Clinical Pathology Flashcards Preview

Vet Nursing Study > Clinical Pathology > Flashcards

Flashcards in Clinical Pathology Deck (71)
Loading flashcards...
1

Problems with a slow bleed

Platelet clumping
Coagulation
Patient stress

Low BP can lead to a slow bleed

2

Problems with a fast bleed/ high suction

Haemoloysis (cell distortion)
Possible vein collapse
Possible pain

3

Serum is derived from?

Clotted blood

4

How is a sample mixed?

Inverted

5

Microscope powers

10x
40x
100x
1000x

6

FNA

Fine needle aspirate

7

Cytology slide

Patient ID
Exact site
Date

8

Are all slides stained inhouse ?

No

9

Cell layer thickness cytology slide:

Thin

10

How many 1 sec dips in diff quik

5

11

Label parts of sample after 30 mins
- plain tube
- EDTA tube

Plain tube: serum & clotted RBC

EDTA: plasma, buffy coat (WBC, platelets), red cells

12

What is found in plasma but is not found in serum?

Fibrinogen

13

Microscopic fibre formed when blood clots:

Fibrin

14

Why do we separate blood from clot for long term storage ?

To prevent chemicals leaching out of old and damaged cells

15

Prac methods of separating serum from clot:

Using pipette to siphon off serum

Serum separator tube (SST)

16

Most versatile anticoagulant

Heparin

17

Best anticoagulant for blood smears in mammals

EDTA

18

Use of citrate (blue) and flox (grey) tubes:

Citrate (blue): coag studies

Flox (grey): delayed glucose testing

19

What happens if serum is centrifuged before clot retraction occurs?

Serum will become a solid fibrinous gel because platelets are spun out before they have contracted fibrin in clot

20

Where should a sample be left for clotting ?

Room temp for 30mins

21

SST
- inverted?
- storage?
- centrifuged?
- sample?

Inverted 5 times
Left at room temp to clot
Spun down after 30 mins
Serum poured off within 60 mins

22

Which blood cells are responsible for clot retraction/ contraction?

Platelets (thrombocytes)

23

Why is it best to fast an animal before collecting blood?

Lipemia

24

Parts of blood smear

RBC (erythrocytes)
Platelets (thrombocytes)

25

Microhaematocrit tube

Plasma
Buffy coat (WBC, platelets)
Red cells

26

Anaemic dog and cat PCV

Dog <37%
Cat <30%

27

Healthy dog and cat PCV

Dog 45%
Cat 35%

28

Healthy dog TPP

70g/l

29

Read meniscus at ?

Bottom

30

Tests to diagnose dehydration

PCV and TPP