Question 1

is a blood b12 level of 1400 too high?

Accepted Answer

No: It is higher than the lab reference range, but it is fine and nothing to worry about.

Question 2

why would i have high b12 levels in my blood?

Accepted Answer

High intake: Since vitamins, by definition, are substances that we cannot make ourselves, a high level can only come from high intake.  Vitamin B12 is not very toxic, but in high amounts can cause diarrhea, edema and increase risk of clots.  If you are taking a vitamin B12 supplement, or injections you may want to cut back (discuss with your doctor if you are taking under a doctor's supervision).

Question 3

can taking too much b12 elevate blood pressure?

Accepted Answer

B12: B12 won't elevate blood pressure.

Question 4

what is the name of the b12 blood test?

Accepted Answer

Not sure what you: are referring to? Serum vitamin B12 level ? Vitamin B12 Binding Capacity test?

Question 5

my b12 blood level is 154, is this low?

Accepted Answer

Very low: Yes, that is a very low B12 level. You will almost certainly feel much better when you get it up- try to raise it to at least 600. Unless you are following a vegan diet you're probably not absorbing B12 and it would be best to get B12 shots, ideally methylcobalamin or hydroxycobalamin. See http://bit.Ly/1607tg3 and 
http://www.Naturalnews.Com/027045_vitamin_b12_cyanocobalamin_methylcobalamin.Html.

Question 6

can i smoke a cigarette before a b12 blood test?

Accepted Answer

Smoking is: associated with low levels of B12, and also interferes with the absorption of other vitamins, but smoking a cigarette before the blood test won't make a difference. Please consider a lifestyle change regarding smoking, however.

Question 7

in my last blood test, i have high levels of b12 (950mg). what this mean?

Accepted Answer

Diet high in B12: I am not aware of any disease process that results in high levels of b12.  Most light there is an abundance of B12 in your diet or dietary supplement.

Question 8

how useful is a b12 level blood test? is that not just based on what you have recently ingested?

Accepted Answer

Quite useful: If you can't absorb B12 (pernicious anemia, atrophic gastritis, fish tapework, no salivary glands, chronic pancreatitis, others), it'll let you know. Take a big dose and it still won't be super-high because plasma binding capacity is finite. I'm glad you're taking a proactive approach -- when the question is serious disease, trust your physician rather than internet disinformation.

Question 9

should i be concerned about an elevated b12 from blood work that was done. elevated number was 1200?

Accepted Answer

See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, a B12 level of 1200 is not, per se, a cause for concern.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. 
Practice safe sex, if you have sex.

Question 10

what may be the cause for a b12 of 1003 and an aptt level of 35.   i am not on any meds for blood thinning?

Accepted Answer

Supplements?: B12 is minimally increased-diet or supplement can do; not a problem. Ptt slightly up can be due to diet: dark green leafy veg sources and/or supplement. (assuming general good health).

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Doctor answers about:

Too much b12 in blood

A member asked:

Is a blood b12 level of 1400 too high?

A member asked:

Why would i have high b12 levels in my blood?

A member asked:

Can taking too much b12 elevate blood pressure?

A member asked:

What is the name of the b12 blood test?

A member asked:

My b12 blood level is 154, is this low?

A member asked:

Can i smoke a cigarette before a b12 blood test?

A member asked:

In my last blood test, i have high levels of b12 (950mg). what this mean?

A member asked:

How useful is a b12 level blood test? is that not just based on what you have recently ingested?

A member asked:

Should i be concerned about an elevated b12 from blood work that was done. elevated number was 1200?

A member asked:

What may be the cause for a b12 of 1003 and an aptt level of 35. i am not on any meds for blood thinning?

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