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HelpTest Code URCA Urine Calcium, 24 hour
Specimen and Container/Tube
Urine, Timed (24 hour)
Rejection Criteria
N/A
Turnaround Time
N/A
Test Includes
Quantitative determination of calcium in urine
Specimen Type
Urine, Timed (24 hour)
Container/Tube
Sterile Urine Container
Preferred Volume
0.5 mL
Specimen Minimum Volume
0.2 mL
Reject Due To
N/A
Day(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.
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).
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
10 �?? 300 mg/24 hr
Additional Information
N/A
Stability: Room Temp
2 days
Stability: Refrigerated
4 days
Stability: Frozen
3 months
Pediatric Volume
0.2 mL
Clinical Indications
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.
Transport 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).
Test Components
Quantitative determination of calcium in?�urine
Specimen Stability
2 days
Methodology
Spectrophotometric
( with 5-nitro-5�??-methyl-BAPTA)
Synonyms/Key Search Words
N/A