Find Locations
For hours, walk-ins and appointments.Synonyms
- Pb, Blood
Expected Turnaround Time
1 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
Related Documents
Specimen Requirements
Specimen
Whole blood
Volume
1 mL (venous)
Minimum Volume
0.5 mL (venous)
Container
Royal blue-top (EDTA) tube or tan-top lead-free tube; submit original tube.
Collection
Mix blood thoroughly to avoid clotting.
Storage Instructions
Maintain specimen at room temperature.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x2 |
Causes for Rejection
Capillary specimen in Microtainer tubes; clotted specimen
Test Details
Use
Monitor environmental lead exposure in children younger than 16 years.
Limitations
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Methodology
Atomic absorption spectrometry (AAS) or inductively coupled plasma/mass spectrometry (ICP/MS)
Reference Interval
Environmental exposure: 0 to 15 years: 0.0−3.4 μg/dL1
Additional Information
The Centers for Disease Control and Prevention recommends the following testing schedule for children with elevated BLLs (blood lead levels) on a screening test.2 See table.
Blood (μg/dL): | Time to Confirmation Testing: |
|---|---|
*The higher the BLL on the screening test, the more urgent the need for confirmation testing. | |
Reference value-9 | 1 to 3 m |
10−45 | 1 wk to 1 m* |
45−59 | 48 h |
60−69 | 24 h |
≥70 | Urgently as emergency test |
Footnotes
1. Centers for Disease Control and Prevention. Preventing Lead Poisoning in Young Children: A Statement by the Centers for Disease Control. Atlanta, Ga: CDC;1991.
2. Low Level Lead Exposure Harms Children: A Renewed Call for Primary Prevention. Report of the Advisory Committee on Childhood Lead Poisoning Prevention of the Centers for Disease Control and Prevention. January 4, 2012.
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 717009 | Lead, Blood (Pediatric) | 77307-7 | 007030 | Lead, Blood (Peds) Venous | ug/dL | 77307-7 |
© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.
CPT Statement/Profile Statement
The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf