HESI RN
Evolve HESI Medical Surgical Practice Exam
1. The nurse is teaching the main principles of hemodialysis to a client with chronic kidney disease. Which statement by the client indicates a need for further teaching by the nurse?
- A. My sodium level changes due to the movement from the blood into the dialysate.
- B. Dialysis works by the movement of wastes from higher to lower concentration.
- C. Extra fluid can be pulled from the blood by osmosis.
- D. The dialysate is similar to blood but without any toxins.
Correct answer: B
Rationale: The correct answer is B because dialysis works by the movement of solutes from an area of higher concentration to an area of lower concentration, which is known as diffusion. The other statements are accurate: A correctly describes the movement of sodium during hemodialysis, C explains the removal of excess fluid by osmosis, and D highlights the purpose of the dialysate in removing toxins from the blood.
2. A healthcare professional reviews the blood gas results of a client in respiratory distress. The pH is 7.32, and the PCO2 is 50 mm Hg. Which of the following acid-base imbalances does the professional recognize in these findings?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: C
Rationale: In respiratory acidosis, the pH is low (<7.35) and the PCO2 is increased (>45 mm Hg). These findings indicate that the client is experiencing respiratory acidosis, a condition where there is an excess of carbon dioxide in the blood due to inadequate ventilation, commonly seen in respiratory distress. Metabolic acidosis (Choice A) is characterized by a low pH and decreased bicarbonate levels, which is not the case in this scenario. Metabolic alkalosis (Choice B) is associated with a high pH and increased bicarbonate levels. Respiratory alkalosis (Choice D) is marked by a high pH and decreased PCO2, opposite to the values presented in the blood gas results of this client.
3. While assessing a female client who is chronically fatigued and was recently diagnosed with adrenal insufficiency, the client tells the nurse that she is very nervous that her hospitalization will cause her to lose her job. Which intervention should the nurse implement first?
- A. Teach the client about the risk for infection.
- B. Offer support and care measures to reduce anxiety and stress.
- C. Encourage the client to rest quietly to reduce fatigue.
- D. Place a referral to social services to discuss financial options.
Correct answer: B
Rationale: In this scenario, the priority intervention for the nurse is to offer support and care measures to reduce anxiety and stress. Addressing the client's emotional distress is crucial as the stress can exacerbate adrenal insufficiency. While teaching the client about the risk for infection (Choice A) is important, addressing the immediate emotional needs takes precedence. Encouraging the client to rest quietly (Choice C) is beneficial but does not directly address the client's current distress about job loss. Referring the client to social services (Choice D) for financial options is important, but at this moment, addressing the client's anxiety is the priority to promote emotional well-being.
4. The nurse is teaching a patient who will be discharged home from the hospital to take amoxicillin (Amoxil) twice daily for 10 days. Which statement by the nurse is correct?
- A. Discontinue the antibiotic when your temperature returns to normal and your symptoms have improved.
- B. If diarrhea occurs, stop taking the drug immediately and contact your provider.
- C. Stop taking the drug and notify your provider if you develop a rash while taking this drug.
- D. You may save any unused antibiotic to use if your symptoms recur.
Correct answer: C
Rationale: Patients who develop signs of allergy, such as rash, should notify their provider before continuing medication therapy. Patients should be counseled to continue taking their antibiotics until completion of the prescribed regimen even when they feel well. Diarrhea is an adverse effect but does not warrant cessation of the drug. Before deciding to stop taking a medication due to a side effect, encourage the patient to contact the provider first. Patients should discard any unused antibiotic.
5. A client’s baseline vital signs are temperature 98°F oral, pulse 74 beats/min, respiratory rate 18 breaths/min, and blood pressure 124/76 mm Hg. The client suddenly spikes a fever to 103°F. Which of the following respiratory rates would the nurse anticipate as part of the body’s response to the change in client status?
- A. 12 breaths/min
- B. 16 breaths/min
- C. 18 breaths/min
- D. 22 breaths/min
Correct answer: D
Rationale: When a client experiences a fever, there is an increase in body temperature, leading to a higher metabolic rate and oxygen demand. As a result, the respiratory rate typically increases to meet the body's increased oxygen needs. Therefore, in response to the fever spike from 98°F to 103°F, the nurse would anticipate a higher respiratory rate. Choices A, B, and C are incorrect because a decrease in body temperature, not an increase as seen in fever, would lead to a decrease in respiratory rate to conserve energy and oxygen consumption.
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