ESTUDYR
NUR 172 QUIZ 3 FINAL EXAM LATEST ACTUAL EXAM 70 QUESTIONS
ND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |AREADY GRADED A+
1. Metacarpal veins are located where?
A. Forearm
B. Upper arm
C. Hands
D. Wrist
Correct Answer: C
Rationale: Metacarpal veins are superficial veins on the dorsum of the hand and are commonly
used for IV access.
2. The cephalic vein is best described as:
A. A vein on the ulnar side of the arm
B. A deep central vein
C. The main vein on the thumb side of the hand
D. A vein in the antecubital fossa
Correct Answer: C
Rationale: The cephalic vein runs along the radial (thumb) side and is often used for IV
insertion.
3. What type of gloves are worn when inserting a peripheral IV?
A. Sterile gloves
B. Surgical gloves
C. Clean gloves
D. No gloves
Correct Answer: C
Rationale: Peripheral IV insertion requires clean (non-sterile) gloves per INS standards.
,ESTUDYR
4. How should the nurse determine the catheter gauge to use?
A. Based on patient age
B. Based on vein location
C. Based on the type of solution to be administered
D. Based on nurse preference
Correct Answer: C
Rationale: Larger gauges are required for blood or rapid infusions; smaller gauges are used for
routine fluids.
5. What should be avoided when starting an IV on a patient taking anticoagulants or with
fragile veins?
A. Alcohol prep
B. Tourniquet
C. Saline flush
D. Transparent dressing
Correct Answer: B
Rationale: Tourniquets increase venous pressure and risk vein rupture and hematoma.
6. What may be used instead of a standard tourniquet?
A. Elastic bandage
B. Gauze wrap
C. Blood pressure cuff
D. IV tubing
Correct Answer: C
Rationale: A BP cuff inflated lightly provides controlled venous distention.
7. Per INS standards, the vascular access device selected should be:
A. The largest available
B. The most durable
C. The smallest outer diameter with the fewest lumens needed
D. A central line whenever possible
, ESTUDYR
Correct Answer: C
Rationale: Using the least invasive device reduces complications and preserves veins.
8. What is the most commonly used IV gauge for adults?
A. 16 gauge
B. 18 gauge
C. 20 gauge
D. 22 gauge
Correct Answer: C
Rationale: A 20-gauge catheter balances adequate flow with vein preservation.
9. Can blood be administered through a 20-gauge IV catheter?
A. No
B. Only in emergencies
C. Only with pressure tubing
D. Yes
Correct Answer: D
Rationale: A 20-gauge catheter is acceptable for blood transfusions.
10. Universal gauge coding means:
A. Larger number = larger catheter
B. Color determines length
C. Smaller number = larger catheter diameter
D. Gauge does not affect flow
Correct Answer: C
Rationale: IV gauges are inversely related to diameter.
11. A 16-gauge catheter is _____ in diameter than an 18-gauge.
A. Smaller
B. Equal
C. Larger
D. Narrower
NUR 172 QUIZ 3 FINAL EXAM LATEST ACTUAL EXAM 70 QUESTIONS
ND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |AREADY GRADED A+
1. Metacarpal veins are located where?
A. Forearm
B. Upper arm
C. Hands
D. Wrist
Correct Answer: C
Rationale: Metacarpal veins are superficial veins on the dorsum of the hand and are commonly
used for IV access.
2. The cephalic vein is best described as:
A. A vein on the ulnar side of the arm
B. A deep central vein
C. The main vein on the thumb side of the hand
D. A vein in the antecubital fossa
Correct Answer: C
Rationale: The cephalic vein runs along the radial (thumb) side and is often used for IV
insertion.
3. What type of gloves are worn when inserting a peripheral IV?
A. Sterile gloves
B. Surgical gloves
C. Clean gloves
D. No gloves
Correct Answer: C
Rationale: Peripheral IV insertion requires clean (non-sterile) gloves per INS standards.
,ESTUDYR
4. How should the nurse determine the catheter gauge to use?
A. Based on patient age
B. Based on vein location
C. Based on the type of solution to be administered
D. Based on nurse preference
Correct Answer: C
Rationale: Larger gauges are required for blood or rapid infusions; smaller gauges are used for
routine fluids.
5. What should be avoided when starting an IV on a patient taking anticoagulants or with
fragile veins?
A. Alcohol prep
B. Tourniquet
C. Saline flush
D. Transparent dressing
Correct Answer: B
Rationale: Tourniquets increase venous pressure and risk vein rupture and hematoma.
6. What may be used instead of a standard tourniquet?
A. Elastic bandage
B. Gauze wrap
C. Blood pressure cuff
D. IV tubing
Correct Answer: C
Rationale: A BP cuff inflated lightly provides controlled venous distention.
7. Per INS standards, the vascular access device selected should be:
A. The largest available
B. The most durable
C. The smallest outer diameter with the fewest lumens needed
D. A central line whenever possible
, ESTUDYR
Correct Answer: C
Rationale: Using the least invasive device reduces complications and preserves veins.
8. What is the most commonly used IV gauge for adults?
A. 16 gauge
B. 18 gauge
C. 20 gauge
D. 22 gauge
Correct Answer: C
Rationale: A 20-gauge catheter balances adequate flow with vein preservation.
9. Can blood be administered through a 20-gauge IV catheter?
A. No
B. Only in emergencies
C. Only with pressure tubing
D. Yes
Correct Answer: D
Rationale: A 20-gauge catheter is acceptable for blood transfusions.
10. Universal gauge coding means:
A. Larger number = larger catheter
B. Color determines length
C. Smaller number = larger catheter diameter
D. Gauge does not affect flow
Correct Answer: C
Rationale: IV gauges are inversely related to diameter.
11. A 16-gauge catheter is _____ in diameter than an 18-gauge.
A. Smaller
B. Equal
C. Larger
D. Narrower
