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Test Code NBLD0111 Heavy Metals Screen, Random, Urine

Additional Codes

Mayo Test Code: HMSRU

Profile Information

Test ID Reporting Name Available Separately Always Performed
ASRU Arsenic, Random, U Yes Yes
PBRU Lead, Random, U Yes Yes
CDRU Cadmium, Random, U Yes Yes
HGRU Mercury, Random, U Yes Yes

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Patient Preparation:

1. Patient should not eat seafood for a 48-hour period prior to start of collection.

2. 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.

Collection Container/Tube: Clean, plastic urine collection container

Submission Container/Tube: Plastic, 5-mL tube (T465) or a clean, plastic aliquot container with no metal cap or glued insert

Specimen Volume: 2 mL

Collection Instructions:

1. Collect a random urine specimen.

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


Specimen Minimum Volume

2 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 7 days
  Frozen  7 days

Reference Values

ARSENIC

0-35 mcg/L

Reference values apply to all ages.

 

LEAD

0-4 mcg/L

Reference values apply to all ages.

 

CADMIUM

0-15 years: not established

≥16 years: 0.0-1.3 mcg/L

 

MERCURY

0-15 years: not established

≥16 years: 0-9 mcg/L

Toxic concentration: >50 mcg/L

The concentration at which toxicity is expressed is widely variable between patients. 50 mcg/L is the lowest concentration at which toxicity is usually apparent.

Day(s) and Time(s) Performed

Monday through Friday; 3 p.m. - 9 p.m.; Saturday; 8 a.m. – 3 p.m./Continuously

Test Classification

See Individual Test IDs

CPT Code Information

82175-Arsenic

82300-Cadmium

83655-Lead

83825-Mercury

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Testing Algorithm

See Porphyria (Acute) Testing Algorithm in Special Instructions.