Hemogram and Differential Test
The hemogram and differential measures the cellular components of whole blood, including a breakdown of white blood cell types. Quest describes it as a screening test used for conditions such as anemia, leukemia, and inflammatory processes.
About this test
This test reports the same red blood cell values as a hemogram, including red blood cell count, hemoglobin, hematocrit, and related indices, and adds a white blood cell differential: the breakdown of white blood cell types such as neutrophils, lymphocytes, monocytes, eosinophils, and basophils, along with their absolute counts.
The whole blood sample is collected in an EDTA (lavender-top) tube and analyzed using electronic cell sizing, sorting, cytometry, and microscopy. Quest describes this panel as a screening test used for conditions such as anemia, leukemia, and inflammatory processes, and results are read by a clinician together with a person's history and symptoms rather than on their own.
Who might consider this test?
- Often the starting point when a clinician is investigating symptoms that could relate to infection
- Another blood-related condition
Test details
| Quest code | 7210 |
|---|---|
| Methodology | Electronic Cell Sizing, Sorting/Cytometry/Microscopy |
| Sample type | Whole blood |
| Collection | Quest patient service center |
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Additional details
What this test looks at
The test reports the standard red blood cell values, such as hemoglobin, hematocrit, and red blood cell count, along with a white blood cell differential that breaks white blood cells into types, including neutrophils, lymphocytes, monocytes, eosinophils, and basophils, with both percentages and absolute counts. Quest describes the panel as a screening test used for conditions such as anemia, leukemia, and inflammatory processes.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does a hemogram and differential measure?
It measures the standard blood count values, such as hemoglobin and hematocrit, plus a white blood cell differential that breaks white blood cells into types with their counts.
How is the sample collected?
Through a routine blood draw, collected in an EDTA (lavender-top) tube for whole blood testing.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
What is the difference between a hemogram and a hemogram with differential?
The differential adds a breakdown of white blood cell types and their counts on top of the standard blood cell values a hemogram reports.
What is this test used for?
Quest describes it as a screening test used for conditions such as anemia, leukemia, and inflammatory processes, read in context by a clinician rather than used for diagnosis on its own.
How much is a Hemogram and Differential test?
$15, paid once at checkout. The price includes the physician's order this test requires and sample collection at a Quest patient service center.