1. What is the most commonly used vein for IV insertion in the arm?

Question

A. Femoral vein
B. Cephalic vein
C. Subclavian vein
D. Saphenous vein
2. What layer of the vein is most critical for successful IV catheter placement?
A. Tunica media
B. Tunica adventitia
C. Tunica intima
D. Endothelium
3. Which veins are located in the antecubital fossa?
A. Femoral and cephalic veins
B. Cephalic, basilic, and median cubital veins
C. Subclavian and brachial veins
D. Popliteal and great saphenous veins

4. What is the function of the venous valves?
A. Prevent blood clots
B. Regulate blood flow to arteries
C. Prevent backflow of blood
D. Maintain arterial pressure

5. Why are arteries not used for routine IV therapy?
A. They are difficult to locate.
B. They carry deoxygenated blood.
C. They have higher pressure and thicker walls.
D. They are located too deep.
IV Insertion Techniques
6. At what angle should you insert an IV catheter into a superficial vein?
A. 5–10 degrees
B. 15–30 degrees
C. 45–60 degrees
D. 90 degrees
7. What is the purpose of a tourniquet during IV insertion?
A. To increase arterial blood flow
B. To stop bleeding
C. To occlude venous blood flow and distend the vein
D. To reduce swelling
8. How can you differentiate between an artery and a vein during palpation?
A. Veins have a pulse.
B. Arteries are compressible.
C. Arteries have a pulse, while veins do not.
D. Veins are deeper than arteries.

9. When should you advance the catheter and retract the needle?
A. When you see a flashback of blood in the catheter hub
B. After fully inserting the needle
C. When the patient experiences pain
D. When you palpate the vein

10. What is the significance of seeing a flashback of blood during IV insertion?
A. It indicates the catheter is in an artery.
B. It confirms the catheter is in the vein.
C. It shows the tourniquet is too tight.
D. It indicates venous valve malfunction.

Answer 1

Here are the answers to your questions:

1. What is the most commonly used vein for IV insertion in the arm?

   • B. Cephalic vein

2. What layer of the vein is most critical for successful IV catheter placement?

   • C. Tunica intima

3. Which veins are located in the antecubital fossa?

   • B. Cephalic, basilic, and median cubital veins

4. What is the function of the venous valves?

   • C. Prevent backflow of blood

5. Why are arteries not used for routine IV therapy?

   • C. They have higher pressure and thicker walls.

IV Insertion Techniques:

6. At what angle should you insert an IV catheter into a superficial vein?

   • B. 15–30 degrees

7. What is the purpose of a tourniquet during IV insertion?

   • C. To occlude venous blood flow and distend the vein

8. How can you differentiate between an artery and a vein during palpation?

   • C. Arteries have a pulse, while veins do not.

9. When should you advance the catheter and retract the needle?

   • A. When you see a flashback of blood in the catheter hub

10. What is the significance of seeing a flashback of blood during IV insertion?

    • B. It confirms the catheter is in the vein.

If you have any more questions or need further clarification, feel free to ask!

Answer 2

Can you give rationales?