Cytology Flashcards

1
Q

Is it ok to see a few yeast during ear Cytology?

A

Yes

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2
Q

When is an ear Cytology exam done?

A

When otitis externa is suspected

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3
Q

Where do you take samples from for ear swabs?

A

Junction of vertical & horizontal canals

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4
Q

Can you skip the heat fix and 1st 2 stains for ear swabs?

A

Yes

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5
Q

Yu use the oil immersion when examining under microscope. True or False.

A

True

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6
Q

How many fields should you scan for ear Cytology?

A

At least 10

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7
Q

What does Yeats look like?

A

Shoe shaped

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8
Q

A few yeasts under 100x is mild infection 1+ or moderate 2+

A

Mild infection 1+

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9
Q

A fairly even spread of yeast is mild 1 infection or moderate 2+

A

Moderate 2 +

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10
Q

What colour tube is used for FNA’s

A

Purple top

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11
Q

Exudates have the most proteins. True or false

A

True

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12
Q

Pure transudates have little to no protein. True or false

A

True

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13
Q

Modified transudates have some Yeast. True or false.

A

True

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14
Q

Whats the differences between artifact and non-artifact

A

Artifact

  • lysis of cells
  • too few cells to identify
  • the preparation Is too thick to read

Non- artifact
- Roulous formation is normal in horses and abnormal in dogs & cats
Clumping of cells like platelets

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15
Q

How can an FNA be non-diagnostic?

A

Too few cells

1/10 cells are ruptured due to aggressive FNA

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16
Q

What’s the best smear for FNA?

A

Monolayer smear

17
Q

What’s an indicator of bacterial infection?

A

If you see bacteria in the cell with the neutrophil

18
Q

Are mast cell tumors common in dogs or cats?

19
Q

What does heparin do?

A

Stops blood from clotting

20
Q

What does histamine do?

A

Causes allergic reactions like a rash

21
Q

What type of cell is a Mast cell tumour?

A

Round cell tumour

22
Q

What is Anisocytosis?

A

Malignancy.

Same type of cells but many different sizes

23
Q

Malignancy criteria:

A

Anisocytosis
Mitosis
Mitotic figures
Multiple nuclei in one cell

24
Q

What does black granules mean? And what type of cell?

A

Melanoma

Round cell tumour

25
What do purple granules mean? And what type of cell?
Mast cell tumour. | Round cell tumour.
26
What do round tumours with no granules mean? What type of cell?
Lymphoma. | Round cell tumor
27
When we see cancer cells and lots of inflammation, is it inflamed or infected?
Only inflamed.
28
What are mesenchymal cells?
Connective tissue cells Long strands Blue tail is the key to identity as mesenchymal cell
29
What's happening in IMHA?
The immune system is attacking the RBC's
30
What's the difference between IMHA and IMA, and the scelera difference?
The whites of the eye will be yellow in IMHA. | PCV will tell the difference
31
What is the anoestrus stage?
The cycle is at rest
32
What is the pro-oestrus stage?
Follicles in ovary are starting to grow May have blood Not receptive to males yet
33
What is the oestrus stage?
Dog is in heat | Receptive to Male
34
What is the di-oestrus stage?
The lining of the uterus is re-organised for the next cycle