HESI RN
HESI Medical Surgical Exam
1. The healthcare provider is assessing a client with chronic renal failure who is receiving hemodialysis. Which of the following findings would indicate that the client is experiencing a complication of the treatment?
- A. Clear dialysate outflow.
- B. Blood pressure of 150/90 mm Hg.
- C. Increased heart rate.
- D. Fatigue.
Correct answer: B
Rationale: A blood pressure of 150/90 mm Hg during hemodialysis may indicate fluid overload or an ineffective dialysis session, which can lead to complications such as heart failure or pulmonary edema. This finding should be reported promptly for further evaluation and intervention. Clear dialysate outflow is a normal and expected finding during hemodialysis, indicating proper filtration of waste products. Increased heart rate can be a normal compensatory response to hemodialysis due to fluid shifts and should be monitored but does not necessarily indicate a complication. Fatigue is a common symptom in clients with chronic renal failure undergoing hemodialysis and is not specific to complications of the treatment.
2. The nurse is preparing to administer the first dose of an antibiotic to a patient admitted for a urinary tract infection. Which action is most important prior to administering the antibiotic?
- A. Administering a small test dose to determine if hypersensitivity exists
- B. Having epinephrine available in case of a severe hypersensitivity reaction
- C. Monitoring baseline vital signs, including temperature and blood pressure
- D. Obtaining a specimen for culture and sensitivity
Correct answer: D
Rationale: The most crucial action before administering an antibiotic for a urinary tract infection is to obtain a specimen for culture and sensitivity. This ensures the accurate identification of the causative organism and helps determine the most effective antibiotic therapy. Administering a test dose to detect hypersensitivity is usually reserved for cases with a strong suspicion of allergy to a needed antibiotic. Keeping epinephrine available is important when there is a significant risk of a severe allergic reaction. Monitoring baseline vital signs is essential during antibiotic therapy but is not the top priority before administering the first dose.
3. A client is admitted with acute kidney injury (AKI) and a urine output of 2000 mL/day. What is the major concern of the nurse regarding this client’s care?
- A. Edema and pain
- B. Electrolyte and fluid imbalance
- C. Cardiac and respiratory status
- D. Mental health status
Correct answer: B
Rationale: The major concern for a client admitted with acute kidney injury (AKI) and a high urine output of 2000 mL/day is electrolyte and fluid imbalance. In AKI, there may be an inflammatory cause leading to proteins entering the glomerulus, resulting in fluid being held in the filtrate and causing polyuria. Electrolyte loss and fluid balance are critical to monitor and manage in AKI cases. Edema and pain are not typically associated with fluid loss. While changes in cardiac, respiratory, and mental health status can occur if electrolyte imbalance is not addressed, the primary focus should be on managing electrolyte and fluid balance to prevent further complications.
4. A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.
5. A client who has heart failure is admitted with a serum potassium level of 2.9 mEq/L. Which action is most important for the nurse to implement?
- A. Administer 20 mEq of potassium chloride.
- B. Initiate continuous cardiac monitoring.
- C. Arrange a consultation with the dietitian.
- D. Educate about the side effects of diuretics.
Correct answer: B
Rationale: Hypokalemia, defined as a serum potassium level below the normal range of 3.5 to 5 mEq/L, can lead to changes in myocardial irritability and ECG waveform, potentially causing life-threatening dysrhythmias. Therefore, the priority action for the nurse is to initiate continuous cardiac monitoring to promptly detect any abnormal heart rhythms or ventricular ectopy. This monitoring is crucial for assessing the impact of potassium replacement therapy on the cardiac rhythm and ensuring the safety of the client. While administering potassium chloride is important for correcting the hypokalemia, it should occur after cardiac monitoring is in place. Consulting with a dietitian and educating about diuretic side effects are relevant aspects of care but are not the immediate priority in this situation where cardiac monitoring takes precedence for timely intervention.
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