What does high Prothrombin time and Vitamin B12 mean in blood test?

High Prothrombin time and Vitamin B12 can be caused by numerous problems.

High levels of Prothrombin time and Vitamin B12 in the blood indicate a variety of health problems. If your blood Prothrombin time level is between 12 seconds to 16 seconds and the Vitamin B12 level is between 211 seconds to 911 pg/mL, then your body does not have any underlying health problems. But if Prothrombin time and Vitamin B12 levels exceed these levels, you should see a doctor immediately.

Normal Prothrombin time range : 12 - 16 seconds

Age-wise ideal Prothrombin time level in blood:

Age	Ideal Prothrombin time value
<5 years	12.162
5-10 years	12.327
10-15 years	12.494
15-20 years	12.663
20-25 years	12.834
25-30 years	13.008
30-35 years	13.184
35-40 years	13.363
40-45 years	13.544
45-50 years	13.727
50-55 years	13.913
55-60 years	14.101
60-70 years	14.292
70-80 years	14.486
80-90 years	14.682
90-100 years	14.881
>100 years	15.082

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

If you want your blood test report to be interpreted by Prothrombin time specialist, then you can upload your report. Our Prothrombin time 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 Prothrombin time levels include:

• Liver disease
• Vitamin K abnormality
• Hemophilia A and hemophilia B
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Willebrand disease

If you want your blood test report to be interpreted by Prothrombin time specialist, you can upload your report. Our Prothrombin time 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 Vitamin B12 range : 211 - 911 pg/mL

Age-wise ideal Vitamin B12 level in blood:

Age	Ideal Vitamin B12 value
<5 years	213.857
5-10 years	216.753
10-15 years	219.688
15-20 years	222.663
20-25 years	225.678
25-30 years	228.734
30-35 years	231.831
35-40 years	234.97
40-45 years	238.151
45-50 years	241.376
50-55 years	244.644
55-60 years	247.956
60-70 years	251.313
70-80 years	254.716
80-90 years	258.165
90-100 years	261.661
>100 years	265.204

High Prothrombin time 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 16 seconds for Prothrombin time 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 Prothrombin time and Vitamin B12 test. In most hospitals Prothrombin time 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.