UCSF Navigation Bar

UCSF Departments of Pathology & Laboratory Medicine Home Page

Lab Manual for UCSF Clinical Laboratories

Lab Manual for SFGH

Internal Resources

Click here for more information about laboratory operations and procedures

If you have additional questions regarding this test, please call: 415-353-1667

Search Our Test Menu

B-Cell ImmunoCompetency Panel

Item Value
Available Stat? No
Test code BCIP
Performed by Immunology
In House Availability Monday - Thursday, day shift
Method Flow Cytometry
Collection Instructions Do not draw samples for this test on Friday, weekends and UCSF observed holidays. Samples drawn on the day before holidays must be received in the lab by 12 noon.
Container type Lavender EDTA
Amount to Collect 3.0
Sample type Blood
Preferred volume 3.0
Min. Volume 2.0
UCSF Rejection Criteria Refrigerated sample received. Sample > 24 hours old when received.
Processing notes DO NOT refrigerate, store at room temperature and ship to China Basin
Units %
Normal range
Reference Range
%CD19+ of total lymphs 5.3 – 23.3
%CD20+ of total lymphs 4.8 – 22.0
%CD27+ of CD19+ B-cells 10.7 – 46.2
%CD27+/IgM+/IgD+ of CD19+ B-cells 1.6 – 23.1
%CD27+/IgM-/IgD- of CD19+ B-cells 4.8 – 24.9
%CD27+/IgM+/IgD- of CD19+ B-cells 0.5 – 6.2
%IgM+ of CD19+ B-cells 21.2 – 78.7
%CD38+/IgM- of CD19+ B-cells 0.5 – 5.4
%CD38+/IgM+ of CD19+ B-cells 1.0 – 8.1
%CD21+ of CD19+ B-cells 93.7 – 100.0
%CD21- of CD19+ B-cells 0.9 – 7.0


Note: Reference values are for ≥ 18 year olds. For pediatric ranges please see:
Piatosa, B, et al. 2010. B Cell Subsets in Healthy Children: Reference Values for Evaluation of B Cell Maturation Process in Peripheral Blood. Cytometry Part B (Clinical Cytometry) 788:372-381
Synonyms B-Cell ImmunoComp Panel, BCIP; B-cell Phenotyping Profile
Stability Room temperature, within 24 hours
Turn around times 2-3 days
CPT coding 88184; 88185 x 6
LDT or Mod FDA? Yes
Last Updated 7/13/2017 2:41:12 PM
Entry Number 1783
UCSF home page UCSF home page About UCSF Search UCSF UCSF Medical Center