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Hematocrit

BloodHCTHt

The fraction of blood made up of red cells, shown as a percentage. It tends to run higher at altitude as the body adapts to thinner air.

Also known as: Haematocrit

Unit conversion

Read a row as “1 of this unit equals…”.

1 …%L/L
%0.01
L/L100

Convert your own value

0.01 L/L

LOINC code

4544-3

Track Hematocrit over time

Upload a lab report and Metron reads this marker out of it, converts the units, and charts it alongside the rest.

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Related markers

Informational only. Metron is not a medical device, and nothing here is medical advice or a diagnosis. Reference ranges differ between laboratories — read the ranges printed on your own report, and talk to a clinician about what your numbers mean.