T3 Lymphocyte Count (FLOW Cytometry)

Message

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

COLLECTION DAYS EFFECTIVE 10/24/22: MON., TUES.
(Testing performed TUES AND WEDS).

This is NOT a Thyroid function test. This test is usually performed on transplant patients. Any specimen collected on Friday and/or the weekday prior to a Holiday must be called by 2:00 pm for appropriate arrangements to be made: Contact Flow Cytometry (937-208-6687 or 1-800-686-2252 option 3, option2).

Test Code

CD3

Alias/See Also

71049

CPT Codes
86359

Includes

% T cells (CD3) and Total Absolute T cells (CD3).

Preferred Specimen

Venous Peripheral Blood: 5 mL K3EDTA (lavender top) tube with the total WBC and percent lymph count or 5 mL Sodium Heparin (dark green top) tube and an K3EDTA (lavender top) tube with the total WBC and percent lymph count.

Minimum Volume

(minimum 2 - 3 mLs)

Instructions

K3EDTA; Avoid Hemolysis, gently invert 10 times.

Transport Container

K3EDTA (lavender top) tube or Sodium Heparin (dark green top) tube.

Transport Temperature

Room Temperature and transport without delay.

Specimen Stability

Room Temperature = 24 hours post collection
Refrigerated = unacceptable
Frozen = unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Rejected for gross hemolysis, clotted. Microcontainers; finger and heel sticks

Methodology
Flow Cytometry

Setup Schedule

Analysis performed Monday - Friday 7:00 am - 6:00 pm and on weekends for transplant patients.
RFMVH

Report Available

1 day

Clinical Significance

To evaluate the absolute value of T lymphocytes in transplant patients.

Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

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.