|
|
|
Lab Dept:
|
Urine/Stool
|
Test Name:
|
IRON, URINE
|
General Information
|
Lab Order Codes:
|
FEUR
|
Synonyms:
|
Fe, Iron; Fe, 24 hour, Urine
|
CPT Codes:
|
83540 – Iron
|
Test Includes:
|
Urine iron measured in mcg/specimen
|
Logistics
|
Test Indications:
|
Diagnosis of hemochromatosis, hemolytic anemia, paroxsysmal nocturnal hemoglobinuria, and impaired biliary clearance.
|
Lab Testing Sections:
|
Urine Stool - Sendouts
|
Referred to:
|
Mayo Medical Laboratories (Test: FEU/8571)
|
Phone Numbers:
|
MIN Lab: 612-813-6280
|
STP Lab: 651-220-6550
|
Test Availability:
|
Daily, 24 hours
|
Turnaround Time:
|
1 – 6 days, test performed Monday and Friday
|
Special Instructions:
|
See Container
|
Specimen
|
Specimen Type:
|
24 hour urine collection
|
Container:
|
Clean, plastic urine container with no metal caps with no preservative. Keep specimen refrigerated or on ice during the collection period.
|
Draw Volume:
|
Entire collection
|
Processed Volume:
|
10 mL (Minimum: 0.5 mL) aliquot from 24 hour urine
|
Collection:
|
24 hour urine collection
|
Special Processing:
|
Lab Staff: Mix entire collection well. Measure entire volume and record. Remove a 10 mL urine aliquot from the 24 hour collection and put into a plastic 13 mL urine tube. This container should have no metal caps or inserts. The specimen should be refrigerated within 4 hours of completion. Ship the specimen at refrigerated temperatures. Forward promptly.
|
Patient Preparation:
|
None
|
Sample Rejection:
|
Mislabeled or unlabeled specimens
|
Interpretive
|
Reference Range:
|
0 – 15 years:
|
Not established
|
>or =16 years
|
100-300 mcg/specimen
|
Critical Values:
|
N/A
|
Limitations:
|
High concentrations of gadolinium and iodine are known to interfere with most metal tests. If gadolinium or iodine-containing contrast media has been administered, a specimen cannot be collected for 96 hours.
|
Methodology:
|
Inductively Coupled Plasma (ICP) Emission Spectroscopy (OES)
|
References:
|
Mayo Medical Laboratories May 2013
|
