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Molybdenum, Blood
Test Code38583
CPT Codes
83018
Preferred Specimen
4 mL whole blood collected in an EDTA or sodium heparin trace metal-free (royal blue-top) tube
Patient Preparation
Patient should refrain from taking mineral supplements 3 days before specimen collection and from eating legumes and leafy vegetables 2 days before specimen collection.
Minimum Volume
2 mL
Other Acceptable Specimens
Whole blood collected in a sodium heparin (green-top) tube, or EDTA (lavender-top) tube, or sodium heparin lead-free (tan-top) tube
Instructions
Tests performed on a specimen submitted in a non-trace element tube or non acid-washed/non metal-free container may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that re-submission with a trace element tube/container is recommended.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 48 hours
Refrigerated: 5 days
Frozen: Unacceptable
Refrigerated: 5 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Received room temperature • Received frozen • Clotted specimen
Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Setup: Tues, Thurs, Sat; Report available: 2-4 days
Reference Range
<2.2 mcg/L
Clinical Significance
Molybdenum is an essential trace element. In anemia, molybdenum concentration decreases in both erythrocytes and plasma. Toxic doses can cause anemia and abnormal copper metabolism.
