A crit test, also called a hematocrit test, belongs to a part of a complete blood count (CBC). It measures the proportion of red blood cells in your blood, thus helping diagnose conditions that may affect RBCs (Red blood cells) and evaluate the effectiveness of treatment.
A crit test should be done if you have signs or symptoms like weakness, fatigue (the possible symptoms of anemia), and dizziness, headache (the possible symptoms of polycythemia).
Generally, normal ranges of crit tests are as follows:
- For males, the normal range is between 38.8% to 50%.
- For females, the normal range is between 34.9% to 44.5%.
Higher levels of crit may indicate dehydration, lung or heart disease, polycythemia vera, etc.
Lower levels of crit may indicate vitamin or mineral deficiencies, recent or long-term blood loss, anemia, infections, leukemia, lymphoma, etc.
Keywords: Crit; Hct; Hematocrit; Packed Cell Volume; PCV