Success in the CMSRN – 25 comes from consistent preparation and smart practice. This test is designed to provide both. By working through realistic questions, you’ll gain insight into how the exam is structured and what areas require more focus. Don’t rush through the questions — take time to understand each concept and learn from your mistakes. Over time, this process will help you build both knowledge and confidence.
Updated for 2026: This guide provides a structured approach to help you prepare effectively, understand key concepts, and practice real exam-level questions.
How to Use This Practice Test
- Start by reviewing key concepts before attempting questions
- Take the test in a timed environment
- Analyze your mistakes and revisit weak areas
Why This Practice Test Matters
This practice test is designed to simulate the real exam environment and help you identify knowledge gaps, improve accuracy, and build confidence.
1. A patient with heart failure presents with shortness of breath. What is the priority intervention?
A. Administer IV fluids
B. Elevate legs
C. Administer oxygen
D. Encourage ambulation
Answer: C. Administer oxygen
Rationale:
Shortness of breath in heart failure indicates impaired oxygenation due to fluid buildup in the lungs. The priority is to improve oxygen delivery by administering supplemental oxygen. While elevating legs may help circulation in some cases, it can worsen pulmonary congestion. IV fluids could increase fluid overload. Addressing airway and breathing always comes first in clinical priority, making oxygen administration the most appropriate initial intervention.
2. Which lab value is most important for a patient on warfarin?
A. Hemoglobin
B. INR
C. Platelets
D. WBC
Answer: B
Rationale:
The International Normalized Ratio (INR) measures blood clotting and is essential for monitoring warfarin therapy. Maintaining INR within the therapeutic range reduces the risk of bleeding or clot formation. Regular monitoring ensures safe and effective anticoagulation.
3. What is the priority for a patient with hypoglycemia?
A. Insulin
B. Glucose administration
C. Exercise
D. Fluids
Answer: B
Rationale:
Hypoglycemia requires immediate glucose to restore blood sugar levels and prevent complications such as confusion or unconsciousness.
4. A patient has chest pain. What is the first action?
A. ECG
B. Pain medication
C. Oxygen
D. Blood test
Answer: C
Rationale:
Oxygen helps improve tissue perfusion and is prioritized in suspected cardiac events.
5. Which sign indicates infection?
A. Low temperature
B. Fever
C. Low pulse
D. Low BP
Answer: B
Rationale:
Fever is a common sign of infection as the body responds to pathogens.
6. What is priority for stroke patient?
A. Feeding
B. Airway
C. Exercise
D. Sleep
Answer: B
Rationale:
Airway management is critical to prevent complications.
7. What does elevated potassium cause?
A. Weakness
B. Arrhythmias
C. Fever
D. Pain
Answer: B
Rationale:
Hyperkalemia affects heart rhythm and can be life-threatening.
8. What is priority for post-op patient?
A. Diet
B. Pain
C. Airway
D. Sleep
Answer: C
Rationale:
Airway and breathing are always the top priority.
9. What is normal oxygen saturation?
A. 70%
B. 80%
C. 95–100%
D. 60%
Answer: C
Rationale:
Normal oxygen saturation ensures adequate oxygenation.
10. What is sepsis?
A. Infection response
B. Injury
C. Pain
D. Fever
Answer: A
Rationale:
Sepsis is a systemic response to infection.
11. What is priority for dehydration?
A. Fluids
B. Sleep
C. Exercise
D. Food
Answer: A
Rationale:
Fluids restore hydration and prevent complications.
12. What is priority for hypertension?
A. Diet
B. BP control
C. Sleep
D. Exercise
Answer: B
Rationale:
Controlling BP prevents complications like stroke.
13. What is anemia symptom?
A. Fatigue
B. Fever
C. Pain
D. Rash
Answer: A
Rationale:
Fatigue occurs due to low oxygen-carrying capacity.
14. What is priority for COPD?
A. Oxygen
B. Exercise
C. Diet
D. Sleep
Answer: A
Rationale:
Oxygen improves breathing and prevents hypoxia.
15. What is DVT risk?
A. Movement
B. Immobility
C. Sleep
D. Diet
Answer: B
Rationale:
Immobility increases clot formation risk.
16. What is priority for bleeding?
A. Stop bleeding
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Stopping bleeding prevents shock and complications.
17. What is infection prevention?
A. Hand hygiene
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Hand hygiene is the most effective prevention method.
18. What is priority for pain?
A. Ignore
B. Manage pain
C. Sleep
D. Diet
Answer: B
Rationale:
Pain management improves recovery and comfort.
19. What is priority for fever?
A. Reduce temperature
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Reducing fever prevents complications.
20. What is shock?
A. Infection
B. Low perfusion
C. Pain
D. Fever
Answer: B
Rationale:
Shock is inadequate blood flow to tissues.
21. What is priority for burns?
A. Fluids
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Fluid resuscitation prevents shock.
22. What is priority for asthma?
A. Oxygen
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Oxygen improves airway function.
23. What is priority for fracture?
A. Immobilize
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Immobilization prevents further injury.
24. What is priority for infection control?
A. Isolation
B. Sleep
C. Diet
D. Exercise
Answer: A
Rationale:
Isolation prevents spread of infection.
25. What is nurse’s main role?
A. Diagnose
B. Provide care
C. Prescribe
D. Ignore
Answer: B
Rationale:
The nurse’s primary role is to provide patient care, ensure safety, and support recovery. Nurses assess patients, implement care plans, monitor progress, and educate patients and families. They collaborate with healthcare teams to deliver effective treatment. Patient-centered care is the core of nursing practice, making this role essential in healthcare settings.
Frequently Asked Questions
Does this CMSRN – 25 test reflect real exam difficulty?
Yes, this practice test is designed to reflect real exam patterns, structure, and difficulty level to help you prepare effectively.
What is the best way to use this CMSRN – 25 test for preparation?
Take the test in a timed setting, review your answers carefully, and focus on improving weak areas after each attempt.
Is it helpful to repeat this CMSRN – 25 practice test?
Yes, repeating the test helps reinforce concepts, improve accuracy, and build confidence for the actual exam.
Is this CMSRN – 25 suitable for beginners?
This practice test is suitable for both beginners and retakers who want to improve their understanding and performance.