Specimen Type
Plasma
Performing Lab
Seattle Cancer Care Alliance Pharmacokinetics Lab
Epic ID
LAB00127
Lab Test Days
Tuesday-Saturday
Standard TAT
1 Day
Collection Information
Specimen Required
1-4 mL Blood
Container Type
Dark Green (Sodium Heparin)
Collection Instructions
Label blood tubes with the actual clock time drawn. For IV busulfan, draw times are related to the starting time of a 2 hour (120 minute) infusion. For instance, the 135 minute draw would be done 15 minutes after the end of infusion, the 150 minute draw would be done 30 minutes after the end of infusion, the 3 hour drawn would be done 1 hour after the end of infusion, etc. Immediately after specimen collection place on wet ice slurry and refrigerated at 4 C. Busulfan degrades rapidly at room temp. Submit each specimen to lab on wet ice immediately after collection.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Rejection Criteria
Received room temp
Test Volume Required
2 mL Plasma
Minimum Test Volume
0.5 mL Plasma
Processing Instructions
Keep sample on wet ice until centrifuged. Separate plasma as soon as possible and freeze. Labels must have patient name, MRN, date and actual clock time of draw. Include the fully completed Busulfan Pharmacokinetics requisition with the samples and ship frozen. Samples must be shipped on a minimum of 5 kg of dry ice the day they were drawn using an overnight carrier. Saturday deliveries require "Saturday Delivery" specified on the outside package. Prepare shipping materials and requisition a head of time to make the same day shipment run. When shipping label is created, send FedEx tracking number via Epic Chat to "HemOnc BMT Coordinators.
CPT Codes
82542
Revised
9/19/25
Initials
SA