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Test Code CA UR RND/24H UR CALCIUM Calcium, Urine

Performing Laboratory

NRL-Chemistry

Methodology

Cresolphthalein Complexone

 

Specimen Requirements

Submit only 1 of the following specimens:

 

24-Hour Collection

Specimen Type: Urine, 24-hour

Container/Tube: 24 Hour plastic urine container 

Specimen Volume: Entire collection

Collection Instructions: Refrigerate specimen during collection.

Additional Information:

1. Starting and ending times of collection are required.

2. Follow instructions in Urine Collection in Special Instructions.

3. 20-30 mL of 6N HCL should be added to the entire collection. Mix and wait 30 minutes before testing. 

 

Random Collection

Specimen Type: Urine, random

Container/Tube: Plastic urine container

Specimen Volume: 10 mL

Collection Instructions: No preservative.

Reference Values

CALCIUM, CALCULATED, 24-HOUR URINE
25-300 mg/24

 

CALCIUM, RANDOM URINE
No established reference values

Note: Results are calculated using total volume and length of collection and results are adjusted to units/24 hours.

Day(s) Test Set Up

Monday through Sunday

Specimen Transport Temperature

Refrigerate

Test Classification and CPT Coding

81050-Urine timed measurement (if appropriate)

82310-Random calcium (if appropriate)

82340-24-hour calcium (if appropriate)

Special Instructions