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Physiology 1 > Lab 1 - Haematology > Flashcards

Lab 1 - Haematology Flashcards

1
Q

What are the different experiment at the lab?

A
  • Blod drawing
  • Determining blood clotting time
  • Determining hematocrit
  • Measuring the erythrocyte sedimentation rate
  • Determining the density of blood and blood plasma
  • Differential white blood cell counting
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2
Q

What is the appropriate size of the needle when venipuncture of small animals?

A

20-25 Gauge (G)

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3
Q

What is the appropriate size of the needle when venipuncture of large animals?

A

16-20 Gauge

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4
Q

What is the appropriate angel to hold the needle when venipuncture?

A

15-30 degrees

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5
Q

What are the venipuncture site of the Horse?

A

V. Jugularis

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6
Q

What are the venipuncture site of the Cattle?

A

V. Jugularis
V. coccygea
V. subcutanea abdominis

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7
Q

What are the venipuncture site of the Swine?

A

V. cava cranialis

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8
Q

What are the venipuncture site of the Sheep’s, Goats?

A

V. jugularis

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9
Q

What are the venipuncture site of the Dogs?

A

V. Cephalica antebrachii
V. Jugularis
V. Saphena

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10
Q

What are the venipuncture site of the Rabits?

A

V. auricularis lateralis

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11
Q

What are the venipuncture site of the Poultry?

A

V. axillaris

V. cutanea ulnaris

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12
Q

What will cause hematocrit and increase the white blood cell count?

A

Increased epinephrine levels as a result of excitation caused by blood withdrawal process itself will cause the hematocrit and white blood cell count to be increased.

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13
Q

Which color does the blood serum have?

A

Transparent, colorless, sometimes yellowish.

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14
Q

How do you get defibrillated blood? And what happens

A

By shaking the tube, the fibrinogen turns into fibrin.

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15
Q

Why does not blood coagulate in the body?

A

The blood getting into the cavities of the body gets defibrillated doe to the constant movement of the organs.

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16
Q

Name some anti-coagulating methods

A

Sodium Citrate

EDTA (Ethylene diamino tetraaccetic acid)

17
Q

What is heparin, and what does it do?

A

Heparin

Prevents the blood from coagulating by catalyzing the thrombin - antithrombin reaction.

18
Q

What are the three interrelated and overlapping steps of hemostasis?

A
  1. Vascular reaction
  2. Thrombocyte reaction
  3. Thrombolysis reaction
19
Q

Coagulation is caused by two different ways?

A
  1. Extrinct way - External tissue injury

2. Instrinct way - Injury of the intima of the vessels

20
Q

What are the coagulation cascade?

A

The cascade causes a fibrin net, formed by the fibrinogen of the plasma

21
Q

What does the clotting time tell us?

A

Blood clotting time informs us about the presence and the activity of the thrombocytes and the coagulating factors

22
Q

What is Lee-White method

A

A method to determine the bloodletting time.

The appearance of the first fibrin thread.

Physiology 1 (42 decks)

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