Deck 8: Venipuncture Equipment

Question 1

In an evacuated tube, blood flow into the tube depends on:

A) the vacuum in the tube.
B) gravity.
C) blood pressure.
D) air pressure.

Answer 1

A

Question 2

The tube of choice for trace metal analysis is:

A) light blue.
B) red.
C) gold.
D) royal blue.

Answer 2

D

Question 3

Blood cultures may be collected in:

A) yellow stopper tubes containing SPS.
B) yellow stopper tubes containing ACD.
C) yellow/gray stopper tubes containing thrombin.
D) plain, sterile red stopper tubes.

Answer 3

A

Question 4

Packages of evacuated tubes manufactured at the same time are called a:

A) batch.
B) set.
C) lot.
D) bundle.

Question 5

The most economical and safest method for performing routine venipuncture is the use of:

A) butterflies.
B) plastic syringes.
C) glass syringes.
D) evacuated tubes.

Question 6

The plastic tubing on a winged infusion set may be attached to all of the following except a(n):

A) syringe.
B) large red stopper tube.
C) intravenous line setup.
D) evacuated tube adapter.

Question 7

The primary antiseptic for routine venipuncture is:

A) iodine.
B) chlorhexidine.
C) isopropyl alcohol.
D) Betadine.

Question 8

A properly tied tourniquet:

A) permits arterial flow and blocks venous flow.
B) blocks arterial and venous flow.
C) prevents backflow.
D) permits venous flow and blocks arterial flow.

Question 9

The ratio of blood to anticoagulant in a light blue stopper tube is:

A) 2:1
B) 5:1
C) 9:1
D) 10:1

Question 10

All of the following tubes contain a separation gel except:

A) green.
B) light green.
C) white.
D) red/gray.

Question 11

Which of the following tubes must always be completely filled?

A) Gray
B) Light blue
C) Red
D) Pink

Question 12

Serum separator tubes should not be used for:

A) blood bank tests.
B) therapeutic drug tests.
C) serology tests.
D) all of the above

Question 13

The purpose of thixotropic gel in an evacuated tube is to:

A) prevent clot formation.
B) prevent cellular contamination of serum.
C) increase clot formation.
D) facilitate blood bank testing procedures.

Question 14

The anticoagulant present in a light-blue stopper tube is:

A) Ethylenediaminetetraacetic acid (EDTA).
B) sodium citrate.
C) heparin.
D) potassium oxalate.

Question 15

Phlebotomy equipment can be organized in all of the following except:

A) trays.
B) mobile workstations.
C) infant cradle pads.
D) drawing stations.

Question 16

The purpose of sodium fluoride in gray stopper tubes is to:

A) prevent hemolysis.
B) prevent clotting.
C) preserve glucose.
D) maintain cellular morphology.

Question 17

Tubes containing soybean trypsin inhibitor and thrombin are used to collect specimens for:

A) glucose.
B) fibrin degradation products.
C) blood alcohol levels.
D) paternity tests.

Question 18

The color coding of evacuated tubes provides information about all of the following except the:

A) volume of specimen collected.
B) type of specimen collected.
C) need to invert the tube.
D) presence of an anticoagulant.

Question 19

Yellow stopper tubes are used for all of the following except:

A) blood cultures.
B) lead testing.
C) human leukocyte antigen (HLA) typing.
D) paternity testing.

Question 20

All of the following can decrease the possibility of developing a latex allergy except:

A) wearing powdered gloves.
B) wearing nonpowdered gloves.
C) washing the hands as soon as gloves are removed.
D) wearing cotton gloves.

Question 21

When collecting coagulation tests from a patient with polycythemia the:

A) tube should not be inverted.
B) amount of anticoagulant is increased.
C) tube should contain thrombin.
D) amount of anticoagulant is decreased.

Question 22

The recommended order of draw for a complete blood count (CBC), prothrombin time, and cholesterol is:

A) lavender, light blue, and plastic red.
B) light blue, lavender, and glass red.
C) plastic red, lavender, and light blue.
D) glass red, light blue, and lavender.

Question 23

Which of the following tubes contains an anticoagulant that inhibits thrombin?

A) Lavender
B) Light blue
C) White
D) Light green

Question 24

To prevent leakage of blood when tubes are changed, evacuated tube needles:

A) have a blunting device.
B) use a rubber sheathe.
C) are only used for single tube collections.
D) are used with safety adapters.

Question 25

Most anticoagulants in blood collection tubes prevent clotting by:

A) binding calcium.
B) acting as an antithrombin agent.
C) binding fibrinogen.
D) releasing heparin.

Question 26

Lavender stopper tubes can be used for all of the following except:

A) coagulation tests.
B) platelet counts.
C) differential counts.
D) hematocrits.

Question 27

The stopper-puncturing needle should be completely pushed into the evacuated tube:

A) after the vein is entered.
B) while the equipment is being assembled.
C) just before the vein is entered.
D) prior to anchoring the vein.

Question 28

Electrolytes can be performed on serum or plasma from all of the following tubes except:

A) light green.
B) gray.
C) plastic red.
D) gold.

Question 29

The tube that will best prevent falsely increased potassium test results is:

A) light green.
B) green.
C) red.
D) gold.

Question 30

Which of the following is the most acceptable order of tube draw?

