Last Modified: 3/3/2021 8:56:31 AM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 3.0 mL Whole Blood in a Green Top Tube - Na Heparin
Collection Instructions:  
Transport & Storage: Temperature/Stability: 48 hours Ambient
Rejection Criteria: Specimen suitability will be determined by the flow cytometry department only
Reference Range:
Pediatric (less than 3 years)
CD 19 (B-cells): 11% - 45% 

CD 19 (B-cells): 4% - 25%
Critical Ranges:  
Test Comments:  
Methodology: Flow Cytometry
Clinical Significance:  
This test was developed and the performance characteristics determined by Parkview Health Laboratories. This test has not been cleared by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This test is used for clinical purposes. It should not be regarded as investigational or for research. This laboratory is certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88) as qualified to perform high complexity clinical laboratory testing.
Custom Panel: No


Turn Around Time: 48 to 72 hours
Days Performed: Monday, Wednesday, Friday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: CD19
EPIC Test Code: LAB3047
Alternate Test Names: CD 19; CD 19, Flow Cytometry
CPT Coding: 86355

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