Lab Review:Hematology (RBC arrangement to Hgb)

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Stacking of RBC's

rouleaux
Is rouleaux considered an artifact?

yes
Rouleaux is normal in what animal?

horses
Rouleaux is seen with high...GF

globulin and fibrinogen
Clumping

agglutination
When is agglutination seen?

immune-mediated disease
How do you tell the difference between rouleaux and agglutination?
- drop of saline
- rouleaux will separate and agglutination won't
AKA metarubricytes

nucleated cells
Nucleated RBC's are normal in:
- birds
- reptiles
- amphibians
RNA fragments

basophilic stippling
When is basophilic stippling seen?

lead poisoning
Dot inside cell made of nuclear remnants

howell-jolly bodies
When are howell-jolly bodies seen?

regenerative anemia
Dot on outside of cell made up of damaged hemoglobin

Heinz bodies
In what species are Heinz bodies normal?

cats up to 5%
If Heinz bodies are over 5% in cat blood what do they indicate?H D
- hyperthyroid
- diabetes mellitus
AKA immature RBC

reticulocyte
What stain is used to see reticulocytes?

NMB
What are the two types of reticulocytes in the cat?PA
- punctate
- aggregate
Older reticulocyte less dots

punctate
Newer reticulocyte fresh from bone marrow and has more dots

aggregate
PCT/HCT

packed cell volume/hematocrit
PCT/HCT determines the % of what in circulating blood volume?

RBC's duh
How long is a hematocrit tube centrifuged for dog and cat blood?

3-5 min
How long is a hematocrit tube centrifuged for sheep and goat blood?

twice as long 6-10min
Hemoglobin is responsible for carrying

o2 and co2
Hemoglobin assists is regulating what by eliminating co2?

acid-base balance
What is hemoglobin used to determine?

the RBC indices
What is hemoglobin measured in?

g/dl
How do you get the hemoglobin amount?
- 1/3 PCV
- so PCV divided by 3

Author

heather.dundas

239603

Card Set

Lab Review:Hematology (RBC arrangement to Hgb)

Description

vti

Updated

2013-10-09T02:26:05Z