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HelpAdenosine Deaminase, RBC
Clinical System Name
Miscellaneous Test
Synonyms
ADA
Sample Requirements
Specimen: Whole Blood
Container(s): Lavender/EDTA or Dark Green/Sodium Heparin
Preferred Vol: 2.0 mL
Minimum Vol: 1.0 mL
Note: Do not freeze. Transport 2.0 mL (1.0 mL Min.) whole blood refrigerated.
Processing Instructions
Reject due to: Hemolyzed specimens.
Spin: N
Aliquot: N
Temp: 2 - 4 C
Storage Location: CPA 3 refrigerator, Send Outs rack.
Off-site Collection: Do not freeze. Transport 2.0 mL (1.0 mL Min.) whole blood refrigerated.
Stability
| Specimen Type | Temperature | Time |
| Whole Blood | Room Temp | 15 d |
| Refrigerated | 15 d | |
| Frozen | Unacceptable |
Availability
| STAT | Performed | TAT |
| N | Su, T, Th | 3 - 6 d |
Performing Laboratory
ARUP Laboratories
500 Chipeta Way
Salt Lake City, UT 84108-1221
Phone Number: (800) 522-2787
Department
Department: Send Outs
Phone Number: (206) 987-2563
CPT Codes
84311
Methodology
Method: Kinetic Spectrophotometry
Analytical Volume: 1.0 mL Whole Blood
Limitations:
Send Out Instructions
| Reference Test Name: | Adenosine Deaminase, RBC |
| Reference Test Code: | 0083001 |
| Instructions: | Send out Monday - Friday with the ARUP courier. |
Description
Adenosine Deaminase (ADA) deficiency is an autosomal recessive disorder of purine metabolism primarily affecting lymphocyte development, viability, and function. Affected individuals have less than 1 percent of normal ADA catalytic activity in red cell hemolysates. ADA deficiency is the cause of 20-30 percent of SCID cases. If the patient has been recently transfused, ADA deficiency may be masked; interpret results with caution. Heterozygotes cannot be identified by this test.
Reference Ranges
400-900 mU/g Hb