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other examples of secondary/peripheral organs

1. tonsils


2. appendix


3. peyer’s patches of intestine


4. mucosal-associated lymphoid tissue (MALT)


5. cutaneous-associated lymphoid tissue (CALT)

rapid and convenient technique for generating immunophenotypic data of cells

flow cytometry

flow cytometry is useful for the evaluation of:

1. leukemia


2. lymphoma


3. immunodeficiency

flow cytometry is based on______derived from the suspension of particles of a flowing stream of fluid

light scattering

flow cytometry is based on______derived from the suspension of particles of a flowing stream of fluid

light scattering

fluidics used by flow cytometry where cells are suspended

isotonic saline (sheath fluid)

flow cytometry is based on______derived from the suspension of particles of a flowing stream of fluid

light scattering

fluidics used by flow cytometry where cells are suspended

isotonic saline (sheath fluid)

laser light source of flow cytometry

solid state diode lasers

indicator of cell size

Forward Angle/Light Scatter (FSC)

indicator of cell size

Forward Angle/Light Scatter (FSC)

indicator of granularity/intracellular complexity

Right Angle/Side Scatter (SSC)

ALL

↑CD 10

AML

Î CD 34

AML

Î CD 34

most common fluorescent labeled antibodies

fluorescein isothiocyanate (FITC)

added to quantify cell subpopulation or cell components

fluorescent labeled antibodies

added to quantify cell subpopulation or cell components

fluorescent labeled antibodies

identifies surface and cytoplasmic antigen expression

fluorescent labeled antibodies

signals in FSC is detected by

photodiode

signals in FSC is detected by

photodiode

signals of fluorescence is detected by

photomultiplier tubes

specimen for flow cytometry

1. Whole Blood


2. Bone marrow


3. Body fluid aspirates


4. tissue sample

anticoagulant of choice in flow cytometry

1. EDTA


2. Heparin


3. Acid citrate dextrose

what is remove in the specimen prior to testing in flow cytometry

RBCs

uses Ficoll-Hypaque solution

density gradient solution

contains sodium diatrizoate and polysaccharide

uses ammonium chloride

erythrocyte lysing agent