Oxalate/Creatinine Ratio
random oxalate, oxalate
56.34
Ascorbic acid (vitamin C) at very high concentrations can interfere. It is recommended that patients refrain from taking excessive amounts of vitamin C or vitamin C rich foods for at least 48 hours prior to urine collection.
Only to be analysed on patients <14 years of age
A random first morning urine (ideally collected prior to eating).
Should be sent to lab without delay
Add acid immediately, pH
Acidified and Frozen, pH must be <2.
Biochemistry
6 weekly
45 days
Cobas Pro
umol/mmol
See attachment
15%
.
Only to be analysed on patients <14 years of age.
For patients >14 years of age, we require a 24hr urine collected into an acid preservative
5ml
OXAU
$OXAU
