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Lab Test Dictionary

ADA/PNP, Deoxy ATP Level


Ped Cell Deoxy ATP Level, RBC Deoxy ATP Level, Adenosine Deaminase, PEG-ADA; Adagen Level

Specimen Type

Whole Blood

Performing Lab

Duke Research-Dr. Hershfield

Epic ID

Other Reference Test

Collection Information

Specimen Required

2 mL Whole Blood

Container Type

Dark Green (Sodium Heparin)

Collection Instructions

Whole blood in an EDTA lavender-top tube is also acceptable. Collect only Monday-Thursday only. Ship same day as collected. If patient has received RBC transfusion within 2 months, write "TRANSFUSED" on the request for testing. Best to draw in MORNING to avoid washed cell procedure.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: Whole Blood Only; Refrigerated: Unacceptable; Frozen: Plasma and RBC Only

Test Volume Required

2 mL Whole Blood

Minimum Test Volume

2 mL Whole Blood

Processing Instructions

If there is a delay in shipping, blood must be separated into plasma and washed, packed RBC. Try to maintain sample at colde temperature during separation and washing of RBC (not critical). Plasma: Transfer 0.2-1 mL to labeled tube (microfuge tube or screw cap plastic freezer vial). Red Cells: Wash with normal saline or PBS. Completley remove supernatant (important). Store the washed RBC and the plasma frozen. Once frozen, do not thaw. Then, ship both the plasma and washed, packed RBC on dry ice.


Research only, no charge. Contact Dr. Michael Hershfield at Duke University for questions regarding testing and requirements at (919) 684-4184.

CPT Codes

Research only, no charge.