Hemoglobin Evaluation Cascade
Test Mnemonic
HBEVAL
CPT Codes
- 83020 - QTY (1)
- 83020(PC) - QTY (1)
- 85041 - QTY (1)
Includes
- RBC
- Hemoglobin
- Hematocrit
- MCV
- MCH
- MCHC
- RDW-CV
- Hb A Percent
- Hb F Percent
- Hb A2 Percent
- Abnormal Hemoglobin
- Interpretation
- Reviewed by:
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 8 mL | Whole blood | EDTA (Lavender) | Ambient | Refrigerated | Draw two 4 mL tubes |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Whole blood | EDTA (Microtainer tube) | Ambient | Refrigerated |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 7 days |
| Frozen | Unacceptable |
| Ambient | Unacceptable |
Days Performed
5 days per week
Turnaround Time
1 - 5 days
Methodology
| Name | Description |
|---|---|
| Capillary Electrophoresis (CE) |
Reference Range
| Hemoglobin A2 Percent | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | 2.0-3.1 | % | |
| Hemoglobin Fetal | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 0.0-0.9 | % |
Special Info
Indicate age of patient, and/or ethnic background and date of most recent blood transfusion. If an abnormal hemoglobin or abnormal distribution of hemoglobins is found, additional hemoglobin studies will be charged separately. These tests may include alkaline and acid electrophoresis, isoelectric focusing, sickle solubility, and/or ferritin.
Clinical Info
To detect or rule out abnormal hemoglobin and thalassemias.