anyone help?

[Waterhouse]

Hi,

wondered whether anybody could help. I had bloods taken, second week of an upper respiratory virus.

Results showed high B12 - 994 ng/l. Reference range was 127-771ng/l. ( this upper range looks low compared to many I’ve seen online?). Folate was 10.6 ug/l.

I take B complex vitamins daily and have for years. I stopped taking them 2 weeks before the test as I had some crawling feelings on my skin. This had happened few years ago and I stopped taking my vitamin then and it seemed to resolve. So I stopped them again.

My GP has marked the result as satisfactory. After googling I am panicking! It seems it could indicate all kinds of awful illnesses.

Is 2 weeks long enough to show an unasked result off supplements. And could bring unwell alter result?

Thanks.

[Nackapan]

Sounds like you are absorbing the b vitamins well!

They csn stay in your system months.

High b12 levels that are high without taking ANY supplements can indicate something else going on as I understand it.

Methylcobalabin can cause problems/side effects in some too.

[Waterhouse in reply to Nackapan]

Thanks for replying. The supplements were oral, I had been taking them for years. I did stop about 14 days before the blood test though. Wonder if the supplements could still affect the test?

[Nackapan in reply to Waterhouse]

Yes. I realised you are taking oral b12

[Marz]

Taking oral B12 will skew your results. In some cases you would need to be off supplements for months so in my opinion not worth the risk of experiencing symptoms.

[Waterhouse in reply to Marz]

Thanks

[FlipperTD]

Scientist, not medic.

In the words of Lance Corporal Joe Jones of Dads Army, 'Don't Panic!'

The upper limit quoted by different sources is irrelevant. In your case I suspect that the '994' is simply the upper limit of detectability using the kit and technology. If I was a bit more up to date I could probably guess which manufacturer they were using.

Go with your GP. 'Satisfactory'. Don't go Googling 'raised B12' and being led down rabbit-holes when the cause of your levels is simply coming out of a blister-pack or bottle!

Merry Christmas.

[Waterhouse in reply to FlipperTD]

Thank you, and Merry Christmas!