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Test Code URCA Urine Calcium, 24 hour

Important Note

If ordering a random collection use order code RCA

Specimen Type

Urine, Timed (24 hour)

Container/Tube

Sterile Urine Container

Offsite Collection Instructions

1. Follow clinic instructions for 24 hour collection process.
2. Keep urine refrigerated during the 24 hour collection process.
3. Aliquot 10 mL from a well mixed timed sample collection.
4. Indicate collection volume and duration.
5. Transport refrigerated (2-8 ° C).

Turnaround Time

24 hours

Test Includes

Quantitative determination of calcium in urine

Preferred Volume

0.5 mL

Specimen Minimum Volume

0.2 mL

Reject Due To

N/A

DAY(S) AND TIME(S) PERFORMED

Monday – Friday

STAT DAY(S) AND TIME(S) PERFORMED

N/A

STAT Turnaround Time

N/A

Method Name

Spectrophotometric (with 5-nitro-5’-methyl-BAPTA)

Synonyms

N/A

CPT

82340

Fee Code

30182340

Test Limitations

Urine should be pretreated and analyzed immediately. Acidify sample to a pH of <2.0.

If preservatives need to be used for other analyte orders, collect sample using Hydrochloric Acid (6N HCl)

Test Usage

The test is used for the diagnosis and monitoring of hypocalcemia (calcium deficiency) and hypercalcemia (excess
calcium) in urine.

Drugs containing strontium salts may lead to significantly increased calcium results.

UCMC Collection Instructions

1. Follow clinic instructions for 24 hour collection process.
2. Keep urine refrigerated during the 24 hour collection process.
3. Aliquot 10 mL from a well mixed timed sample collection.
4. Indicate collection volume and duration.
5. Transport refrigerated (2-8 ° C).

Reference Values

100 – 300 mg/24 hr

Additional Information

N/A

Stability: Room Temp

2 days

Stability: Refrigerated

4 days

Stability: Frozen

3 months