What does high RDW SD and Bilirubin direct mean in blood test?

High RDW SD and Bilirubin direct can be caused by numerous problems.

High levels of RDW SD and Bilirubin direct in the blood indicate a variety of health problems. If your blood RDW SD level is between 39 fL to 46 fL and the Bilirubin direct level is between 0 fL to 0.2 mg/dL, then your body does not have any underlying health problems. But if RDW SD and Bilirubin direct levels exceed these levels, you should see a doctor immediately.

Normal RDW SD range : 39 - 46 fL

Age-wise ideal RDW SD level in blood:

Age	Ideal RDW SD value
<5 years	39.71
5-10 years	40.433
10-15 years	41.169
15-20 years	41.918
20-25 years	42.681
25-30 years	43.458
30-35 years	44.249
35-40 years	45.054
40-45 years	45.874
45-50 years	45.859
50-55 years	45.844
55-60 years	45.828
60-70 years	45.813
70-80 years	45.798
80-90 years	45.783
90-100 years	45.768
>100 years	45.753

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

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

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

If you want your blood test report to be interpreted by RDW SD specialist, you can upload your report. Our RDW SD 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 Bilirubin direct range : 0 - 0.2 mg/dL

Age-wise ideal Bilirubin direct level in blood:

Age	Ideal Bilirubin direct value
<5 years	0.112
5-10 years	0.11404
10-15 years	0.11612
15-20 years	0.11823
20-25 years	0.12038
25-30 years	0.12257
30-35 years	0.1248
35-40 years	0.12707
40-45 years	0.12938
45-50 years	0.13173
50-55 years	0.13413
55-60 years	0.13657
60-70 years	0.13906
70-80 years	0.14159
80-90 years	0.14417
90-100 years	0.14679
>100 years	0.14946

High RDW SD and Bilirubin direct 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 46 fL for RDW SD and more than 0.2 mg/dL for Bilirubin direct, 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 SD and Bilirubin direct test. In most hospitals RDW SD and Bilirubin direct 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.