Order Hematocrit Blood Test from JustLabs for $5 ($23 all-in for a single-test order: $5 + one $18 lab & physician order fee per order). Price includes lab processing at Quest Diagnostics. No insurance required.
Hematocrit is the share of your blood volume made up of red blood cells. It drops with anemia and rises with dehydration or when the body makes too many red cells. A full CBC with differential already includes it for just $1 more.
Hematocrit, also called packed cell volume or "crit", is the percentage of your blood made up of red blood cells. Because red cells carry oxygen, hematocrit moves in step with hemoglobin, and the two are read together to check for anemia or for too many red cells (polycythemia).
A low hematocrit can reflect anemia, recent or slow blood loss, or, less often, a bone marrow problem. A high hematocrit is most often caused by dehydration, which concentrates the blood, but can also come from lung disease, some heart conditions or polycythemia, and it runs higher in people who live at high altitude. Pregnancy tends to lower it because blood volume expands.
Hematocrit is included in every complete blood count. The CBC with Differential on JustLabs costs $6 and adds hemoglobin, red cell indices, white cells and platelets, so for a first check or for symptoms it is the better choice. A single hematocrit is useful when one value is being followed, most commonly in people on testosterone therapy, where guidelines recommend checking hemoglobin and hematocrit before treatment and monitoring them during it, or when re-checking a previous high or low result.
No fasting is needed. Visit a Quest Patient Service Center for a quick blood draw, and results are posted to your private JustLabs dashboard, usually within 1-3 business days.
Price
$5
All-in
$23
incl. $18 lab & physician fee
Results
1-3 business days
Fasting
Not Required
What's Measured
What This Test Measures
This test measures the fraction of your whole blood volume taken up by red blood cells, reported as a percentage. Quest notes it is the usual method for determining anemia and is used to calculate red cell indices. It does not measure hemoglobin, red cell size, white cells or platelets, which are reported in a CBC.
Who Should Consider This Test
People on testosterone therapy whose clinician wants hematocrit tracked between visits; people re-checking a previous high or low hematocrit; and people with a known red cell condition who follow this one value. If you are investigating fatigue, shortness of breath or other symptoms, or have not had blood work in a while, choose the full CBC with differential instead.
Health Insights
Conditions Screened
Related Symptoms
When to Get Tested
Any time of day, with no fasting. Be well hydrated, since dehydration is the most common reason for a falsely high hematocrit. If you are on testosterone therapy, follow your clinician's monitoring schedule.
No fasting needed. How to prepare for your blood test →
Understanding Your Results
Quest reports hematocrit as a percentage, with reference ranges printed on your lab report because normal values vary by age and sex; MedlinePlus notes they also vary with smoking status and altitude. A low hematocrit may reflect anemia, injury or chronic blood loss, or a bone marrow condition. A high hematocrit is most commonly due to dehydration, and can also reflect lung disease, congenital heart disease, heart failure or polycythemia; it can also rise during testosterone therapy, which stimulates red cell production. Pregnancy tends to lower hematocrit. An abnormal result does not always mean a condition that needs treatment, and it is usually interpreted with hemoglobin and the rest of the CBC. Review your result with a clinician, especially if you are on testosterone therapy, and do not change a prescribed dose on your own. JustLabs results are informational and do not replace medical care.
What to Expect
After placing your order, we send it straight to Quest Diagnostics — there is no consent form to sign and no partner email to wait for. Your requisition is usually ready to download from your dashboard within about an hour, and you can book your blood draw at any Quest Diagnostics location.
The blood draw typically takes just a few minutes. Results are usually available within 1-3 business days and will appear in your secure JustLabs dashboard.
Our results include reference ranges and easy-to-understand indicators showing whether your values are within normal limits.
How much does the Hematocrit test cost?
The Hematocrit test costs $5 at JustLabs — $23 all-in, since the $18 lab & physician order fee is charged once per order, however many tests you add. The price is fixed before your blood draw; no insurance or doctor visit needed.
| Option | Price | Order all-in | Notes |
|---|---|---|---|
| Hematocrit at JustLabsDrawn at Quest Diagnostics | $5 | $23 | Includes the one $18 fee, charged once per order |
Paying with an HSA or FSA? See which lab tests qualify
Frequently Asked Questions
Hospital cash price: $120–$200
$5
+ $18 order fee · $23 all-inOne $18 fee per order covers your Quest blood draw and the independent physician order, however many tests you add.
- Results in 1-3 business days
- No fasting required
- Physician order included
No insurance needed · HSA/FSA eligible
- Physician-ordered
- CLIA-certified Quest lab
- Drawn at Quest Diagnostics
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