24-48 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code:
82232-90
Specimen Collection Details
Collection:
Random urine. Have patient empty bladder and drink a large glass of water. Collect the urine specimen within 1 hour.
Handling:
Mix well and aliquot. If pH is >8.0, lower pH to 6.0-8.0 by adding 1M HCl. If pH is <6.0, increase pH to 6.0-8.0 by adding 5% NaOH. Titrate with appropriate preservative until pH of 6.0-8.0 has been reached. Freeze. Record the pH on the transport tube and requisition.
Stability:
8 hours ambient, 48 hours refrigerated, or 2 months frozen.