Sign in →

Test Code UAS24M Arsenic with Reflex, 24 Hour, Urine

Additional Codes

Mayo ASU24
Epic ID LAB3666

 

Specimen Type

Urine


Necessary Information


24-Hour volume (in milliliters) is required.



Specimen Required


Patient Preparation:

1. For 48-hour period prior to start of collection, patient should not eat seafood.

2. 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 clean, plastic aliquot container with no metal cap or glued insert.

Specimen Volume: 6 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.


UPH Waterloo Region Lab Test Catalog Note:

Refrigerated during and after collection.

Specimen Minimum Volume

3 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours
UPH Waterloo Region Lab Test Catalog Note:

Transport 6 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)

Testing Algorithm

If total arsenic concentration is 10 mcg/L or greater, then speciation will be performed at an additional charge.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
SPASU Arsenic Speciation, 24 Hr, U Yes No

Useful For

Preferred screening test for detection of arsenic exposure using 24-hour urine specimens

Day(s) Performed

Monday through Friday

Report Available

1 to 3 days

Reference Values

0-17 years: Not established

≥18 years: <35 mcg/24 h

CPT Code Information

82175