- ACASM
Pernicious Anemia Cascade
Test Code
ACASM
Specimen Name
Pernicious Anemia Cascade
CPT Codes
- 82607
Collect
SST-Serum
Stability
30 days frozen
Volume
3 mLs
Minimum Volume
1.6 mLs
Performed
Performed Monday through Saturday - 1-5 days
Components
Includes: Vitamin B12 Assay, S; Gastrin, S; Intrinsic Factor Blocking Ab, S; Methylmalonic Acid, QN, S
Additional Information
Patient Preparation: Ask patients if they have received a vitamin B12 injection or radiolabeled vitamin B12 injection within the last 2 weeks. Patient results will not reflect deficiency or malabsorption after recent B12 injection. If patient has received such an injection within the past 2 weeks, this test should not be ordered. https://www.mayocliniclabs.com/-/media/it-mmfiles/Special-Instructions/A/6/3/benign-hematology-test-request-form. Patient Preparation:
1. Fasting: 12 hours, required
2. For 12 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).
3. For 1 week before specimen collection, if medically feasible, patient should not take proton pump inhibitors (omeprazole, lansoprazole, dexlansoprazole, esomeprazole, pantoprazole, and rabeprazole).
4. For at least 2 weeks before specimen collection, patient should not take or receive drugs that interfere with gastrointestinal motility (eg, opioids).
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Common Lab Definitions
- Serum
- Plasma
- STT