Deck 8: Blood Collection From Vascular Access Devices

Question 1

Why is it necessary to flush peripheral IVs and central venous catheters (CVCs)?

A) Maintain patency of the catheter
B) Prevent mixing of medications
C) Prevent hemolysis of sample
D) Both A and B

Answer 1

D

Question 2

Peripheral venous catheters are placed into the:

A) superior vena cava.
B) inferior vena cava.
C) peripheral vein.
D) radial artery.

Answer 2

C

Question 3

When a central venous catheter (CVC) is present:

A) blood is drawn from the line using a 30-mL syringe.
B) laboratory samples should not be collected from the catheter.
C) blood is drawn and discarded before the sample is collected.
D) an evacuated tube is attached to the line for sample collection.

Answer 3

C

Question 4

When blood is collected from an IV line:

A) this information should be noted on the requisition form.
B) the physician should be notified.
C) the IV fluid should not be restarted.
D) a winged blood collection set should be used.

Question 5

The central venous catheter (CVC) that is surgically placed by a physician for long-term drug therapies is:

A) Groshong.
B) Hickman.
C) implanted port.
D) peripherally inserted central catheter (PICC).

Question 6

Blood drawn for a blood culture from a central venous catheters (CVC):

A) must be collected first.
B) detects infection of the catheter tip.
C) is compared with results drawn from a peripheral vein.
D) All of the above

Question 7

Central venous catheters (CVCs) are inserted into the:

A) superior vena cava.
B) basilic vein.
C) radial artery.
D) brachial artery.

Question 8

20 mL of blood must be discarded or used for other tests before drawing blood for:

A) blood cultures.
B) coagulation tests.
C) chemistry tests.
D) hematology tests.

Question 9

Sterile gloves are required when:

A) collecting blood from a central venous catheter (CVC).
B) inserting a peripherally inserted central catheter (PICC).
C) inserting a peripheral IV.
D) Both B and C

Question 10

When collecting a blood culture,complete blood count (CBC),and prothrombin time (PT) from a central venous catheter (CVC),how many syringes must be used?

A) One
B) Two
C) Three
D) Five

Question 11

Which central venous catheter (CVC) is inserted through a peripheral vein into the superior vena cava by specially trained nurses?

A) Peripherally inserted central catheter
B) Implanted port
C) Hickman catheter
D) Groshong catheter

Question 12

When drawing blood from a central venous catheter (CVC):

A) a syringe larger than 20 mL must be used.
B) heparin is first injected into the catheter.
C) the first 5 mL of blood is always discarded.
D) a double- or triple-lumen catheter must be present.

Question 13

Peripheral access devices include peripheral IV lines and midline peripheral catheters.

Question 14

When inserting a peripheral IV catheter,the line should be flushed after the blood is collected.

Question 15

Blood sample collection from a peripheral vascular access device:

A) is only performed at the time of insertion.
B) is performed prior to administration of medications.
C) uses syringes and a transfer device.
D) All of the above

Question 16

Central venous catheters (CVCs) are threaded into the superior vena cava.

Question 17

When collecting blood for laboratory tests from a central venous catheter (CVC) that is infusing total parenteral nutrition (TPN) or heparin,it must be flushed with:

A) 5 mL of saline.
B) 10 mL of saline.
C) 15 mL of saline.
D) 20 mL of saline.

Question 18

A Hickman is a tunneled catheter.

Question 19

The most common all-purpose peripheral IV catheter is:

A) 14-gauge.
B) 16-gauge.
C) 20-gauge.
D) 24-gauge.

Question 20

Which of the following is classified as a tunneled catheter?

A) Broviac
B) Hickman
C) Groshong
D) All of the above

Question 21

Blood can be routinely collected from a midline peripheral catheter.

Question 22

Implanted ports are used only for administration of chemotherapy and cannot be used for blood collection.

Question 23

Blood for laboratory testing is only drawn from peripheral access devices at the time of insertion.

Question 24

Heparin is the preferred solution for flushing catheters.

Question 25

Blood cannot be drawn from a peripheral inserted central catheters (PICC) line that is infusing total parental nutrition (TPN).

Question 26

Flushing peripheral IVs and central venous catheters (CVCs) is performed to maintain patency of the catheter.

Question 27

A noncoring needle is used to access an implanted port.