Section 4: Fundamentals of IV Therapy CNJNE IV
Certification Exam Questions and Answers with
Rationales 2025
1. What is the primary purpose of IV therapy?
A. To deliver fluids, medications, and nutrients directly into the
bloodstream
B. To remove toxins through the kidneys
C. To increase bowel function
D. To prevent infections
Rationale: IV therapy ensures rapid systemic effects and precise control
over drug/fluid delivery.
2. Which of the following is a potential complication of IV therapy?
A. Dehydration
B. Phlebitis
C. Constipation
D. Hypertension
Rationale: Phlebitis is inflammation of the vein, often due to mechanical
or chemical irritation.
3. Which solution is isotonic?
A. 0.45% Normal Saline
B. D5W
, C. 0.9% Normal Saline
D. 3% Saline
Rationale: 0.9% NS is isotonic and maintains fluid balance without shifting
cells.
4. Which condition requires hypertonic IV solutions?
A. Dehydration
B. Cerebral edema
C. Hypoglycemia
D. Metabolic acidosis
Rationale: Hypertonic solutions pull fluid from tissues, reducing cerebral
swelling.
5. Before starting an IV, what is the nurse's first priority?
A. Select the needle gauge
B. Verify the physician’s order
C. Choose a vein
D. Apply gloves
Rationale: Legal and clinical protocols require order verification first.
6. The drop factor of a microdrip set is:
A. 10 gtt/mL
B. 60 gtt/mL
C. 15 gtt/mL
D. 20 gtt/mL
Rationale: Microdrip sets deliver 60 drops per mL.
, 7. What is the best angle to insert an IV catheter?
A. 45–60 degrees
B. 10–30 degrees
C. 70–90 degrees
D. Flat to the skin
Rationale: A shallow angle prevents puncturing through the vein.
8. Which of the following should be documented after IV insertion?
A. Site, gauge, number of attempts, and patient tolerance
B. Brand of IV catheter only
C. Type of gloves used
D. Time the fluid was hung only
Rationale: Full documentation includes procedural and patient-related
data.
9. IV infiltration is characterized by:
A. Swelling, coolness, and pallor at the site
B. Redness and warmth
C. Absence of a pulse
D. Fever
Rationale: Infiltration causes fluid leakage into surrounding tissue.
10.What is the best action for suspected infiltration?
A. Apply heat
B. Flush the IV
C. Stop the infusion and remove the catheter
Certification Exam Questions and Answers with
Rationales 2025
1. What is the primary purpose of IV therapy?
A. To deliver fluids, medications, and nutrients directly into the
bloodstream
B. To remove toxins through the kidneys
C. To increase bowel function
D. To prevent infections
Rationale: IV therapy ensures rapid systemic effects and precise control
over drug/fluid delivery.
2. Which of the following is a potential complication of IV therapy?
A. Dehydration
B. Phlebitis
C. Constipation
D. Hypertension
Rationale: Phlebitis is inflammation of the vein, often due to mechanical
or chemical irritation.
3. Which solution is isotonic?
A. 0.45% Normal Saline
B. D5W
, C. 0.9% Normal Saline
D. 3% Saline
Rationale: 0.9% NS is isotonic and maintains fluid balance without shifting
cells.
4. Which condition requires hypertonic IV solutions?
A. Dehydration
B. Cerebral edema
C. Hypoglycemia
D. Metabolic acidosis
Rationale: Hypertonic solutions pull fluid from tissues, reducing cerebral
swelling.
5. Before starting an IV, what is the nurse's first priority?
A. Select the needle gauge
B. Verify the physician’s order
C. Choose a vein
D. Apply gloves
Rationale: Legal and clinical protocols require order verification first.
6. The drop factor of a microdrip set is:
A. 10 gtt/mL
B. 60 gtt/mL
C. 15 gtt/mL
D. 20 gtt/mL
Rationale: Microdrip sets deliver 60 drops per mL.
, 7. What is the best angle to insert an IV catheter?
A. 45–60 degrees
B. 10–30 degrees
C. 70–90 degrees
D. Flat to the skin
Rationale: A shallow angle prevents puncturing through the vein.
8. Which of the following should be documented after IV insertion?
A. Site, gauge, number of attempts, and patient tolerance
B. Brand of IV catheter only
C. Type of gloves used
D. Time the fluid was hung only
Rationale: Full documentation includes procedural and patient-related
data.
9. IV infiltration is characterized by:
A. Swelling, coolness, and pallor at the site
B. Redness and warmth
C. Absence of a pulse
D. Fever
Rationale: Infiltration causes fluid leakage into surrounding tissue.
10.What is the best action for suspected infiltration?
A. Apply heat
B. Flush the IV
C. Stop the infusion and remove the catheter
