What does high RDW CV and FT4 thyroid mean in blood test?

High RDW CV and FT4 thyroid can be caused by numerous problems.

High levels of RDW CV and FT4 thyroid in the blood indicate a variety of health problems. If your blood RDW CV level is between 11.6 % to 14 % and the FT4 thyroid level is between 0.89 % to 1.76 ng/dL, then your body does not have any underlying health problems. But if RDW CV and FT4 thyroid levels exceed these levels, you should see a doctor immediately.

Normal RDW CV range : 11.6 - 14 %

Age-wise ideal RDW CV level in blood:

Age	Ideal RDW CV value
<5 years	11.815
5-10 years	12.034
10-15 years	12.257
15-20 years	12.484
20-25 years	12.715
25-30 years	12.95
30-35 years	13.19
35-40 years	13.434
40-45 years	13.683
45-50 years	13.936
50-55 years	13.931
55-60 years	13.927
60-70 years	13.923
70-80 years	13.919
80-90 years	13.915
90-100 years	13.91
>100 years	13.905

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

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

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Some examples of conditions that increase or decrease RDW CV levels include:

• An iron or vitamin deficiency
• Crohn's disease
• Chronic liver disease
• Thalassemia, an inherited blood disorder
• Heart disease

If you want your blood test report to be interpreted by RDW CV specialist, you can upload your report. Our RDW CV 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 FT4 thyroid range : 0.89 - 1.76 ng/dL

Age-wise ideal FT4 thyroid level in blood:

Age	Ideal FT4 thyroid value
<5 years	0.90647
5-10 years	0.92324
10-15 years	0.94032
15-20 years	0.95772
20-25 years	0.97544
25-30 years	0.99349
30-35 years	1.01187
35-40 years	1.03059
40-45 years	1.04966
45-50 years	1.06908
50-55 years	1.08886
55-60 years	1.109
60-70 years	1.12952
70-80 years	1.15042
80-90 years	1.1717
90-100 years	1.19338
>100 years	1.21546

High RDW CV and FT4 thyroid 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 CV and more than 1.76 ng/dL for FT4 thyroid, 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 CV and FT4 thyroid test. In most hospitals RDW CV and FT4 thyroid 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.