What does high RBC and RDW SD mean in blood test?
High RBC and RDW SD can be caused by numerous problems.
High levels of RBC and RDW SD 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 RDW SD level is between 39 mil/uL to 46 fL, then your body does not have any underlying health problems. But if RBC and RDW SD levels exceed these levels, you should see a doctor immediately.
Normal RBC range : 4.5 - 5.5 mil/uL
| Age | Ideal RBC value |
|---|---|
| <5 years | 4.68 |
| 5-10 years | 4.867 |
| 10-15 years | 5.062 |
| 15-20 years | 5.264 |
| 20-25 years | 5.475 |
| 25-30 years | 5.466 |
| 30-35 years | 5.458 |
| 35-40 years | 5.449 |
| 40-45 years | 5.44 |
| 45-50 years | 5.432 |
| 50-55 years | 5.423 |
| 55-60 years | 5.414 |
| 60-70 years | 5.406 |
| 70-80 years | 5.397 |
| 80-90 years | 5.388 |
| 90-100 years | 5.38 |
| >100 years | 5.371 |
*Ideal values are calculated based on our database of patient records
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
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Some examples of conditions that increase or decrease RBC levels include:
- Sudden (acute) or chronic bleeding from the digestive tract
- Kidney failure—severe and chronic kidney diseases lead to decreased production of erythropoietin
- Bone marrow damage
- Conditions that cause red blood cells to be destroyed, such as hemolytic anemia caused by autoimmunity or defects in the red cell itself
- Chronic bleeding from the digestive tract
If you want your blood test report to be interpreted by RBC specialist, 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
Normal RDW SD range : 39 - 46 fL
| Age | Ideal RDW SD value |
|---|---|
| <5 years | 40.56 |
| 5-10 years | 42.182 |
| 10-15 years | 43.869 |
| 15-20 years | 45.624 |
| 20-25 years | 45.551 |
| 25-30 years | 45.478 |
| 30-35 years | 45.405 |
| 35-40 years | 45.332 |
| 40-45 years | 45.259 |
| 45-50 years | 45.186 |
| 50-55 years | 45.113 |
| 55-60 years | 45.041 |
| 60-70 years | 44.969 |
| 70-80 years | 44.897 |
| 80-90 years | 44.825 |
| 90-100 years | 44.753 |
| >100 years | 44.681 |
Also Read : Symptoms of High RBC
Also Read : Symptoms of High RDW SD
High RBC and RDW SD 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 46 fL for RDW SD, 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 RDW SD test. In most hospitals RBC and RDW SD 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.
