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HelpTest Code LAB830 - BACK UP ONLY Lead, Capillary, with Demographics, Blood
Additional Codes
SQ: PBDCM
MAYO: PBDC
Ordering Guidance
The Centers for Disease Control and Prevention recommends venous collection of samples for lead testing. Capillary lead testing is acceptable for pediatrics and patients with phlebotomy considerations, but capillary blood collection may be more susceptible to contamination. Elevated capillary blood levels must be confirmed with a venous lead blood test. See PBDV / Lead, Venous, with Demographics, Blood.
Specimen Required
Patient Preparation: High concentrations of gadolinium and iodine are known to potentially interfere with most inductively coupled plasma mass spectrometry-based metal testing. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Supplies: Microtainer (EDTA) Tube, 0.5 mL (T174)
Collection Container/Tube: BD Microtainer with EDTA
Specimen Volume: 0.4 mL
Collection Instructions:
1. See Metals Analysis Specimen Collection and Transport for complete instructions.
2. Send whole blood specimen in original tube. Do not aliquot.
Forms
1. Lead and Heavy Metals Reporting (T491) or Lead and Heavy Metals Reporting-Spanish (T956)
2. If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.
Secondary ID
113400Useful For
Detecting lead toxicity with capillary collections
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| PBBC | Lead, Capillary, B | No | Yes |
| DEMO7 | Patient Demographics | No | Yes |
Special Instructions
Method Name
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Reporting Name
Lead, Capillary, w/Demographics, BSpecimen Type
Whole bloodSpecimen Minimum Volume
0.1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole blood | Refrigerated (preferred) | 28 days | |
| Ambient | 28 days | ||
| Frozen | 28 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
| Clotted Blood | Reject |
Reference Values
<3.5 mcg/dL
Critical values
Pediatrics (≤15 years): ≥20.0 mcg/dL
Adults (≥16 years): ≥70.0 mcg/dL
Method Description
The metal of interest is analyzed by inductively coupled plasma mass spectrometry.(Unpublished Mayo method)
Day(s) Performed
Monday through Saturday
Report Available
1 to 2 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83655
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PBDC | Lead, Capillary, w/Demographics, B | 10368-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 65639 | Lead, Capillary, B | 10368-9 |
| PTAD7 | Patient Street Address | 56799-0 |
| PTCI7 | Patient City | 68997-6 |
| PTST7 | Patient State | 46499-0 |
| PTZI7 | Patient Zip Code | 45401-7 |
| PTCN7 | Patient County | 87721-7 |
| PTPH7 | Patient Home Phone | 42077-8 |
| PTRA7 | Patient Race | 32624-9 |
| PTET7 | Patient Ethnicity | 69490-1 |
| PTOC7 | Patient Occupation | 11341-5 |
| PTEM7 | Patient Employer | 80427-8 |
| GDFN7 | Guardian First Name | 79183-0 |
| GDLN7 | Guardian Last Name | 79184-8 |
| MDOR7 | Health Care Provider Name | 52526-1 |
| MDAD7 | Health Care Provider Street Address | 74221-3 |
| MDCI7 | Health Care Provider City | 52531-1 |
| MDST7 | Health Care Provider State | 52532-9 |
| MDZI7 | Health Care Provider Zip Code | 87720-9 |
| MDPH7 | Health Care Provider Phone | 68340-9 |
| LABP7 | Submitting Laboratory Phone | 65651-2 |