a month. Use 1 1/2 dropper and hold it under the tongue for 30 sec. ...Read moreSee 1 more doctor answer
B12 test: B12 is tested in a blood sample drawn from your arm. The test will report as a concentration of B12 present in blood. Normal values range from 200 to 2000 pg/ml. Even normal values, though, may associate with deficiency of B12. If concern exists, your doctor will order homocysteine blood levels. If homocysteine blood levels are elevated, then a functional B12 deficiency exists that requires B12 Rx ...Read moreSee 1 more doctor answer
No: A B12 test is a blood test, and is done at the same time. ...Read more
Do we ha ve to stop taking vit B12 supplement before taking a vit B12 test? If so how many days before?
Does taking b12 a week before an intrinsic factor blood test cause a false reading? Would it affect a b12 test too?
Depends on the test: The test for intrinsic factor is usually antibody to intrinsic factor and that would not be affected. If the B12 test is measuring the blood level of the vitamin, then that would be affected and yield a higher reading than the baseline, without the B 12 supplement. ...Read moreSee 1 more doctor answer
Depends: It depends on the references in the lab in which it was performed. However, this value is usually borderline low. In this case, we check another blood test for homocysteine and methylmalonic acid levels, which should be elevated in vitamin B12 deficiency. If confirmed, further testing is needed and should be treated. Good luck.. ...Read more