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HelpTest Code CACR Calcium : Creatinine Ratio, Urine
Specimen Requirements
Specimen Type: Urine
Container/Tube: Urine Cup
Volume: 100mL
Minimum Volume: 30mL
Collection Instructions: Collect mid-stream urine in preservative-free urine container.
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Urine |
|---|---|
| Ambient: | 2 days |
| Refrigerate: | 4 days |
| Frozen: | 3 weeks |
Reference Interval
| Age (Years) | Male | Female |
|---|---|---|
| 0 - <1 | ≤1.50 mmol/mmol | |
| 1 - <2 | ≤1.25 mmol/mmol | |
| 1 - 4 | ≤1.00 mmol/mmol | |
| 2 - 4 | ≤1.00 mmol/mmol | |
| 5 - 9 | ≤0.70 mmol/mmol | ≤0.70 mmol/mmol |
| 10 - 17 | ≤0.60 mmol/mmol | ≤0.60 mmol/mmol |
| ≥18 | 0.04-0.45 mmol/mmol | 0.10-0.58 mmol/mmol |
Days and Times Performed
24 hours, TAT 1 day
Methodology
See individual test listings for Methodology
CALCIUM, URINE
Arsenazo III
CREATININE, URINE, RANDOM
Enzymatic
Service Code
31407
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Evaluating calcium homeostasis.
Panel Information
Profile includes the following tests:
- Calcium, Random Urine (CAU)
- Creatinine, Random Urine (CREU)
- Calcium : Creatinine Ratio (CACR)