Cleveland HeartLab H, Test


CPT Code: 85018
Order Code: C211
ABN Requirement: No
Specimen: EDTA Whole Blood
Volume:  1.0 mL
Minimum Volume:  0.5 mL
Container: EDTA (Lavender Top tube)


  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 8-10 times immediately after draw. DO NOT SHAKE.
  3. Do not centrifuge.

Transport: Store EDTA whole blood at 2°C to 8°C after collection and ship the same day per packaging instructions provided with the Cleveland HeartLab shipping box.


Ambient (15-25°C): Not Acceptable
Refrigerated (2-8°C):
5 days
Frozen (-20°C):
Not Acceptable
Deep Frozen (-70°C):
Not Acceptable

Causes for Rejection: Specimens other than EDTA whole blood; improper labeling; samples not stored properly; samples older than stability limits; clotted samples; grossly hemolyzed samples; samples drawn from above an IV

Methodology: Flow Cytometry

Turn Around Time:  1 to 3 days

Reference Range:

TestAge/GenderReference Range
Hemoglobin0-1 month12.5-21.5 g/dL
2-6 months9.0-14.0 g/dL
7 months-2 years10.5-13.5 g/dL
3-6 years11.5-13.5 g/dL
7-12 years11.5-13.5 g/dL
13-55 years, Female11.0-15.1 g/dL
13-65 years, Male12.4-16.9 g/dL
≥56 years, Female11-16.7 g/dL
≥66 years, Male11-16.7 g/dL


Urgent Values:

TestAgeUrgent Value
Hemoglobin≥2 years old6.1-7.0 g/dL

Use: The hemoglobin test is useful for identifying individuals with conditions affecting red blood cells, or individuals with symptoms including weakness, fatigue or shortness of breath. It can also be used to monitor the efficacy of treatment for anemia.

Limitations:  An extremely elevated white blood cell count may cause an increased hemoglobin value. Abnormal paraproteins found in multiple myeloma patients, lipemia or severely icteric samples can falsely increase hemoglobin results. Hemoglobin S, C and F, or hereditary or acquired spherocytosis may cause an increase in hemoglobin values. Removal of plasma from a sample will cause falsely elevated hemoglobin results.

Additional Information: Hemoglobin levels can be affected by recent transfusions, and are slightly lower during pregnancy.

The CPT codes provided are based on AMA guidelines 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.