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24 hour Urine Calcium

Alternative Names:Timed Urine Calcium
Laboratory:Clinical Biochemistry
Test Code:DCA
Medicare rebatable:Yes
Registration Instructions:

If the request is for both 24-hour urinary creatinine and urinary phosphate (and/or urinary calcium), only one 24-hour acidified bottle is required.

Specimen Types:Urine 24 hour
Container Types:
Urine Bottle ACIDUrine Bottle ACID
Adults Volume or Mass:50 mL
Minimum/Paediatric Volume or Mass:50 mL
Collection & Request Instructions:Add 20 mL 6 M HCl to urine bottle (24 hour)

If the request is for both 24-hour urinary creatinine and urinary phosphate (and/or urinary calcium), only one 24-hour acidified bottle is required.

Record start and end date/time of collection on bottle/request form.

Transport Instructions:Room Temperature
Processing Instructions:

Non-acidified urine collections should be mixed thoroughly by inversion 5 times immediately prior to acidification (prior to analysis). Acidify to pH < 2.

Weight, aliquot and record volume on bottle/request form.

Assay Frequency:Daily