HESI RN
HESI 799 RN Exit Exam
1. A nurse plans to call the healthcare provider to report an 0600 serum potassium level of 2 mEq/L or mmol/L (SI), but the charge nurse tells the nurse that the healthcare provider does not like to receive early morning calls and will make rounds later in the morning. What action should the nurse take?
- A. Contact the healthcare provider immediately to report the laboratory value regardless of the advice.
- B. Document the finding and report it when the healthcare provider makes rounds.
- C. Notify the charge nurse that you are following the chain of command.
- D. Administer a potassium supplement and notify the provider later.
Correct answer: A
Rationale: A nurse should contact the healthcare provider immediately to report a critically low potassium level of 2 mEq/L. Potassium levels below the normal range can lead to life-threatening complications such as cardiac arrhythmias. Prompt notification is essential to ensure timely intervention and prevent harm to the patient. Option B is incorrect as delaying reporting such a critical value can jeopardize patient safety. Option C is not the priority in this situation; the focus should be on patient care. Option D is dangerous and inappropriate as administering a potassium supplement without healthcare provider's guidance can be harmful, especially with a critically low level.
2. The nurse is assessing a client with left-sided heart failure. Which finding should be reported to the healthcare provider immediately?
- A. Shortness of breath
- B. Jugular venous distention
- C. Crackles in the lungs
- D. Elevated liver enzymes
Correct answer: C
Rationale: In a client with left-sided heart failure, the presence of crackles in the lungs is the most critical finding that should be reported to the healthcare provider immediately. Crackles indicate pulmonary congestion, which requires prompt intervention to prevent respiratory compromise. Shortness of breath, though a common symptom in heart failure, is a result of pulmonary congestion, making crackles a more direct indicator of the severity of the condition. Jugular venous distention and elevated liver enzymes are important to assess in heart failure but are not as immediately concerning as crackles in the lungs, which directly reflect the impact of heart failure on the respiratory system.
3. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?
- A. Initiation of the impulses from a location outside the SA node
- B. Inability of the SA node to initiate an impulse at the normal rate
- C. Increased conduction time from the SA node to the AV junction
- D. Interference with the conduction through one or both ventricles
Correct answer: C
Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.
4. A client with chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which intervention should the nurse implement first?
- A. Administer oxygen therapy as prescribed.
- B. Elevate the head of the bed.
- C. Obtain a sputum culture.
- D. Administer antibiotics as prescribed.
Correct answer: A
Rationale: The correct answer is to administer oxygen therapy as prescribed. In COPD exacerbation, the priority is to improve oxygenation. Administering oxygen therapy helps ensure an adequate oxygen supply to the body's tissues. Elevating the head of the bed can improve ventilation but is not the first intervention needed in this situation. Obtaining a sputum culture and administering antibiotics are important in COPD exacerbation but come after ensuring proper oxygenation.
5. A client with a tracheostomy has thick, tenacious secretions. Which intervention should the nurse include in the plan of care?
- A. Encourage the client to drink plenty of fluids.
- B. Perform deep suctioning every 2 to 4 hours.
- C. Increase humidity in the client's room.
- D. Administer a mucolytic agent.
Correct answer: C
Rationale: Increasing humidity in the client's room can help liquefy thick secretions and facilitate easier airway clearance in a client with a tracheostomy. Encouraging the client to drink plenty of fluids can be beneficial for overall hydration but may not directly address thick secretions. Deep suctioning every 2 to 4 hours can be harmful and cause trauma to the airway lining. Administering a mucolytic agent should be done under the healthcare provider's order and may not be the initial intervention for thick secretions.
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