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Test Code BLOD1406 Lead Profile Occupational Exposure, Blood

Additional Codes

Mayo Test Code: PBZP

Useful For

Detecting lead toxicity

Profile Information

Test ID Reporting Name Available Separately Always Performed
PBB Lead, B Yes, (order PBDB) Yes
ZPPB Zinc Protoporphyrin, B Yes, (order NEZPP) Yes
DEMO5 Patient Demographics No Yes

Method Name

PBB: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

ZPPB: Hematofluorometry

Specimen Type

Whole blood


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.

Supplies:

Metal Free B-D Tube (EDTA), 6 mL (T183)

Metal Free (Lead only) EDTA Tube, 3 mL (T615)

Microtainer (EDTA) Tube, 0.5 mL (T174)

If ordering the EDTA trace element Vacutainer tube from BD, order catalog #368381

Container/Tube:

Preferred: Royal blue-top BD Vacutainer Plus with EDTA blood collection tube (T183)

Acceptable: Tan-top (lead only) BD Vacutainer Plus with EDTA blood collection tube (T615) or BD Microtainer with EDTA (T174) or royal blue-top Monoject trace element blood collection tube

Specimen Volume: 2 mL

Collection Instructions:

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

2. Send specimen in original tube.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Refrigerated 28 days

Reject Due To

Hemolysis

Mild reject; Gross reject

Lipemia

Mild reject; Gross reject

Icterus

NA

Other

Clotted specimen, Green top heparin tube

Reference Values

LEAD

All ages: 0.0-4.9 mcg/dL

Critical values

Pediatrics (≤15 years): ≥20.0 mcg/dL

Adults (≥16 years): ≥70.0 mcg/dL

 

ZINC PROTOPORPHYRIN

<100 mcg/dL

All measurements assume hematocrit of 42% and are made in mcg/dL per OSHA requirements.

Day(s) and Time(s) Performed

Monday through Friday; 5 pm

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

83655-Lead

84202-Protoporphyrin, RBC; Quantitative

Test Classification

See Individual Test IDs

Forms

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