Hematocrit -  
What is it and why is it important?

Hematocrit (HCT) is an important value measured during a blood test, providing insight into the proportion of red blood cells (erythrocytes) in the total volume of blood. It is expressed as a percentage and is a key indicator of a person’s health.

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   Importance of hematocrit

2. Hematocrit is an essential part of a complete blood count (CBC) and helps doctors identify various health conditions, including anemia, polycythemia (elevated red blood cell count), and other disorders. A low hematocrit value can indicate insufficient production of red blood cells, while a high value may point to dehydration or certain diseases like polycythemia.
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4. How is hematocrit measured?

Hematocrit is determined through a blood test, where a sample is spun in a centrifuge to separate the blood components. The different parts of the blood – red blood cells, white blood cells, and plasma – settle according to their density. The proportion of red blood cells in the total volume can then be read as a percentage.

Normal hematocrit values

Normal reference values for hematocrit vary based on age, gender, and health condition:

• Adult men: 40-54%
• Adult women: 37-47%
• Newborns: 44-64%
   

Deviations from these values should always be assessed in the context of a comprehensive medical evaluation.

When is Hematocrit measurement necessary?

Hematocrit measurement is often part of a routine blood test or used to diagnose and monitor diseases. It is particularly helpful when symptoms such as fatigue, dizziness, or shortness of breath are present, as it can help determine potential underlying causes.

Conclusion

A healthy hematocrit value is a crucial indicator of overall health and proper circulatory function. Both low and high values can indicate various health conditions and should be evaluated and managed by a medical professional.