Pathology tests database

Sample and container requirements

Plain Spot Urine Plain 24 hr Urine

Minimum volume required

Special requirements

None

Patient preparation

None

Sample viability

Turnaround time

This assay is run throughout the day and night. The in-lab turnaround time is normally less than 24 hours.

Reference range

428 – 714 mmol/24 hr (Source: Abbott Diagnostics)

Clinical guidance

Catabolism of proteins and amino acids results in the formation of urea, which is predominantly cleared from the body by the kidneys. Measurement of urinary urea may be used as a measure of protein breakdown in the body. Low levels usually indicate malnutrition or renal dysfunction with high levels indicating excess protein intake or an increase in protein catabolism.

Notes