Sign in →

Test Code CA24 Calcium, 24 Hour, Urine

Important Note

Note: if multiple 24hr urine tests are being ordered and include Mayo urine tests, check Mayo's Urine Preservatives-Collection and Transportation for 24-Hour Urine. You may wish to consider changing the inhouse CA24 to an OTH2 and ordering Mayo's 24 hr urine calcium test instead, if it will save the patient from collecting a separate jug just for our in-house test.

Additional Codes

Ordering Mnemonic
CA24

 

Methodology

Arsenazo

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Container/Tube: Plastic urine collection container(s)

Specimen Volume: 10 mL from a 24-hour urine collection

Collection Instructions: 20 ml of 6 N HCL added to the collection container before collection.  Specimen must be refrigerated or put on ice during collection.

Note: 1. 24-Hour volume is required.

2. Follow instructions in “Urine Collection” in Special Instructions.

Specimen Transport Temperature

Refrigerate

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82340 (HH Bill Code 0205388)

Reference Values

100-300 mg/24 hours

Special Instructions