Comparative Hematology (ATE2639L) Flashcards
1
Q
Horse
RBC Morphology
A
- Rouleaux is normal
- Similar size to cats (d: 5-6 mm)
- Biconcave shape
- No nucleus; lack central pallor
2
Q
Horse
RBC Maturation
A
- RBCs completely mature in bone marrow
- Only mature cells seen in circulation
- Retic count done on bone marrow when needed
3
Q
Horse
WBC
A
Neutrophils and Lymphocytes most common
4
Q
Horse
Platelets
A
Stain poorly
5
Q
Horse
Fibrinogen Level Increase
A
Increases With
* inflammation
* cancer
* chronic disease
6
Q
Horse
Fibrinogen Level Decrease
A
Decreases With
* DIC
* liver failure
7
Q
Horse
Sample Collection
A
- EDTA anticoagulant best
- Mix samples thoroughly before testing
- Jugular vein most often used
- Collect when horse is at rest
8
Q
Horse
Splenic Contractions
A
- Can occur with excitement (epinephrine release causes contractions)
- Rapidly sends RBCs in large amounts into peripheral blood
- Can increase PCV up to 40%
- Reason why horse blood should be collected with horse at rest
9
Q
A
Horse Eosinophil
10
Q
A
Horse Basophil
11
Q
A
Horse Neutrophil
12
Q
A
Horse Monocyte
13
Q
A
Horse Lymphocyte
14
Q
Cow
WBC
A
Lymphocytes outnumber neutrophils
15
Q
Cow
Platelet
A
Clumping normal
16
Q
Cow
Venipuncture
A
- Use Jugular or Coccygeal vein
- Collect in EDTA tube
17
Q
Cow
RBC Morphology
A
- More anisocytosis seen than in any other domestic species
- Acanthocytes and Heinz Bodies normal due to fertilizers
- Basophilic stippling seen in young RBCs
18
Q
A
Cow Eosinophil
19
Q
A
Cow Basophil
20
Q
A
Cow Neutrophil
21
Q
A
Cow Lymphocyte
22
Q
A
Cow Monocyte
23
Q
Goat (Caprine)
RBC Morphology
A
- Smallest RBCs of domestic species
24
Q
Goat (Caprine)
WBC
A
Lymphocytes outnumber neutrophils
25
Goat (Caprine)
Venipuncture
* Best done at jugular vein
* EDTA tube used
