venipuncture equipment chapter 8

Question 1

equipment needed for venipuncture

Answer 1

Antiseptic cleaning solutions
bandages
collection tubes
gauze pads
gloves
marking pens
needles
needle holders
needle disposal containers
tourniquets
wing infusion sets(butterflies)

Question 2

how often should empty and disinfect the tray?

Answer 2

once a week or more often
w a 10% bleach solution

Question 3

the smaller the gauge number

Answer 3

the larger the lumen diameter

Question 4

the larger the number

Answer 4

the smaller the lumen

Question 5

needed packs are color coded by?

Answer 5

gauge
for easy identification

Question 6

choice of gauge ?

Answer 6

is determine by type of collection
collection tube size and condition of patient

Question 7

largest diameter needles routinly used in phlebotomy is …

Answer 7

21-22

Question 8

blood banks uses needle size…

Answer 8

16-18 gauge

Question 9

smallest needles commonly used

Answer 9

23 gauge
(for collection from small , fragile veins

Question 10

gauge for rutine adult collection

Answer 10

21 gauge

Question 11

large needle deilver blood more quickly BUT

Answer 11

are more damaging to the tissue and may collapse the vein

Question 12

small needles are less damaging BUT

Answer 12

slower collection and the blood cells may be hemolyzed as they pass through the narrower opening

Question 13

COLOR CODED NEEDLES
blsck
green
yellow

Answer 13

22- 1inch,1 1/4 1 1/2
21- 1inch,1 1/4 1 1/2
20- 1/2 inches

Question 14

Evacuated Collection Tubes

Answer 14

Color-coded collection tubes for draws
* Each tube contains an additive
* Expiration date

Question 15

Tops

Answer 15

Thick rubber stoppers or rubber stoppers covered with plastic tops
* Minimizes the chance of aerosol spray forming when the stopper is removed
* Shatter-resistant plastic, OSHA mandates

Question 16

vacuum

Answer 16

Inside of each tube, allows for easy flow of blood
* Each tube vacuum is determined so that the tube fills to the required volume of blood
* If vacuum is lost blood will not flow, and insufficient quantity results into improper
blood to additive ratio

Question 17

tube additives

Answer 17

More than one additive in tube
* Include anticoagulants tp prevent clotting
* Clot activators to promote clotting
* Thixotropic gel or polymer gel to separate
components
* Preservatives and inhibitors of various cellular
reaction

Question 18

tubes after draw

Answer 18

TUBES MUST BE INVERTED after draw to
mix blood with additive
* Gently turn the tube over and then back
upright again = 1 inversion
*Tubes inverted 5 to 8 times depending on
tube