This is an automatically translated article.
Blood test is always an indispensable indication in every general health checkup, because blood test results can reflect your own health status. A complete blood count test can help your doctor diagnose problems, such as disorders, infections, or disorders of the immune system. In a blood test with an RDW index, what is an RDW blood cell and what is the meaning of the RDW index in a blood test, the article will help readers answer this question.
1. What is the RDW in a blood test?
RDW stands for the English phrase Red cell Distribution With which means red blood cell distribution.
RDW test to test, check for changes in red blood cell size and shape.
In normal people, the RDW index in a blood test ranges from 9 to 15%.
If the RDW blood cell is lower or higher than 9-15%, then the body is having problems.
The higher the RDW value, the more altered the red blood cell distribution.
In RDW blood cells, there are 2 types, RDW-SD and RDW-CV, in which:
RDW-SD to give true volume parameter
RDW-CV gives % value.
Reference value range of 2 parameters:
RDW-SD: 29-46 fL
RDW-CV: 11.6 – 14.6% (for adults)
2. How does the relationship between MCV red blood cell size and RDW blood cells affect the body?
Chỉ số RDW bình thường và MCV cao có thể cho thấy bệnh nhân bị thiếu máu bất sản
MVC means mean corpuscular volume representing the average size of red blood cells. Based on RDW and MCV, doctors can diagnose abnormalities in the body.
In normal people, the average size of MCV red blood cells is usually between 80 - 96 fL.
When testing blood, if the RDW in the blood test is normal but the MCV is not within the acceptable range, it may indicate that the patient has health problems.
Normal RDW distribution and low MCV The patient may have chronic anemia, heterozygous halassemia, or hemoglobin E.
Normal RDW and high MCV: The patient may have chronic liver disease or have aplastic anemia. The cause may be because the patient is taking antiretroviral drugs, using a lot of alcohol such as alcohol, or undergoing chemotherapy.
High RDW and low MCV Initial diagnosis may be sickle cell anemia, iron deficiency anemia.
High RDW and high MCV If both the RDW and MCV are high, the patient may have immune hemolytic anemia, myelodysplastic syndrome, folate deficiency, or severe vitamin B12 deficiency. Have liver disease or are on chemotherapy.
High RDW, normal MCV Test if the RDW is high but MCV is normal, it is more likely that the patient has sickle cell disease, chronic liver disease or myelodysplastic syndrome. Other problems can be the early stages of folate, vitamin B12 deficiency. It is also possible that the patient has dimorphic anemia.
Normal RDW and normal MCV If blood test results have normal RDW and normal MCV, it is not necessarily okay because both of these indicators are normal, there is still a possibility that the patient has chronic anemia anemia due to kidney disease. Therefore, it is necessary to look at other blood indicators to evaluate the most accurate way.
3.Notes to remember before taking blood for testing
To take blood for testing, it should be noted:
Do not take medication before doing blood test: You need to notify your doctor to find a solution. There are a number of oral drugs that do not affect the blood results, the patient can still have blood drawn. Fasting: Most doctors' blood tests require fasting for 8-12 hours for the most accurate results. Do not use stimulants before taking blood such as drinking alcohol, coffee, smoking...
Trước khi lấy máu xét nghiệm bệnh nhân thường cần phải nhịn ăn trong vòng 8 – 12 giờ
4.Process of taking blood to test blood indicators
The medical staff uses a small needle to draw blood from the arm. The amount of blood taken is enough for the test. The blood sample is taken to the laboratory, after 60-90 minutes, the blood test results will be available. The blood numbers in the results will be viewed and read by your doctor, including the RDW blood cell results. Vinmec International General Hospital is one of the hospitals that not only ensures professional quality with a team of leading doctors, modern equipment and technology, but also stands out for its examination and consulting services. and comprehensive, professional medical treatment; civilized, polite, safe and sterile medical examination and treatment space. Customers when choosing to perform tests here can be completely assured of the accuracy of test results.
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