CMSRN Practice Test

Question 1: A nurse is caring for a patient admitted with worsening heart failure who reports increasing shortness of breath while lying flat and has bilateral lower-extremity edema. Which nursing action should take the highest priority?

A. Encourage the patient to increase fluid intake.
B. Assess the patient’s respiratory status and oxygen saturation immediately.
C. Provide education about a low-sodium diet.
D. Assist the patient with a walking exercise program.

Answer: B. Assess the patient’s respiratory status and oxygen saturation immediately.

Explanation:
When caring for patients with heart failure, nurses should prioritize interventions using the ABCs (Airway, Breathing, and Circulation). Increasing shortness of breath and orthopnea may indicate worsening pulmonary congestion, making respiratory assessment the immediate priority. Evaluating oxygen saturation, lung sounds, respiratory rate, and work of breathing helps determine the severity of the patient’s condition and guides timely interventions such as oxygen therapy or provider notification. Patient education and long-term lifestyle modifications remain important but should be addressed after immediate respiratory concerns have been evaluated. Prioritization of care is a major focus of the CMSRN certification exam.

Question 2: A postoperative patient suddenly becomes restless, anxious, and reports difficulty breathing. The nurse notes an oxygen saturation of 88% on room air. What is the nurse’s priority action?

A. Encourage the patient to drink more fluids.
B. Apply oxygen, assess the patient, and notify the healthcare provider as appropriate.
C. Document the findings and reassess in one hour.
D. Assist the patient to ambulate in the hallway.

Answer: B. Apply oxygen, assess the patient, and notify the healthcare provider as appropriate.

Explanation:
Acute changes in respiratory status require immediate nursing intervention. Restlessness, anxiety, dyspnea, and decreased oxygen saturation may indicate hypoxemia or another serious postoperative complication requiring prompt assessment. The nurse should first support oxygenation, perform a focused respiratory assessment, and notify the healthcare provider according to clinical findings and facility protocols. Delaying treatment could place the patient at significant risk. CMSRN exam questions frequently emphasize prioritization, early recognition of patient deterioration, and evidence-based nursing interventions.

Question 3: A patient with diabetes asks why blood glucose levels are monitored frequently while hospitalized, even though they are normally well controlled at home. Which response by the nurse is most appropriate?

A. “Hospitalized patients never require their usual diabetes medications.”
B. “Illness, stress, medications, and changes in activity can affect blood glucose levels during hospitalization.”
C. “Blood glucose only changes after surgery.”
D. “Monitoring is required only for insurance purposes.”

Answer: B. “Illness, stress, medications, and changes in activity can affect blood glucose levels during hospitalization.”

Explanation:
Hospitalization often affects blood glucose control due to physical stress, infection, surgery, medications such as corticosteroids, dietary changes, and decreased physical activity. Frequent glucose monitoring helps healthcare providers detect changes early and adjust treatment plans to prevent complications such as hypoglycemia or hyperglycemia. Patient education is an important nursing responsibility because understanding the reasons for monitoring can improve cooperation and self-management. Diabetes management and patient education are common topics on the CMSRN certification exam.

Question 4: A nurse is preparing to administer medication to a patient. Before giving the medication, the nurse verifies the patient’s identity using two approved identifiers according to facility policy. What is the primary purpose of this safety practice?

A. To reduce medication administration time.
B. To help prevent medication errors by ensuring the correct patient receives the prescribed medication.
C. To eliminate the need for documenting medication administration.
D. To reduce pharmacy workload.

Answer: B. To help prevent medication errors by ensuring the correct patient receives the prescribed medication.

Explanation:
Verifying patient identity with two approved identifiers is a fundamental patient safety practice and one of the “rights” of safe medication administration. This process helps prevent wrong-patient medication errors, which can result in serious harm. Nurses should consistently follow organizational policies before administering medications, collecting specimens, or performing procedures. Medication safety and error prevention are essential concepts tested on the CMSRN certification exam because they directly support high-quality patient care.

Question 5: A patient recovering from surgery asks the nurse why it is important to begin walking as soon as it is safe after the procedure. Which explanation is most appropriate?

A. “Walking only helps reduce boredom during recovery.”
B. “Early ambulation helps reduce the risk of complications such as blood clots, pneumonia, and decreased bowel function.”
C. “Walking replaces the need for pain medication.”
D. “Patients are required to walk immediately after every surgery regardless of their condition.”

Answer: B. “Early ambulation helps reduce the risk of complications such as blood clots, pneumonia, and decreased bowel function.”

Explanation:
Early ambulation is an evidence-based nursing intervention that promotes circulation, improves lung expansion, stimulates gastrointestinal function, and reduces the risk of complications such as deep vein thrombosis (DVT), postoperative pneumonia, constipation, and muscle weakness. Nurses assess each patient’s condition before initiating mobility and provide appropriate assistance to ensure safety. Understanding postoperative nursing care, patient education, and complication prevention is an important component of the CMSRN certification exam because these concepts are encountered frequently in medical-surgical nursing practice.