chapter 8 part 2

Question 1

Tourniquet

Answer 1

impedes venous blood flow out of the arm, causing veins to bulge
(a strip latex or nonlatex material tied around the upper arm}

Question 2

inpatients

Answer 2

have been admitted to a hospital
(usually draw their blood at the bedside)

Question 3

types of tourniquet

Answer 3

latex - inexpensive an disposable
non latex - made from synthetic rubber or nitrile

Question 4

outpatients

Answer 4

usually come to you at phlebotomy drawing station in clinic or hospital

Question 5

Venoscope II transiluminator and Accu Vien

Answer 5

devices that use high intensity, dual wavelength LED light that shines a bright light through the pt,s skin

Question 6

antiseptic

Answer 6

refers to an agent to clean living tissue
NOTES
used to clean the pt.s skin before routine
venipuncture to prevent contamination

should be left on the skin for 30-60 seconds
DO NOT FAN OR BLOW

70% ISOPROPYL ALCHOL {rubbing alchol}

Question 7

how long do pts. on aspirin or anticoagulant meds need for blood to stop after draw?

Answer 7

10-15 mins

Question 8

needle gauge

Answer 8

describes the diameter of the needles lumen (the hollow tube within the shaft

Question 9

most common double needle

Answer 9

multisample (STRAIGHT) needle (has retractable rubber sleeve that covers the second tip when it is not inserted into a tube)
remains in place the pts. vein while one tube is replaced with another
sleeve keeps blood from leaking on or in adapter

Question 10

syringe

Answer 10

useed for pts. w fragile or small veins.
- used when the vacuum of the collection tube is likely to collapse the vein

suction can be applied gradually, by slowly drawing back the plunger
syringe provides a controlled
gentle vacuum for fragile veins

22 GUAGE

Question 11

also a syringe needle

Answer 11

hypodermic needle

Question 12

Winged Infusion Set or Butterfly

Answer 12

Used on small veins
* Hand draws
* Elderly and pediatrics
* Needle size is 23 gauge

Question 13

TUBE HOLDER (NEEDLE ADAPTER)

Answer 13

Insure stable connection between tube and needle
* Translucent plastic
* Top end has small hole where the sheathed needle is
screwed in
* Bottom end is wide for tube
* Never reuse, OSHA regulation

Question 14

ADVANCEMENT MARK

Answer 14

on adapters indicating how far the tube can be pushed in w/o losing vaccum

used only once and discarded while still attached to the needle

Question 15

Plasma

Answer 15

the fluid portion of blood, including fibrinogen and other clotting factors

Question 16

plasma is obtained by

Answer 16

collecting whole blood in a tube containing anticoagulants that prevent clotting
then centrifuged and the plasma is aspirated(removed by suction) from the top of cells

Question 17

serum

Answer 17

fluid portion of blood that remains after clotting
clots trap cells, platelets, and clotting factors
NO ANTICOAGULANT is used when collecting serum samples

Question 18

how long does complete clotting take?

Answer 18

30-60 minutes

Question 19

additives

Answer 19

different chemicals designed to promote or prevent certain changes in the blood sample which allow accurate measurement of analytes in the pts. blood