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HelpTest Code LAB3368 Perforin/Granzyme B Analysis
Additional Codes
PRF GRNZ B
Clinical System Name
Perforin/Granzyme B Analysis
Synonyms
HLH: Perforin/Granzyme B by flow
Granzyme B
Sample Requirements
Specimen: Whole Blood
Container(s): Lavender/EDTA or Dark Green/Sodium Heparin
Preferred Vol: 2.0 mL
Minimum Vol: 1.0 mL (2.0 mL for Dark Green/Sodium Heparin)
Note: Samples must be drawn Monday through Thursday, 1000 - 1400 ONLY. Samples drawn outside of these times will be rejected. If drawn outside of the times, contact the Send Outs department at ext. 7-2563 for further clarification. Send sample(s) to Main Lab immediately after collection. Specimens are stable for only 24 hours at room temperature.
Processing Instructions
Reject due to: Frozen, clotted, hemolyzed or centrifuged specimens. Specimen collected in an unacceptable anticoagulant.
Spin: N
Aliquot: N
Temp: RT
Storage Location: Affix a large Epic label to the sample(s), place in the room temperature Send Outs rack, and notify the Send Outs department.
Off-site Collection: No regional site collections.
Stability
| Specimen Type | Temperature | Time |
| Whole Blood | Room Temp | 24 h |
| Refrigerated | Unacceptable | |
| Frozen | Unacceptable |
Availability
| STAT | Performed | TAT |
| N | M - F | 4 - 6 d |
Performing Laboratory
Cincinnati Children’s Hospital
Diagnostic Immunology Laboratory
DIL - Rm R2328
3333 Burnet Avenue
Cincinnati, OH 45229-3039
Phone: (513) 636-4685
Department
Department: Send Outs
Phone: (206) 987-2563
CPT Codes
88184, 88185 (x4), 88187
Methodology
Method: Flow Cytometry
Analytical Volume: 1.0 mL Whole Blood
Limitations:
Reference Range
Interpretive report is provided.
Send Out Instructions
| Reference Test Name: | Perforin/Granzyme B |
| Reference Test Number: | 2903500 |
| Instructions: | Ship ambient, Monday through Wednesday, via FedEx Priority Overnight. Friday and Saturday deliveries are not accepted. |