Hematology Flashcards

1
Q

How much blood should be drawn to run tests?

A

draw 3x the amount necessary to accomplish tests

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2
Q

What is the anticoagulant of choice for most mammals?

A

EDTA

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3
Q

What is the anticoagulant of choice for birds and reptiles?

A

heparin

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4
Q

What do you see in stress leukograms?

A

mature neutrophilia, monocytosis, lymphopenia, eosinopenia

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5
Q

What can contribute to stress leukograms?

A

fear, excitement, struggling, stress, treatment, restraint

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6
Q

When does sample degradation occur?

A

begins immediately after collection

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7
Q

What happens if a blood sample is not ran right away and if left out in room temperature?

A

glucose drops by 10% every hour it is not refrigerated

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8
Q

When do you see schistocytes?

A

DIC

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9
Q

When do you see acanthoytes?

A

liver dz

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10
Q

When do you see echinocytes?

A

kidney dz

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11
Q

When do you see spherocytes?

A

IMHA

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12
Q

When do you see stomatocytes?

A

liver dz

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13
Q

What is a poikilocyte?

A

irregular shaped RBC

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14
Q

What is the average RBC size in a canine?

A

7 microns

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15
Q

What is anisocytosis?

A

variation is the size of RBC
NOMRAL IN COWS

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16
Q

Rouleaux is normal in _____________.

A

horses

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17
Q

When is basophilic stippling seen?

A

lead poisoning

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18
Q

What does HgB assist in?

A

assists in acid base regulation

19
Q

What is HgB measured in?

A

g/dL

20
Q

How can you calculate HgB?

A

PCV/3

21
Q

What does MCV measure?

A

cell size

22
Q

What does MCH measure?

A

HgB weight

23
Q

What does MCHC measure?

A

HgB concentration

24
Q

What are reticulocytes?

A

immature erythrocytes still containing ribosomes

25
Q

Cats possess ______ forms of reticulocytes.

A

2

26
Q

What reticulocytes do cats have?

A

aggregated and punctated

27
Q

In cats, what reticulocytes are counted?

A

aggregated

28
Q

What is the buffy coat made up of?

A

WBCs, platelets, NRBCs

29
Q

What is a normal buffy coat?

A

1-2%

30
Q

In what species are platelets clumps commonly found in?

A

cats and cows

31
Q

What is primary hemostasis?

A

vessel spasm and formation of platelet plug

32
Q

What is secondary hemostasis?

A

coagulation cascade, ends in fibrin formation

33
Q

What are the primary hemostatic tests?

A

platelet count and bleeding time

34
Q

What are the secondary hemostatic tests?

A

prothrombin time (PT), partial thromboplastin time (PTT), PIVKA, capillary coagulation

35
Q

All blood cells stem from the _________________________.

A

pluripotent cell

36
Q

What are the five types of leukocytes?

A

Basophils, Eosinophils, Neutrophils, Lymphocytes, Monocytes

37
Q

Which leukocytes are granulocytes?

A

Basophils, Eosinophils, Neutrophils

38
Q

Which leukocytes are phagocytes?

A

Monocytes, Eosinophils, Neutrophils

39
Q

Another name for a WBC count is _____________.

A

differential

40
Q

Most abundant WBC is ___________.

A

neutrophil

41
Q

Least abundant WBC is _____________.

A

basophil

42
Q

What is a left shift?

A

band neutrophils are seen

43
Q

When are basophils seen?

A

acute allergic reactions

44
Q

Is a relative or an absolute count more important?

A

absolute