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

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

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

Normal RDW range : 11.6 - 14 %

Age-wise ideal RDW level in blood:
Age Ideal RDW value
<5 years 12.243
5-10 years 12.921
10-15 years 13.637
15-20 years 13.595
20-25 years 13.553
25-30 years 13.512
30-35 years 13.471
35-40 years 13.429
40-45 years 13.388
45-50 years 13.347
50-55 years 13.306
55-60 years 13.265
60-70 years 14
70-80 years 13.957
80-90 years 13.914
90-100 years 13.871
>100 years 13.828

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

Your RDW result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High RDW

Click here to know Symptoms of High Vitamin B12

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Can Low or High RDW cause Heart Attack? Click here to know

Normal Vitamin B12 range : 211 - 911 pg/mL

Age-wise ideal Vitamin B12 level in blood:
Age Ideal Vitamin B12 value
<5 years 222.689
5-10 years 235.026
10-15 years 248.046
15-20 years 261.788
20-25 years 276.291
25-30 years 291.598
30-35 years 307.753
35-40 years 324.803
40-45 years 342.797
45-50 years 361.788
50-55 years 381.831
55-60 years 402.984
60-70 years 425.309
70-80 years 448.871
80-90 years 473.738
90-100 years 499.983
>100 years 527.682

Click here to know Symptoms of High RDW

Click here to know Symptoms of High Vitamin B12

Can Low or High RDW cause Heart Attack? Click here to know

Click here to upload your blood test report

Click here to consult a doctor for your Low RDW problem

High RDW and Vitamin B12 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 14 % for RDW and more than 911 pg/mL for Vitamin B12, 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 RDW and Vitamin B12 test. In most hospitals RDW and Vitamin B12 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.

Click here to upload your blood test report

Click here to consult a doctor for your Low RDW problem

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