Did a write up on how Biotin can interfere with a lab test. Here is the visual proof. You may want to read this first;
https://www.eroids.com/forum/general/general-talk/dont-get-eaten-by-the-...
Little back ground. I was feeling out of sorts and was having all kinds of symptoms this past summer. So I ran bloods end of June. I have not run any compounds in a couple of yrs any way as you can see on the 1st test in June my labs showed a problem with RBC indices. RBC was out of wack and elevated. It can be caused by a number of things but a deficiency of b-12, folate, or both is usually the culpirt. I started supplementing with a liquid b complex that had 1000 mcg of b-12 and added 400 mcg of folate. After 6 wks of supplements my symptoms were getting worse. Ran an anemia test which came back positive for low b-12 <150pg/ml. although my RBC numbers had improved I was still having major symptoms. Still bruising easily, fatigue, hands and limbs going numb,hair loss, brain fog, memory loss, neuropathy,vision problems. Couldn't see my regular physician quick so i made an appt with his PA. Based on my labs was given a B-12 injection on the spot. Took a total of 8 additional injections 1 per day. Major symptoms improved. Then no b-12 for the next roughly 3 wks. Ran bloods b-12 now back in range with folate elevated. Stopped the folate. I had a follow up with the PA but didn't keep the appt as I had an appt with my regular Dr 2 months later. Started taking Biotin 5mg (5000mcgs)for hair loss that did not improve with the previous supplementation of b12. B-12 injections 2 times over the next 53 days. Ran bloods that my Dr wanted but also ran testosterone test as I still wasn't 100%. As you can see RBC is back to normal but b-12 is now super elevated and out of range. Biotin interference. Testosterone which I hadn't tested in about 2 yrs which at that time it was 375ng/dL is now flagged at 923 ng/dL. No freakin way that is correct. LH and FSH are the highest I've ever had on a blood test.So again interference. Doc sent me to a lab ran a test verdict Pernicious Anemia. Impaired uptake of vitamin B-12 due to the lack of a substance known as intrinsic factor (IF) produced by the stomach lining go figure. Given script for pharma b12. One injection every 30 days.