blood smear

Question 1

Identify the cells:

Answer 1

Question 2

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Answer 2

Stippled background
Nuclear streaming
Degenerate neutrophils
Intracellular bacteria
–> septic peritonitis

Question 3

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Answer 3

Question 4

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Answer 4

Question 5

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Answer 5

Question 6

interpret this blood smear

Answer 6

Marked leucocytosis
Neoplastic cells –> Acute leukaemia
(Potentially lymphocytic)

Question 7

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Answer 7

Question 8

Answer 8

Question 9

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Answer 9

keratocytes - erythrocytes with a blister-like vesicle, which may rupture, leaving a ‘bite-shaped’ defect in the cell outline or one or two horn-like projections on the same side of the cell.

Question 10

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Answer 10

Question 11

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Answer 11

Question 12

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Answer 12

Neoplastic cells –> Acute leukaemia
(Potentially myelomonocytic)
Associated neutropenia, thrombocytopenia and anaemia

Question 13

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Answer 13

Question 14

what is the other name for polychromatophils?

Answer 14

reticulocytes

Question 15

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Answer 15

Question 16

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Answer 16

Question 17

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Answer 17

Heterophilia
Toxic changes (reduced granularity, cytoplasmic basophilia)

Question 18

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Answer 18

Question 19

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Answer 19

Significant anisocytosis
Poikilocytosis (acanthocytes, echinocytes)
Polychromasia

Question 20

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Answer 20

Neutrophils: small occasionally polychromatic cytoplasmic granules

Question 21

Identify the cells:

Answer 21

Question 22

describe this blood smear:

Answer 22

Microfiliaria

Question 23

describe this blood smear:<

Answer 23

Microfiliaria

Question 24

Identify the cells:

Answer 24

Marked neutrophilia
Toxic changes (Döhle bodies, cytoplasmic basophilia)

Question 25

# Identify the cells:

Answer 25

Question 26

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Answer 26

Question 27

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Answer 27

Left shift --> band neutrophils Toxic changes (Döhle bodies, cytoplasmic basophilia)

Question 28

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Answer 28

Microcytosis Hypochromasia * anaemia descriptors

Question 29

# Identify the cells

Answer 29

Reduced erythrocyte density No significant polychromasia Acanthocytes Target cells (codocytes) Elliptocytes = Poikilocytosis

Question 30

what is the name of the cell indicated by the arrows?

Answer 30

polychromatophils (reticulocytes)

Question 31

what is a common condition associated with the presence of acanthoctyes?

Answer 31

portosystemic shunt

Question 32

what is a common cause of normocytic, normochromic anaemia?

Answer 32

chronic illness - suppression of the bone marrow, causing normocytic, normochromic Anaemia

Question 33

impendance analysisers distinguish cells based on ....?

Answer 33

size

Question 34

what type of miscount can occur in an analyser when there is marked left shift and toxic changes in neutrophils?

Answer 34

monocytosis

Question 35

what is the most likely cause of the changes observed in these neutrophils?

Answer 35

inflammation

Question 36

a 4yo WHWT presents collapsed with a recent history of intermittent diarrhoea. what would be your main suspicion with haematology results of, increased WBCs, neutrophilia and eosinophillia?

Answer 36

hypoadrenocorticism

Question 37

A dog presents with a history of lethargy and weakness. On haematology the WBC count is > 100,000 and most of the cells look like in the image provided. What is the most likely diagnosis

Answer 37

acute leukaemia

Question 38

A 12 y/o cat presents with a history of lethargy and hyporexia. You palpate a mass on the right kidney and take a blood sample. The HCT is 65%. What is the most likely diagnosis?

Answer 38

inappropriate secondary erythrocytosis