Cell ID

Question 1

Canine blood

Answer 1

Segmented neutrophils

Question 2

Canine blood

Answer 2

Monocytes

Question 3

Canine blood

Answer 3

Lymphocytes

Question 4

Canine blood

Answer 4

Long arrow - Eosinophil

Short arrow - Platelet

Arrowhead - Segmented neutrophil

Question 5

Canine blood

Answer 5

Long arrow - eosinophil

Short arrow - segmented neutrophils

Question 6

Canine blood

Answer 6

Arrows - nucleated red blood cells

Arrowheads - associated polychromatophilic erythrocytes

Question 7

Feline blood

Answer 7

Long arrow - feline basophil

Short arrow - platelet

Question 8

Feline blood

Answer 8

Long arrow - feline eosinophil

Short arrow - segmented neutrophil

Arrowhead - lymphocyte

Question 9

Can you list 3 key differences between dog and cat erythrocytes?

Answer 9

1 – dog erythrocytes have a central area of pallor, whilst this is not generally visible.
2 – Cat erythrocytes are smaller in size compered to dog erythrocytes.
3 – Anisocytosis is usually present in cats, whilst dog erythrocytes are usually more uniform in size.

Question 10

Answer 10

Band neutrophil

Question 11

Answer 11

2 = monocyte
3 = neutrophil

Question 12

Answer 12

Eosinophil

Question 13

Answer 13

Platelet

Question 14

Answer 14

10 - Platelet
11 - Neutrophil
12 - Eosinophil

Question 15

Answer 15

Stain precipitate

Question 16

Answer 16

Hypochromasia – seen in iron deficiency anaemia
(Some polychromatic rbcs are also present on this slide)

Question 17

Answer 17

Heinz bodies

Question 18

Answer 18

Acanthocytes - feline hepatic lipidosis and hemangiosarcoma

Question 19

Answer 19

Spherocytes - small round cells lacking in central pallor

Question 20

Answer 20

A marked leucocytosis is present – predominant wbc type is lymphocytes
Also no platelets are noted –the patient likely has thrombocytopaenia
The patient was diagnosed leukaemia.
The key point here is there are more lymphocytes than you would typically expect, and they appear abnormal.

Question 21

Answer 21

You can see normal erythrocytes and normal platelets.
You can also see normal neutrophils – in this case more than you would expect.
The patient had a leucocytosis

Question 22

Can you see evidence of regeneration?
Haematocrit is 24%

Answer 22

We can see evidence of polychromasia – this degree of polychromasia indicates adequate regeneration.

Question 23

This patient has a haematocrit of 12%
Is there any evidence of regeneration?

Answer 23

There is no evidence of polychromasia. The arrow shows agglutinated erythrocytes. It is likely that the patient had Immune mediated haemolytic anaemia.

Question 24

Answer 24

This slide shows a marked neutrophilia, with a left shift and mild toxic changes. (see article above for more details.

Question 25

Answer 25

The image shows a mild leucocytosis, with an eosinophilia and basophilia – see the article above for more details.