Busulfan IV Q24

Test Code
10339


CPT Codes
80299<br>Limited Access Code

Preferred Specimen
4 mL plasma collected from each of twelve sodium heparin (green-top) tubes - See Instructions
(Pediatric: 1 mL minimum)


Instructions

Authorization letter needs to arrive before submission from requester.

- Draw minimum 1 mL (Pediatric) to 4 mL (Adult) of blood into 4-mL sodium heparin green-top blood tubes.

- Busulfan degrades quickly at room temperature. Each sample should be kept in wet ice slurry or refrigerated at all times. Centrifuge them as soon as possible at 4 °C. Separate the plasma from each sample and transfer it to individual 4 mL plastic tubes. Immediately freeze these plasma samples at -20 °C.

- All samples have to be labeled with patient name, Medical Record #, date and actual clock time of the blood draw. Two unique identifiers and clock times are REQUIRED or samples can be rejected.

- Samples must be shipped on a minimum of 3 kg of dry ice using an overnight carrier. Samples that arrived thawed will not be analyzed.

- The REQUISITION SHEET for particular regimen, IV Q6 hr or test dose, IV Q24 hr, and Oral Q6 hr is provided below. It is required to be sent with the samples. Patient identifiers must be matched with those on the collected samples mentioned above. Also, our requisition serves as physician's order and must be signed by the attending physician or designee/caregiver according to the College American Pathologists (CAP) requirement.

The samples must arrive in the lab in the form of plasma, not whole blood.

The labels on the plasma tubes must consist of at least two patient identifiers, usually patient names and medical record numbers.

The samples must be shipped with a requisition which consists of the information of patient's demographics, dosing and regimen, sample collection clock times, and possible drug interactions.

The requisition must be signed by a physician or a designee as patient's care giver.



Transport Container
Plastic tubes


Transport Temperature
Frozen


Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
The samples must arrive in the lab frozen


Methodology
Liquid Chromatography/Mass Spectrometry • Gas Chromatography Mass Spectrometry

Setup Schedule
Set up: Mon-Sat; Report available: 2-3 days


Reference Range
See Laboratory Report




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.