Chapter 7: Venipuncture Equipment

Question 1

Phlebotomy Tray contains:

Answer 1

collection tubes, tube holders, multisample needles, syringes, butterflies, blood transfer devices, tourniquets, alcohol pads, quaze, bandages, gloves, microcollection equipment, and sharps container

Question 2

evacuated tube system

Answer 2

most common method, blood collected into evacuated tube, double pointed needle

Question 3

needles length

Answer 3

1 to 1.5 inches

Question 4

butterfly needle length

Answer 4

0.5 to 0.75 inches

Question 5

needle gauge

Answer 5

smaller gauge bigger the needle

Question 6

largest gauge needle

Answer 6

16 gauge

Question 7

smallest gauge needle

Answer 7

25 gauge; used for infants; prone to hemolysis

Question 8

green needle

Answer 8

21 gauge

Question 9

black needle

Answer 9

22 gauge

Question 10

blue needle

Answer 10

23 gauge

Question 11

Lavender

Answer 11

K EDTA binds calcium to prevent clots, used for hematology

Question 12

Pink

Answer 12

K EDTA, binds calcium

Question 13

White

Answer 13

K EDTA binds calcium, gel separators migrate between plasma and the cells for plasma recovery

Question 14

light blue

Answer 14

liquid sodium citrate binds calcium to prevent clots, used for coag studies, must be filled to top

Question 15

Black tube

Answer 15

sodium citrate; used for sedimentation rates

Question 16

green

Answer 16

sodium-, lithium-, or ammonium- heparin stops coag cascade;used for chem tests

Question 17

light green tube

Answer 17

heparin and gel separator

Question 18

Gray tube

Answer 18

potassium oxalate binds calcium; sodium flouride which preserves glucose, alcohol, and lactic acid concentrations

Question 19

royal blue tube

Answer 19

special cleaned tubes; can contain clot activator or K EDTA

Question 20

tan tube

Answer 20

used for determining lead levels

Question 21

yellow tube

Answer 21

acid citrate dextrose (ACD); used for cellular studies; binds calcium to stop clotting

Question 22

light blue/black tube

Answer 22

contains sodium citrate and gel gradient; separates different cells; used for molecular testing

Question 23

red/green tube

Answer 23

contains sodium citrate, gel gradient, and sodium heparin; separates different cells; used for molecular testing

Question 24

orange tube

Answer 24

contains a rapid clot activator for STAT testing

Question 25

Red/Gray and Gold tubes

Answer 25

clot activator and gel separator

Question 26

red tube

Answer 26

clot activator

Question 27

order of draw

Answer 27

start, sterile speciments, light blue, red/gold/royal blue(serum), green, lavender/pink/white/royal blue (K EDTA), gray, yellow, finish

Question 28

winged blood collection uses

Answer 28

hand veins. infants, or small adult veins

Question 29

tourniquets

Answer 29

tied around patient's arm just above venipuncture; impedes venous blood flow but not arterial blood flow; makes veins easier to locate

Question 30

puncture site protection

Answer 30

usually 70% alcohol, for additional antiseptics iodine or chlorohexidine gluconate can be used

Question 31

max time a tourniquet can be on

Answer 31

1 minute