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HelpTest Code LAB1928 Anemia Reflex Studies
Useful For
Screening and diagnosis of microcytic and macrocytic anemias.
Profile Information
| Test Code | Test Name | Methodology |
|---|---|---|
| LAB293 |
Complete Blood Count (CBC), With Differential |
Automated |
Testing Algorithm:
If hemoglobin is low and MCV is elevated, then vitamin B12 and folate will be performed at an additional charge.
If hemoglobin is low and MCV is low, then ferritin, iron, and TIBC will be performed at an additional charge.
If hemoglobin is low and MCV is normal, no further testing will be performed.
Reflex Tests
| Test Code | Test Name |
Available Separately |
Always Performed |
|---|---|---|---|
| LAB67 | Vitamin B12 | Yes | No, only if ↓Hgb, ↑ MCV |
| LAB69 | Folate | Yes | No, only if ↓Hgb, ↑ MCV |
| LAB68 | Ferritin | Yes | No, only if ↓Hgb, ↓ MCV |
| LAB829 | Iron | Yes | No, only if ↓Hgb, ↓ MCV |
| Total Iron-Binding Capacity (TIBC) | Yes | No, only if ↓Hgb, ↓ MCV |
Performing Laboratory
Bozeman Health Laboratory Services
Specimen Requirements
Whole blood and serum/plasma are required.
Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA)
Specimen Volume: 4 mL
Specimen Pediatric Volume: 1 full, lavender top Microtainer
Collection Instructions: If there is a delay in transport of >24 hours, refrigerate specimen and send specimen refrigerated.
Specimen Type: Plasma or serum
Container/Tube: Light-green top (lithium heparin gel), red top, or gold top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions: If there is a delay in transport of >8 hours, freeze specimen in plastic vial, and send specimen frozen.
Precautions: Do not order on patients who have recently received methotrexate or other folic acid antagonist.
Specimen Rejection:
1. Unfrozen specimen >8 hours old
2. Grossly hemolyzed specimens will be rejected.
Specimen Transport Temperature
Refrigerated
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole blood (EDTA) | Ambient | 24 hours |
| Refrigerated | 48 hours | |
| Serum or Plasma | Refrigerated | 8 hours |
| Frozen | 6 months |
Reference Values
See individual test listings
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
85025-CBC
82607-B12 (if appropriate)
82728-Ferritin (if appropriate)
82746-Folic acid (if appropriate)
83540-Iron (if appropriate)
83550-Iron binding (if appropriate)