What causes high Vitamin B12 and low Total serum iron?

High Vitamin B12 and low Total serum iron can be caused by many reasons.

If your Vitamin B12 is in between 211 pg/mL and 911 pg/mL and your Total serum iron is in between 40 mcg/dL and 190 mcg/dL then you need not worry as these are the normal ranges for Vitamin B12 and Total serum iron respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of Vitamin B12 : 211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age :

Age	Ideal Vitamin B12 value
<5 years	214.739
5-10 years	218.544
10-15 years	222.417
15-20 years	226.358
20-25 years	230.369
25-30 years	234.451
30-35 years	238.605
35-40 years	242.833
40-45 years	247.136
45-50 years	251.515
50-55 years	255.972
55-60 years	260.508
60-70 years	265.124
70-80 years	269.822
80-90 years	274.603
90-100 years	279.469
>100 years	284.421

*Ideal values are calculated based on our database of patient records

If you want your blood test report to be interpreted by Vitamin B12 specialist, then you can upload your report. Our Vitamin B12 expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease Vitamin B12 levels include:

• Crohn disease
• Ulcerative colitis
• Celiac disease
• Reduced stomach acid production
• Pancreatic insufficiency

If you want your blood test report to be interpreted by Vitamin B12 specialist, you can upload your report. Our Vitamin B12 expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Normal range of Total serum iron : 40 - 190 mcg/dL

Ideal values of Total serum iron depending on age :

Age	Ideal Total serum iron value
<5 years	40.709
5-10 years	41.43
10-15 years	42.164
15-20 years	42.911
20-25 years	43.671
25-30 years	44.445
30-35 years	45.233
35-40 years	46.035
40-45 years	46.851
45-50 years	47.681
50-55 years	48.526
55-60 years	49.386
60-70 years	50.261
70-80 years	51.152
80-90 years	52.058
90-100 years	52.98
>100 years	53.919

High Vitamin B12 and low Total serum iron can be caused by a lot of reasons. If you take Vitamin B12 and Total serum iron blood tests and the results are higher than 911 pg/mL for Vitamin B12 and lower than 40 mcg/dL for Total serum iron, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the Vitamin B12 and Total serum iron Tests Are Done :

If your doctor wants Vitamin B12 and Total serum iron tests on you, you may need to go through these tests. During the Vitamin B12 and Total serum iron blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Vitamin B12 and Total serum iron Test reports by your pathologist.

Medical References

• WebMD – Vitamin B12 Blood Test: Uses, Normal Range, and Results
• NIH – Vitamin B12 - Health Professional Fact Sheet
• MedlinePlus – Vitamin B12 level