Hemoglobin and Hematocrit

Hemoglobin and Hematocrit

Test Code

7998
85014, 85018
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
7998
85014, 85018
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Not offered in Quest Nichols Institute - Chantilly, VA | Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Hemoglobin and Hematocrit - Usual method for determining anemia. Used to calculate indices.

Test Resources

None found for this test
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Test Details

Methodology

Electronic Cell, Sizing/Cytometry/Microscopy

Reference Range(s)

See individual tests

Alternative Name(s)

Hgb,HCT and HGB

LOINC® Codes, Performing Laboratory

Methodology

Electronic Cell, Sizing/Cytometry/Microscopy

Reference Range(s)

See individual tests

Alternative Name(s)

Hgb,HCT and HGB

Preferred Specimen(s)

Whole blood from a full EDTA (lavender-top) tube

Alternative Specimen(s)

Whole blood from a full EDTA (tan-top) tube

Minimum Volume

Microtainer 0.5 mL • 1 mL whole blood EDTA tube

Collection Instructions

Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets.

Note: If drawn with lead testing, EDTA (tan-top) is required.

Transport Container

EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

  • Room temperature: 48 hours
  • Refrigerated: 48 hours (may cause platelet clumping)
  • Frozen: Unstable

Reject Criteria

Gross hemolysis • Clotted • Received frozen

Setup Schedule

Whole blood from a full EDTA (lavender-top) tube
Whole blood from a full EDTA (tan-top) tube
Microtainer 0.5 mL • 1 mL whole blood EDTA tube
Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets.

Note: If drawn with lead testing, EDTA (tan-top) is required.
EDTA (lavender-top) tube
Room temperature
Room temperature: 48 hours
Refrigerated: 48 hours (may cause platelet clumping)
Frozen: Unstable
Gross hemolysis • Clotted • Received frozen
Not offered in Quest Nichols Institute - Chantilly, VA | Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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