WBC's Lake Flashcards
WBC have what 2 functions
- destroy invaders and abnormal cells
2. clean debris (eg injury repair)
Myelocytic maturation series
myeloblast -> promyelocyte -> myelocyte -> metamyelocyte -> band neutrophil -> segmented neutrophil (B12 and Folate deficiency)
GM-CSF
granulocytes: BEN
Monocytes
Cell Stimulating Factor
G-CSF
Neutrophils stimulation and also cell proliferation and differentiation and maturation
where does the reticulocyte mature?
in the stroma
loses RNA before entering BVs as RBC
what part of the megakaryocyte becomes platelets?
cytoplasm
Nuclear altered cell morphology
pelger-huet (hyposegmentation of neutrophils)
hypersegmentation
cytoplasmic altered cell morphology DUE TO SEVERE BACTERIAL INFECTION
gaucher
niemann-pick
toxic granulation
dohle bodies = may-heglin blue inclusion
cytoplasmic altered cell morphology
alder-reilly chediak-higashi (elf ppl) may hegglin mucopolysacchridoses necrobiosis
increase in banded neutrophils
Left Shift
Pelger-huet is an example of ___segmentation of neutrophils
hypo
large, coarse, purple, azurophilic granules are found in ___-____ anomaly
Alder-Reilly
6 types of morphologic changes in WBC
left shift hypersegmentation hyposegmentation toxic granulation vacuolization dohle bodies
normal amt of PMNs and what are PMNs?
50-70%
segmented neutrophils
2nd most leukocytes?
lymphocytes: 20-40%
normal amt of WBC in CBC
4-12,000 cells/uL
coulter principle uses what to measures what?
uses electrical impedance: resistance/change in current-NaCl soln
Flow Cytometry uses what to measure what?
uses lasers: measures forward scatter-size, side scatter-complexity/granularity (how full is it?)
hypersegmentation occurs in what situations?
megaloblastic, B12/Folate/Iron deficiency
more than 3 cells with 5 lobes OR 1 cell with 6 lobes/100 cells = ___segmentation also known as ___ ___
hypersegmentation = right shift
Hyposegmentation: how many lobes and nucleus is what?
- Sepsis
- impaired cytoplasmic maturation
- high basophilic granules in neutrophils
Toxic Granulation
neutrophil cytoplasm filled with ____ = aid in Dx of Septicemia
vacuolization
systemic disease caused by multiplying microorganisms in systemic blood “blood poisoning” = ??
Septicemia
quantitative = MACRO changes = change in cell ____ both __ and __
Number
- absolute
- relative %