Venipuncture

Question 1

Out of the following tubes, green, light blue,lavender, or red are routinely used for hematology testing?

Answer 1

Lavender

Question 2

Which type of tube should be used to collect blood specimens during a blood glucose tolerance test?

Answer 2

Grey

Question 3

No anticoagulants are found in which of the following tubes?

Answer 3

Red

Question 4

What anticoagulant prevents platelets from clumping and preserves the appearance of blood for microscopic prep?

Answer 4

EDTA

Question 5

The slant at the open end of the needle used for venipuncture is called?

Answer 5

The bevel

Question 6

What needle size is most commonly used for venipuncture?

Answer 6

20

Question 7

What about the most commonly used needle at a blood bank?

Answer 7

16

Question 8

The needle size most commonly used in infants and elederly?

Answer 8

23

Question 9

Tourniquet should be tied on arm no longer than?

Answer 9

1 minute

Question 10

Without a clot activator blood clots within what time frame?

Answer 10

15 to 16 minutes

Question 11

You are required to collect a blood sample for a cbc, which tube would you collect?

Answer 11

Lavender

Question 12

The laboratory requisition indicated you are to collect venous blood specimen for testing serum chemistry testing and coagulation studies, what is the proper order of collection for these tubes?

Answer 12

Light blue, red, lavender

Question 13

So a syringe is preferred over a vacutainer collection when?

Answer 13

Fragile veins

Question 14

Leaving a tourniquet on an arm over the recommended time can cause?

Answer 14

Hemoconcentration

Question 15

Before a routine venipuncture or capillary puncture what do you clean the site with?

Answer 15

Isopropyl alcohol

Question 16

In a routine venipuncture what angle should the needle enter the arm?

Answer 16

15 degree

Question 17

Winged infusion set is also known as?

Answer 17

Butterfly needle

Question 18

Why should a tourniquet not be tied too tightly?

Answer 18

Impeades arterial blood flow

Question 19

A needlestick is most likely to occur if the phlebotomist does what?

Answer 19

Attempts to recap a needle

Question 20

A hematoma can be caused by?

Answer 20

All the the above

Question 21

Blood obtained via capillary puncture can be obtained in?

Answer 21

All of the above

Question 22

The device used for a dermal puncture is?

Answer 22

Lancet

Question 23

Most common site for adults are ?

Answer 23

antecubital

Question 24

The proper venipuncture tube for collection of a serum specimen(select all that apply)?

Answer 24

Red and grey

Question 25

What is the correct method for performing a capillary puncture?

Answer 25

Wipe away the first drop of blood then collect the sample

Question 26

Which is the proper technique for performing a venipuncture?

Answer 26

Bevel is up,needle goes in at a 15 degree angle

Question 27

The liquid portion of whole blood that contains clotting factors?

Answer 27

Plasma

Question 28

Which of the following cleansing agents may be used at the venipuncture site to remove infection causing bacteria?

Answer 28

All of the above

Question 29

If samples for more than one tube must be drawn, which order listed below follows the clisi standards?

Answer 29

Yellow, red, green

Question 30

What is the major cause of specimen rejection?

Answer 30

hemolysis

Question 31

Which of the following collection containers are used to treat neonates for certain metabolic disorders?

Answer 31

Guthrie cards

Question 32

In adults and children which finger is most likely used?

Answer 32

Ring finger

Question 33

The vacutainer tube with a marble gray top uses particles to enhance clotting,in a thyrotropic gel to assist in serum and blood cells.

Answer 33

True

Question 34

The smaller gauge number the larger the lumen of the needle.

Answer 34

True

Question 35

The smaller gauge of the venipuncture needle the less likely it is of hemolysis blood cells will occur.

Answer 35

True

Question 36

If your patient faints while having blood draw they must remain in the facility for 15 mins and should not drive for at least 30 mins.

Answer 36

True

Question 37

If you're drawing blood on a elderly patient with a history of collapsed veins you should collect with a syringe.

Answer 37

True

Question 38

If a patient complains of tingling and numbness during a venipuncture you should continue to draw.

Answer 38

False

Question 39

If blood is flowing into the vacutainer to slowly you should withdraw the needle slightly.

Answer 39

True

Question 40

All vacutainer tubes should be inverted 3 to 5 times to mix the blood sample additive.

Answer 40

False