Urine Tests

The appropriate 24-hour urine bottles can be collected from Pathology Specimen Reception.

Tests

Sample type

Test frequency

Reference range

Bence-Jones protein

10ml Early morning urine

Batched ~ weekly

Screening test, Pos or Neg

Calcium

24hr Acid bottle (or 24hr plain bottle for a Stone Screen)

Daily

2.5 - 7.5 mmol/24hrs

Catecholamines

24hr Acid bottle

Weekly

<1.1 µmol/24hrs

Citrate

24hr Acid bottle (or 24hr plain bottle for a Stone Screen)

Weekly

1680-6450 µmol/24hrs

Cortisol

24hr Plain bottle

Weekly

Up to 165 nmol/24 hours

Creatinine Clearance

24hr Plain bottle:

Send blood U&E

Daily

Age dependent. See report

Cystine

24hr Plain bottle

Weekly

<100 mg/24hrs

5HIAA

24hr Acid bottle. N.B. Dietary restrictions

Weekly

<46 µmol/24hrs normal

46 - 90, may be dietary

>90, unlikely to be dietary

Light chains (quantitation)

24hr (no preservative)

Fortnightly

NA

Magnesium

24hr Acid bottle (or 24hr plain bottle for a Stone Screen)

Daily

2.5 - 8.0 mmol/24hr

Microalbumin

10 ml EMU

Daily

<2.5 mg/mmol - males

<3.5 mg/mmol - females

Myoglobin

Random urine

As required

Pos or Neg

Osmolality

10 ml EMU or random

As required

Relative to hydration status

Oxalate

24hr Acid bottle (or 24hr plain bottle for a Stone Screen)

Weekly

Sex related - see report

Phosphate

24hr Acid bottle (or 24hr plain bottle for Stone Screen)

Daily

Variable. See report

Porpho/urobilinogen / Porphyria screen

10ml random urine protect from light

As required

Pos/Neg

Potassium

24hr or random. Plain bottle

Daily

Contact Duty Biochemist

Protein

24hr or random. Plain bottle

Daily

<0.2 g/24hrs

Sodium

24hr or random. Plain bottle

Daily

Contact Duty Biochemist

Urate

24 hr Plain bottle

Daily

3 - 12 mmol/24hr