Common Test-Ordering Errors
Part 5: Overordered Tests
Plasma Thiamin
Serum Folate
Zinc Protoporphyrin (ZPP)
Diagnostic Algorithm for Macrocytic Anemia
August 2010
This algorithm, which was published by one of Mayo's hematologists, shows an approach for diagnosing the cause of macrocytic anemia that avoids the folate assay limitations. This diagnostic approach substitutes methylmalonic acid and/or homocysteine testing for folate.
Diagnostic Algorithm |
Jump to section:
- Introduction
- Testing at Mayo Medical Laboratories
- Common MML Test-Ordering Errors
- Overordered Tests
- Thiamin (Vitamin B1)
- Thiamin (Vitamin B1)
- Folate—Serum and RBC
- Diagnostic Algorithm for Macrocytic Anemia
- Simplified Versions of Vitamin-Dependent Pathways
- Lead Toxicity
- Heme Synthesis*
- Laboratory Assessment of Lead Toxicity
- Conclusion
- Questions?
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