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Vanderbilt Pathology Laboratory Services

Test Directory



LEAD WHOLE BLOOD (LDW or LDP)

Department: Toxicology
Test Synonym(s): LDW, LDP
CPT Codes: 83655
Methodology: Anodic stripping voltometry
Reference Range: Less than 5 mcg/dL
Tube Type: Royal blue (EDTA) top for LDW, Lavender top (EDTA) for LDP
Specimen: Whole blood
Pediatric Requirements: 1 lavender microtainer
Volume: 5 mL
Minimum Volume: 0.5 mL (pediatric only)
Temperature: Refrigerated if not delivered to the lab immediately
Stability: Room temperature: 2 days, refrigerated for longer storage
Reasons for Rejection: Clotted or improper collection
Days Performed: Monday - Friday
Times Performed: Set up evening shift, completed following morning
TAT: Next day
Special Instructions: Order LDW for adults, LDP for pediatric patients. Also available in heavy metal screen: test code HMT

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