CPT 4 Code: 83605

Test Order Mnemonic: LA CSF

Lab: Clinical Chemistry

Request Form: Routine Chemistry Form 1

Storage Instructions: Refrigerate at 2-8°C.

Causes for Rejection: Improperly labeled specimen

Availability: Samples are received 24 hours per day at Sample Management, Room 5.136 McCullough.

Turnaround Time: 1 hour

Specimen: CSF

Volume: 1 mL

Minimum Volume: 0.5 mL

Container: Plastic tube with tight-fitting lid

Reference Ranges: 0.7-2.1 mmol/L

Test Method: Colorimetric

Reviewed/revised April 2007 by P. Harris