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Test Code BLOD1556 Lead, Capillary, with Demographics, Blood

Additional Codes

Mayo Test Code: PBDC

Specimen Required

Patient Preparation:

-High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

-CDC 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.

Supplies: Microtainer (EDTA) Tube, 1.5 mL (T174)

Collection Container/Tube: BD Microtainer with EDTA (T174)

Specimen Volume: 0.4 mL

Collection Instructions:

1. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

2. Send specimen in original tube.


1. Lead/Heavy Metals Reporting Form (T491) in Special Instructions

2. If not ordering electronically, complete, print, and send a General Request Form (T239) with the specimen (

Useful 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

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Specimen Type

Whole blood

Specimen Minimum Volume

0.1 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To


Mild OK; Gross OK


Mild OK; Gross OK


Mild OK; Gross reject


Green-top (heparin) tube

Reference Values

All ages: 0.0-4.9 mcg/dL

Critical values

Pediatrics (≤15 years): ≥20.0 mcg/dL

Adults (≥16 years): ≥70.0 mcg/dL

Day(s) and Time(s) Performed

Monday through Friday; 5 p.m.

Saturday; 2 p.m.

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

See Individual Test IDs

CPT Code Information