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Test Code ULEADM Lead, 24 Hour, Urine

Additional Codes

Mayo PBU
Epic ID LAB404

 

Specimen Type

Urine


Ordering Guidance


The Centers for Disease Control and Prevention recommends venous blood collection for lead testing; see PBDV / Lead, Venous, with Demographics, Blood



Necessary Information


24-Hour volume (in milliliters) is required.



Specimen Required


Patient Preparation:  High concentrations of gadolinium and iodine are known to potentially interfere with most inductively coupled plasma mass spectrometry-based metal tests. If either gadolinium or iodine containing contrast media has been administered, a specimen should not be collected for 96 hours.

Supplies: Urine Tubes, 10 mL (T068)

Collection Container/Tube: Clean, plastic urine container with no metal cap or glued insert

Submission Container/Tube: Plastic, 10-mL urine tube or a clean, plastic aliquot container with no metal cap or glued insert

Specimen Volume: 3 mL

Collection Instructions:

1. Collect urine for 24 hours.

2. Refrigerate specimen within 4 hours of completion of 24-hour collection.

3. See Metals Analysis Specimen Collection and Transport for complete instructions.

Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens for multiple collections.


UPH Waterloo Region Lab Test Catalog Note:

Refrigerate during and after collection.

Specimen Minimum Volume

1.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days
UPH Waterloo Region Lab Test Catalog Note:

Transport 10 mL of 24 hour urine refrigerated with total volume documented. 

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Method Name

Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS)

Useful For

Detecting clinically significant lead exposure in 24-hour specimens

 

This test is not a substitute for blood lead screening.

Day(s) Performed

Monday through Friday

Report Available

1 to 3 days

Reference Values

0-17 years: Not established

≥18 years: <2 mcg/24 h

CPT Code Information

83655