What does high Vitamin B12 and RDW mean in blood test?

High Vitamin B12 and RDW can be caused by numerous problems.

High levels of Vitamin B12 and RDW in the blood indicate a variety of health problems. If your blood Vitamin B12 level is between 211 pg/mL to 911 pg/mL and the RDW level is between 11.6 pg/mL to 14 %, then your body does not have any underlying health problems. But if Vitamin B12 and RDW levels exceed these levels, you should see a doctor immediately.

Normal Vitamin B12 range : 211 - 911 pg/mL

Age-wise ideal Vitamin B12 level in blood:

Age	Ideal Vitamin B12 value
<5 years	214.815
5-10 years	218.699
10-15 years	222.653
15-20 years	226.679
20-25 years	230.777
25-30 years	234.949
30-35 years	239.197
35-40 years	243.522
40-45 years	247.925
45-50 years	252.407
50-55 years	256.971
55-60 years	261.617
60-70 years	266.347
70-80 years	271.163
80-90 years	276.066
90-100 years	281.057
>100 years	286.139

*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 RDW range : 11.6 - 14 %

Age-wise ideal RDW level in blood:

Age	Ideal RDW value
<5 years	11.81
5-10 years	12.024
10-15 years	12.241
15-20 years	12.462
20-25 years	12.687
25-30 years	12.916
30-35 years	13.15
35-40 years	13.388
40-45 years	13.63
45-50 years	13.876
50-55 years	13.872
55-60 years	13.868
60-70 years	13.864
70-80 years	13.86
80-90 years	13.856
90-100 years	13.852
>100 years	13.847

High Vitamin B12 and RDW levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 911 pg/mL for Vitamin B12 and more than 14 % for RDW, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a Vitamin B12 and RDW test. In most hospitals Vitamin B12 and RDW results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.