Laboratory Test Information Guide

Details for Citrate, 24-Hour Urine

Test Name: Citrate, 24-Hour Urine
Alternate Name(s):  
Laboratory: Core
Specimen Type: 24-hour urine
Collection Information: Collection of a 24-Hour Urine Sample

Collect urine over a 24-hour period in a container with 30 mL of 6 N HCl for adult samples or 15 mL of 6 N HCl for pediatric samples.

Please complete the laboratory label attached to the collection bottle to include patientís name, collection start time and date and collection end time and date.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Referred out Tuesday-Thursday
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
14 days
Stat
NA
 
Reference Range: 20-21 years: 0.78-6.20 mmol/day
21-22 years: 0.82-6.20 mmol/day
22-23 years: 0.85-6.20 mmol/day
23-24 years: 0.89-6.20 mmol/day
24-25 years: 0.93-6.20 mmol/day
25-26 years: 0.97-6.20 mmol/day
26-27 years: 1.00-6.20 mmol/day
27-28 years: 1.04-6.20 mmol/day
28-29 years: 1.08-6.20 mmol/day
29-30 years: 1.11-6.20 mmol/day
30-31 years: 1.15-6.20 mmol/day
31-32 years: 1.19-6.20 mmol/day
32-33 years: 1.22-6.20 mmol/day
33-34 years: 1.26-6.20 mmol/day
34-35 years: 1.30-6.20 mmol/day
35-36 years: 1.34-6.20 mmol/day
36-37 years: 1.37-6.20 mmol/day
37-38 years: 1.41-6.20 mmol/day
38-39 years: 1.45-6.20 mmol/day
39-40 years: 1.48-6.20 mmol/day
40-41 years: 1.52-6.20 mmol/day
41-42 years: 1.56-6.20 mmol/day
42-43 years: 1.59-6.20 mmol/day
43-44 years: 1.63-6.20 mmol/day
44-45 years: 1.67-6.20 mmol/day
45-46 years: 1.71-6.20 mmol/day
46-47 years: 1.74-6.20 mmol/day
47-48 years: 1.78-6.20 mmol/day
48-49 years: 1.82-6.20 mmol/day
49-50 years: 1.86-6.20 mmol/day
50-51 years: 1.89-6.20 mmol/day
51-52 years: 1.93-6.20 mmol/day
52-53 years: 1.97-6.20 mmol/day
53-54 years: 2.00-6.20 mmol/day
54-55 years: 2.04-6.20 mmol/day
55-56 years: 2.08-6.20 mmol/day
56-57 years: 2.11-6.20 mmol/day
57-58 years: 2.15-6.20 mmol/day
58-59 years: 2.19-6.20 mmol/day
59-60 years: 2.22-6.20 mmol/day
60-61 years: 2.26-6.20 mmol/day
Effective Date: 2008-11-15
Revised Date: 2019-02-21
Critical Value:  
Interpretive Comments: Urinary citrate is a major inhibitor of kidney stone formation due in part to binding of calcium in urine. Low urine citrate levels are considered a risk for kidney stone formation.
Special Processing: Transfer a 50-mL aliquot of the measured urine to a sterile container and add 2 drops of 6 N HCl.
Comments:  
Method of Analysis: Enzymatic
Critical Information Required:  
Storage & Shipment: Store and ship frozen.
System Codes: 
Cerner
CITU24
 
Referred To: In-Common Laboratories

Questions? Comments? Contact Laura Gopaul