Label 24 hours urine container with two identifier (Name and identity no - NRIC/MRN)

Day 1

Instruct the patient to void first urine in the morning and discard the urine. Record date & time collection started. Then, collect all urine in a 24 hours container for next 24 hours.

(Keep sample in a cool & dry place during the collection period.)

Day 2

Include the final urine voided into 24 hours urine container. Record date & time completed.

24 hours urine collection result may be associated with significant collection errors, largely due to improper timing and missed samples, leading to over-collection and under-collection.