What are normal hematocrit test results?
The range for normal tests varies due to age and gender, but the general guidelines are:
- Male: 41% to 50%
- Female: 36% to 44%
For babies, normal results are:
- Newborn: 45% to 61%
- Infant: 32% to 42%
Your doctor will determine what is normal for you or your child.
What if I get a hematocrit result outside of the normal range?
Hematocrit results outside of the normal range, whether low or high, can indicate a serious medical condition. Your healthcare provider can interpret your individual results and come up with the best treatment plan for your underlying condition.
Low hematocrit results can indicate:
- Blood loss
- Leukemia or other bone marrow problems
- Iron and vitamin deficiency, including folate, vitamin B12, and vitamin B6
- Too much water in the body
- Kidney disease
- Thyroid abnormality
- Immune destruction of red blood cells
High hematocrit may be due to:
- Heart disease
- Scarring or thickening of the lungs
- Bone marrow disease
- Obstructive sleep apnea
- Carbon monoxide poisoning
- Testosterone use