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CLINICAL CHEMISTRY 2 > VENIPUNCTURE > Flashcards

VENIPUNCTURE Flashcards

marari trans

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1
Q

order of draw (color, additive, inversion)

A

yellow: blood culture,8-10
light blue: citrate/coagulation studies, 3-4
red: no additive, 5
green: sodium heparin, 8-10
lavender: edta, 8-10
gray: sodium oxalate, 8-10

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2
Q

the tourniquet must be applied how many inches above the venipuncture site?

A

3-4 inches above

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3
Q

tourniquet must not be left in the arm for how many minute/s?

A

1 minute

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4
Q

what will happen if the tourniquet is left on the arm for too long?

A

hemoconcentration

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5
Q

tube with additives will take how long for the blood to clot

A

30-60mins

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6
Q

what is the purpose of clot activators

A

accelerate clotting process

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7
Q

what top is commonly used in serum chemistry

A

gold top

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8
Q

anticoagulant tops

A

lavender
citrate
oxalate

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9
Q

needed for clotting by forming insoluble calcium salts

A

calcium

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10
Q

binds to thrombin in the plasma

A

heparin

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11
Q

inhibits glucose metabolism by blood cells

A

sodium flouride

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12
Q

what guage needle size is commonly used in adults

A

21G

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13
Q

what is the range guage of the two-way needle when drawing blood

A

19-23

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14
Q

what are the 3 methods in venipuncture

A

syringe method
vacuum method
winged/butterfly method

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15
Q

3 possible sources when collecting blood

A

venous blood
capillary blood
arterial blood

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16
Q

3 selection of veins

A

median cubital vein
cephalic vein
basilic vein

17
Q

why basilic vein is avoided

A

it is near the brachial artery/ there is an artery close to it

18
Q

sites to be avoided when doing venipuncture

A

burns
scars
tattoos
edematous patient
hematoma

19
Q

medical term for breast removal

A

masectomy

20
Q

lymphatic system is stagnant thus prone to infection

A

lymphostasis

21
Q

this is when double masectomy is done

A

lymphocytosis

22
Q

clean the venipuncture site with?

A

70% isopropyl alcohol

23
Q

what color is the sharps container

A

red

24
Q

most common injury in the lab

A

needle stick injury

25
Q

angle of syringe when performing venipuncture

A

30 degrees, bevel up

26
Q

when recapping the needle, we will use what technique?

A

fishing-out technique

27
Q

what is the preferrable position when doing venipuncture

A

supine or upright sitting position

CLINICAL CHEMISTRY 2 (9 decks)

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