A) Yellow, glass red, and light blue
B) Lavender, plastic red, and yellow
C) Plastic red, light blue, and lavender
D) Yellow, green, and light blue

Question 31

The difference between glass and plastic red stopper tubes is that the:

A) glass tubes cannot be used for serology tests.
B) glass tubes contain heparin.
C) plastic tubes contain a clot activator.
D) plastic tubes are recommended for blood bank tests.

Question 32

Failing to adequately invert a lavender stopper tube after collection will:

A) cause hemolysis.
B) falsely elevate calcium results.
C) destroy coagulation factors.
D) produce a clotted specimen.

Question 33

To obtain a serum sample for a stat test on a patient receiving anticoagulant therapy, the recommended tube is:

A) light green.
B) red/gray or gold.
C) yellow/gray or orange.
D) red.

Question 34

The presence of a clot is acceptable in:

A) red stopper tubes.
B) lavender stopper tubes.
C) green stopper tubes.
D) light blue stopper tubes.

Question 35

A phlebotomist who used a light blue stopper tube after its expiration date may have the specimen rejected because:

A) the specimen is clotted.
B) the differential does not stain properly.
C) the tube is not completely filled.
D) both A and C

Question 36

An example of an antiglycolytic agent is:

A) potassium oxalate.
B) ethylenediaminetetraacetic acid.
C) sodium fluoride.
D) ammonium heparin.

Question 37

Which of the following needles has the largest diameter?

A) 16 gauge
B) 18 gauge
C) 20 gauge
D) 22 gauge

Question 38

The advantages of vacuum collection tubes over a syringe are: 1. no transfer of blood is necessary
2) it is a closed system
3) the holder can be reused
4) you have more control over the vacuum

A) 1 and 2
B) 2 and 4
C) 1, 2, and 3
D) 1, 2, 3, and 4

Question 39

Drawing a lavender stopper tube before an SST tube can cause a falsely:

A) increased calcium value.
B) decreased glucose value.
C) decreased calcium value.
D) increased glucose value.

Question 40

Which of the following tubes contains an anticoagulant that does not bind calcium?

A) Light blue
B) Green
C) Gray
D) Lavender

Question 41

The part of a syringe that is withdrawn after the vein is entered is the:

A) barrel.
B) hub.
C) shield.
D) plunger.

Question 42

Needle protection devices are not necessary when using a syringe.

Question 43

Plasma separator tubes (PST) contain the anticoagulant ethylenediaminetetraacetic acid (EDTA).

Question 44

Collecting a large evacuated tube using 23-gauge needle:

A) is recommended for geriatric patients.
B) is required for certain automated tests.
C) may cause a hemolyzed sample.
D) may cause a loss of vacuum in the tube.

Question 45

Blood collected in a syringe is transferred to evacuated tubes.

Question 46

Tubes containing powdered anticoagulant do not require mixing.

Question 47

The use of mobile phlebotomy workstations with swivel caster wheels offer all the following advantages over the traditional phlebotomy tray except:

A) the tray will not fall from the patient's bed.
B) the phlebotomist must use the elevator to travel between floors in a hospital.
C) ample space is available for supplies, sharps containers and paperwork.
D) space is easily available for wireless order entry devices.

Question 48

Many newer instruments in the laboratory are able to withdraw patient sample directly through the stopper of an unopened blood collection tube. The instrument identifies the correct tube by means of:

A) the color of the stopper.
B) the diameter of the tube.
C) a bar-coded label on the tube.
D) the patient's last name on the tube.

Question 49

A phlebotomist's equipment should include a pen.

Question 50

The needle holder that is part of the evacuated tube collection system is:

A) disposed of in the general trash after removing the collection needle.
B) disposed of as a unit with the collection needle into a red bag.
C) disposed of as a unit with the collection needle into a sharps container.
D) made of a grade of plastic that does not require disposal in a sharps container.

Question 51

The plastic tubing on a winged infusion set can be attached to all of the following except:

A) evacuated tube adapter.
B) syringe.
C) SST tube.
D) intravenous set.

Question 52

A butterfly would be primarily used to collect blood from the:

A) heel.
B) antecubital vein.
C) finger.
D) hand.

Question 53

A blood-alcohol test should not be collected in a gray stopper tube.

Question 54

If a needle has not been used it can be recapped.

Question 55

A blood pressure cuff can be used as a tourniquet.

Question 56

The needle adapter can be used as a needle safety device.

Question 57

Forcing blood from a syringe into an evacuated tube:

A) prevents the blood from clotting.
B) can only be done when using a small syringe.
C) may hemolyze the specimen.
D) is required when using a transfer device.

Question 58

Some evacuated tubes are designed not to completely fill.

Question 59

The most important reason that the phlebotomist's tray should not be carried into the room of a patient in isolation is:

A) surfaces on the tray may act as a reservoir for infectious agents.
B) there is often no spare space available in an isolation room.
C) the tray should be left in the hallway so others may find the phlebotomist when needed.
D) supplies may be stolen from the tray.

Question 60

A lavender stopper tube maintains cellular integrity better than other tubes.

Question 61

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Sedimentation rates

Question 62

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Contains thrombin

Question 63

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Contains thixotropic gel and a clot activator

Question 64

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Rubber stoppers are specially formulated

Question 65

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Used for lead testing

Question 66

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Designated for blood bank specimens

Question 67

When using a butterfly, a light blue stopper tube should be collected first.
Matching

Question 68

Match the following evacuated tube stopper colors with the tube description.
a.Black
e.Tan
b.Pink
f.White
c.Red/gray or gold
g.Yellow/gray or orange
d.Royal blue
Used for molecular diagnostics