Chromium, 24-Hour Urine

Test Code

10944

CPT Codes
82495

Includes

Creatinine

CPT code 81050 may be added at an additional charge for volume measurement

Preferred Specimen

2 mL of a 24-hour urine collected and submitted in an acid-washed or metal-free leak-proof container

Minimum Volume

0.5 mL

Instructions

Please specify on the test requisition and on the urine container the total 24-hour urine volume.

Note: Tests performed on a specimen submitted in a non-trace element tube/container (non acid-washed) may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that resubmission with a trace element tube/container is recommended.

Transport Container

Acid-washed or metal-free leak-proof container

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 4 days
Refrigerated: 14 days
Frozen: 30 days

Methodology
Atomic Absorption (AA)

Setup Schedule

Wed

Reference Range

Chromium	<2.0 ng/mL
Chromium/Creatinine Ratio	<5.0 mcg/g cr

Creatinine, 24 Hour Urine
<3 Years	Not established
3-8 Years	0.10-0.80 g/24 h
9-12 Years	0.20-1.40 g/24 h
13-17 Years	0.40-1.90 g/24 h
>17 Years	0.50-2.15 g/24 h

Performing Laboratory

Quest Diagnostics Nichols Institute-Chantilly VA

14225 Newbrook Drive

Chantilly, VA 20151-2228

Last Updated: November 6, 2024

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.