A blood test to detect who is at higher or lower risk of dying from COVID-19

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blood test

Scientists have put forward a blood test that would detect who are at higher or lower risk of dying from COVID-19 in people.

According to them, everything depends on the size of the red blood cells. The red blood cell distribution width test can determine the size.

Red blood cells or erythrocytes are highly present in cells in the blood. Its main component is hemoglobin.

The main function of red blood cells is to carry oxygen to the different types of tissues throughout the body.

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Nowadays the blood test is useful to diagnose various medical conditions including anemia, heart disease, a blood disorder, and diabetes mellitus.

It was at Harvard University School of Medicine that ten physicians had conducted the new study.

“We were surprised to find that a standard test that quantifies variation in red blood cell size was highly correlated with patient mortality”. The phrase is from Dr. Jonathan Carlson, lead author of the research.

The correlation persisted when controlling other identified risk factors. This includes the patient’s age, some other laboratory tests, and other pre-existing diseases.”

Moreover, the study highlighted several factors. The stress of chronic diseases can affect the body’s ability to maintain the size of red blood cells, is one of them.

How do researchers determine the correlation between red blood cells and risk of dying from COVID-19?

RDW as a percentage:

A figure greater than 14.5% is high. Patients with this range admitted for COVID-19 had a 2.7 times higher risk of dying.

The normality rate was 31%, compared with 11% in patients with normal RDW.