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

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

High levels of RBC and Vitamin B12 in the blood indicate a variety of health problems. If your blood RBC level is between 4.5 mil/uL to 5.5 mil/uL and the Vitamin B12 level is between 211 mil/uL to 911 pg/mL, then your body does not have any underlying health problems. But if RBC and Vitamin B12 levels exceed these levels, you should see a doctor immediately.

Normal RBC range : 4.5 - 5.5 mil/uL

Age-wise ideal RBC level in blood:
Age Ideal RBC value
<5 years 4.673
5-10 years 4.852
10-15 years 5.038
15-20 years 5.231
20-25 years 5.432
25-30 years 5.424
30-35 years 5.416
35-40 years 5.408
40-45 years 5.4
45-50 years 5.392
50-55 years 5.384
55-60 years 5.376
60-70 years 5.368
70-80 years 5.36
80-90 years 5.352
90-100 years 5.345
>100 years 5.337

If you want your blood test report to be interpreted by RBC specialist, then you can upload your report. Our RBC 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 RBC result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High RBC

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 RBC 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 219.102
5-10 years 227.516
10-15 years 236.253
15-20 years 245.325
20-25 years 254.745
25-30 years 264.527
30-35 years 274.685
35-40 years 285.233
40-45 years 296.186
45-50 years 307.56
50-55 years 319.37
55-60 years 331.634
60-70 years 344.369
70-80 years 357.593
80-90 years 371.325
90-100 years 385.584
>100 years 400.39

Click here to know Symptoms of High RBC

Click here to know Symptoms of High Vitamin B12

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

Click here to upload your blood test report

Click here to consult a doctor for your Low RBC problem

High RBC 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 5.5 mil/uL for RBC 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 RBC and Vitamin B12 test. In most hospitals RBC 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 RBC problem

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