H:L ratios Flashcards
1
Q
Describe a heterophil nucleus. What is their purpose?
A
Bilobed
- for bacteria destructino
Granules in cytoplasm
2
Q
Desrcribe a lymphocyte
A
Large nucleus
More clear cytoplasm
3
Q
What factors can affect Heterophil:Lypmphocyte ratio? How does it change?
A
ACTH/corticosterone application Social stress Food restriction Housing system - ^ H, v L in chronic stress - proportional to corticosterone assay but cheap and easier
4
Q
Is H:L reposne affected by acute stress?
A
NO
5
Q
How do thrombocytes appear microscopically?
A
Very small Often clumped Paler cytoplasm Vacuolated cytoplasm Irregular cell boundary
6
Q
What anticoagulant is used in blood tubes?
A
EDTA
7
Q
What staining method is used for H:L ratio counting?
A
Diff-Quick
8
Q
What type of leukocyte are heterophils?
A
Neutrophils
