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Hematology > Needle Sizes > Flashcards

Needle Sizes Flashcards

1
Q

Why is needle size important?

A

Choose correct size to protect vein and to prevent damage to bloods

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2
Q

What can be caused by too much back pressure?

A

It will damage the blood cells

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3
Q

Is it possible to damage blood cells with a large needle?

A

Yes–with too much back pressure

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4
Q

Is it possible to preserve cells with a small needle?

A

Yes–but you must allow the blood to fill the needle hub & fill crit tubes or GENTLY aspirating with a 1 ml syringe

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5
Q

When is needle/syringe size not crucial?

A

When the test being done isn’t affected by cellular damage

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6
Q

What does the needle length depend on?

A

the species being sampled

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7
Q

Needle length for birds/small pets like rabbits/ferrets?

A

3/8-1/2 inch

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8
Q

Needle length for most dogs & cats (unless obese)?

A

3/4-1 inch

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9
Q

Needle length for large animal?

A

1-3 inch

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10
Q

Which species requires a 3” needle?

A

swine (anterior vena cava)

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11
Q

venipuncture sites for dog

A

jugular, cephalic, lateral saphenous

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12
Q

Dog jugular

A

20 ga

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13
Q

Dog cephalic

A

22 ga

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14
Q

Dog lateral saphenous

A

25 ga

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15
Q

Venipuncture sites for cat/cat-sized dog

A

jugular, cephalic, femoral

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16
Q

Cat/cat-sized dog jugular

A

22 ga

17
Q

Cat/cat-sized dog cephalic

A

25 ga

18
Q

Cat-cat-sized dog femoral

A

25 ga

19
Q

Horse venipuncture site

A

jugular

20
Q

horse jugular

A

18 ga

21
Q

Cattle venipuncture site

A

jugular, tail vein (safer)

22
Q

Cattle jugular

A

18 ga

23
Q

Cattle tail vein

A

20 ga

24
Q

Sheep/goats venipuncture site

A

jugular

25
Q

Sheep/goat jugular

A

20 ga

26
Q

Hog venipuncture site

A

AVC, ear vein

27
Q

hogs AVC

A

16 GA–3” long

28
Q

Hogs ear vein

A

22 ga

29
Q

Avian venipuncture sites

A

jugular, cutaneous ulnar, medial metatarsal

30
Q

Avian jugular

A

<25 ga

31
Q

Avian medial metatarsal

A

<25 ga

32
Q

Avian cutaneous ulnar

A

<25 ga

Hematology (3 decks)

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