Specimen

Random Urine

Collection Medium:

Minimum:

10-15 mL random urine may be submitted if patient is symptomatic.

Delivery Instructions:

Deliver to laboratory immediately after collection.

Specimen
Instructions:

Instructions for choline load (patient non-symptomatic).
a. Collect a random specimen and label it "pre-load".
b. Give a choline dose of 50 mg/kg (not to exceed 3 g of choline
   bitartrate - found in health food stores).
c. Collect the entire specimen between 6-12 hours following the
   choline dose; label this specimen "post-load".
d. Keep refrigerated during specimen collection.
e. Mix well and send a 10-15 mL aliquot for testing.

Analytic Time:

4-6 weeks

Comments:

NOTE:  pH must be acidified to <5.0.  Send in glass screw-cap top 
tubes.

CPT Code:

80500, 82491

See Additional Information:
Specimens Requiring Immediate Delivery