MAGNESIUM, body fluid (087-0663)
CPT 4 Code: 83735
Test Order Mnemonic: MG BF
Test Includes: Magnesium and the source and
description of the fluid
Lab: Clinical Chemistry
Request Form: Write in on Routine Chemistry Form 1
Storage Instructions: Store at 2-8°C if not
received in the lab within 4 hours after collection
Causes for Rejection: Specimen too viscous for
sampling
Availability: Samples are received 24 hours per day
at Sample Management, Room 5.136 McCullough.
Turnaround Time: Routine: 24 hours; STAT: 1 hour
Special Instructions: List the source of
the fluid on the request form.
Specimen: Body fluids from all sources
Volume: 2 mL
Minimum Volume: 1 mL
Container: 10 mL plastic, conical, capped tube
Test Method: Colorimetric
Reviewed/revised April 2007 by P. Harris
