a (needles + other infos related)

Question 1

Advantages:
* Widely available
* Least expensive
* Comes in wide range of needle lengths and gauges
* Does not require special training
* Can be used for blood drawing in pediatric population
* For patient with small or difficult veins, blood drawing can be easier than an evacuated tube system
* If heparinized, can be used for arterial blood drawing

Answer 1

Hypodermic single-use needle and syringe

Question 2

Disadvantages:
* Requires blood transfer, creating additional risk for needle-stick injuries or blood splashing
* Difficult to draw large or multiple blood samples
* A smaller syringe and pediatric laboratory tube should be used for pediatric patients

Answer 2

Hypodermic single-use needle and syringe

Question 3

Advantages:
* Safer than using hypodermic needle and syringe
* Eliminates blood transfer
* Allows numerous blood samples to be collected through single venipuncture

Answer 3

Vacuum-tube systems & Multisample needles

Question 4

Disadvantages:
* Requires user to be skilled in its use
* Reuse of needle holder (tube holder) creates risk for needlestick injuries during disassembly
* Mixing components from different manufactures can create a problem during use
* A smaller tube with a reduced vacuum should be used for pediatric patients
* Higher cost

Answer 4

Vacuum-tube systems & Multisample needles

Question 5

Advantage:
* Retractable; prevent needle-stick injuries

Answer 5

Lancets

Question 6

It is is indicated by a number that is related to the diameter of the lumen.
* A needle’s diameter and gauge have an inverse (opposite) relationship; that is, the higher the gauge number, the smaller the actual diameter of the needle

Answer 6

Gauge

Question 7

Gauge #?
Needle Type:
* Special needle attached to collection bag

Typical Use:
* Collection of donor units, autologous blood donation, and therapeutic phlebotomy

Answer 7

15-17

Question 8

Gauge #?
Needle Type:
* Multisample
* Hypodermic

Typical Use:
* Sometimes used when large-volume tubes are collected or large-volume syringes are used on patients with normal-size veins

Answer 8

20

Question 9

Gauge #?
Needle Type:
* Multisample
* Hypodermic

Typical Use:
* Considered the standard venipuncture needle for routine venipuncture on patients with normal veins or for syringe blood culture collection

Answer 9

21

Question 10

Gauge #?
Needle Type:
* Hypodermic

Typical Use:
* Used primarily as a transfer needle rather than for blood collection; safety issues have diminished use

Answer 10

18

Question 11

Gauge #?
Needle Type:
* Multisample
* Hypodermic

Typical Use:
* Used on older children and adult patients with small veins or for syringe draws on difficult veins

Answer 11

22

Question 12

Gauge #?
Needle Type:
* Butterfly

Typical Use:
* Used on the veins of infants and on difficult or hand veins of adults

Answer 12

23

Question 13

Color coding: 20-gauge

Answer 13

Yellow

Question 14

Color coding: 21-gauge

Answer 14

Green

Question 15

Color coding: 22-gauge

Answer 15

Black

Question 16

Most multisample needles come in —– lengths

Answer 16

1- or 1.5-inch

Question 17

Syringe needles come in many lengths, however, —- are most
commonly used for venipuncture

Answer 17

1- and 1.5-inch

Question 18

Butterfly needles are typically —– long

Answer 18

1⁄2 to 3⁄4 inch