Urine Calcium
Code:
UCAL
Sample Type:
24 hour urine (24 hour collection bottle)
Random urine – plain, no preservative
Ref Ranges/Units:
Adults: 0 – 6.2 mmol/24 hour
Turnaround:
Same Day
Stability:
Acidified in laboratory to pH 2.
Once acidified, stable for:
2 days at 15‑25°C
4 days at 2‑8°C
3 weeks at -20°C
Special Precautions/Comments:
Additional Information:
Urine calcium is usually measured in patients with abnormal serum calcium levels. Measurement can aid investigation of parathyroid disease and familial hypocalciuric hypercalcaemia (FHH) by calculation of the calcium-creatinine clearance ratio. Hypercalciuria also carries an increased risk of urinary calculi.
South of Tyne & Wear Pathology Centre
