HESI RN
HESI RN CAT Exit Exam 1
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who has a respiratory rate of 32 breaths/min and a heart rate of 110 beats/min. What action should the nurse take first?
- A. Administer a bronchodilator
- B. Encourage deep breathing and coughing
- C. Assess the client's oxygen saturation level
- D. Obtain an arterial blood gas
Correct answer: C
Rationale: The correct action for the nurse to take first is to assess the client's oxygen saturation level. In a client with COPD and abnormal respiratory and heart rates, determining the oxygen saturation helps evaluate the adequacy of oxygen exchange and the severity of respiratory distress. Administering a bronchodilator (choice A) can be appropriate but assessing oxygen saturation takes priority. Encouraging deep breathing and coughing (choice B) may not address the immediate need for oxygenation assessment. Obtaining an arterial blood gas (choice D) is important but typically follows the initial assessment of oxygen saturation.
2. A 59-year-old male client is brought to the emergency room where he is assessed to have a Glasgow Coma Scale of 3. Based on this assessment, how should the nurse characterize the client's condition?
- A. The client is experiencing increased intracranial pressure
- B. He has a good prognosis for recovery
- C. This client is conscious, but is not oriented to time and place
- D. He is in a coma, and has a very poor prognosis
Correct answer: D
Rationale: A Glasgow Coma Scale of 3 indicates severe neurological impairment, suggesting a deep coma or even impending death. This client's condition is critical, and he has a very poor prognosis. Choice A is incorrect because a GCS of 3 does not directly indicate increased intracranial pressure. Choice B is incorrect as a GCS of 3 signifies a grave neurological status. Choice C is incorrect as a GCS of 3 represents a state of unconsciousness rather than being conscious but disoriented.
3. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
4. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?
- A. Blood glucose of 140 mg/dL
- B. White blood cell count of 8000/mm³
- C. Serum potassium of 3.8 mEq/L
- D. Serum calcium of 7.8 mg/dL
Correct answer: D
Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.
5. Which action should the nurse include in the plan of care for a client who is receiving acyclovir (Zovirax) IV for the treatment of herpes zoster (shingles)?
- A. Initiate cardiac telemetry monitoring
- B. Maintain continuous pulse oximetry
- C. Perform capillary glucose measurements
- D. Monitor serum creatinine levels
Correct answer: D
Rationale: The correct answer is to monitor serum creatinine levels. Acyclovir can potentially impact kidney function, making it essential to monitor serum creatinine levels to assess renal function. Option A, initiating cardiac telemetry monitoring, is not directly related to acyclovir administration for herpes zoster. Option B, maintaining continuous pulse oximetry, is more relevant in assessing respiratory status rather than monitoring for acyclovir-related side effects. Option C, performing capillary glucose measurements, is not directly associated with acyclovir therapy for herpes zoster.
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