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Arsenic Speciation, 24 Hour, Urine

Additional Codes

LAB2594


Specimen Required


Patient Preparation:

1. For the 48-hour period prior to start of collection, as well as during the 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 collection container

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

Specimen Volume: 10 mL

Collection Instructions:

1. Collect urine for 24 hours.

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

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

Additional Information: For multiple collections see Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens


Specimen Type

Urine

Specimen Minimum Volume

3 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours

Reference Values

TOXIC ARSENIC

<35 mcg/L

Reference values apply to all ages.

 

Arsenic Speciation Interpretive Information:

The toxic arsenic concentration represents the sum of the inorganic and methylated arsenic species. The reference value for toxic arsenic is <35 mcg/L. This value is based on the American Conference of Governmental Industrial Hygienists (ACGIH) Biological Exposure Index (BEI), which does not include the non-toxic organic arsenic.

Specimen Retention Time

14 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82175

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SPASU Arsenic Speciation, 24 Hr, U 96253-0

 

Result ID Test Result Name Result LOINC Value
609384 Inorganic Arsenic (Toxic) 41992-9
609385 Methylated Arsenic (Toxic) 96252-2
609386 Organic Arsenic (Non-Toxic) 43181-7
609406 Toxic Arsenic Concentration 96251-4
609387 Total Arsenic Concentration 21074-0

Day(s) Performed

Monday through Friday

Report Available

3 to 5 days