HESI LPN
Medical Surgical Assignment Exam HESI
1. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 52, PaCO2 59, HCO3 33. Which statement describes the most likely cause of the simultaneous increase in both PaO2 and PaCO2?
- A. The client is hyperventilating due to anxiety.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client is experiencing respiratory alkalosis.
- D. The client is experiencing metabolic acidosis.
Correct answer: B
Rationale: Oxygen therapy can reduce the hypoxic drive in COPD patients, leading to increased PaCO2 levels while improving oxygenation (PaO2). In this case, the increase in PaO2 and PaCO2 is due to the reduction of the hypoxic drive by the supplemental oxygen. Choice A is incorrect because hyperventilation would lead to decreased PaCO2. Choice C is incorrect as the ABG values do not indicate respiratory alkalosis. Choice D is incorrect as the ABG values do not support metabolic acidosis.
2. When interacting with the parents of a SIDS infant, the nurse should attempt to assist the parents with:
- A. Encouraging the parents to have another baby.
- B. Encouraging the parents to remain stoic.
- C. Allaying feelings of guilt and blame.
- D. Learning how the event could have been prevented.
Correct answer: C
Rationale: The correct answer is C: Allaying feelings of guilt and blame. When parents experience the loss of a SIDS infant, they often struggle with intense feelings of guilt and self-blame. The nurse's role is to provide emotional support and help alleviate these feelings. Choices A and B are incorrect as encouraging the parents to have another baby or to remain stoic is not appropriate or helpful in this situation. Choice D is also incorrect because focusing on how the event could have been prevented may exacerbate feelings of guilt and is not the immediate priority in supporting grieving parents.
3. A client who experienced partial-thickness burns with over 50% body surface area (BSA) 2 weeks ago suddenly becomes restless and agitated.
- A. Increase the room temperature.
- B. Assess the oxygen saturation.
- C. Continue to monitor vital signs.
- D. Notify the rapid response team.
Correct answer: D
Rationale: In a burn patient with sudden restlessness and agitation, it is crucial to consider hypoxia or other critical conditions. As such, notifying the rapid response team is the most appropriate action to ensure prompt assessment and intervention. Increasing room temperature (Choice A) is not the priority in this scenario. While monitoring vital signs (Choice C) is important, the sudden change in behavior warrants immediate action. Assessing oxygen saturation (Choice B) is a step in the right direction, but involving the rapid response team ensures a comprehensive evaluation and timely management of the patient's condition.
4. A client with chronic kidney disease is receiving epoetin alfa. Which laboratory value should the nurse monitor to determine the effectiveness of the treatment?
- A. Blood urea nitrogen (BUN)
- B. Serum creatinine
- C. Hemoglobin and hematocrit
- D. Serum potassium
Correct answer: C
Rationale: The correct answer is C: Hemoglobin and hematocrit. Epoetin alfa is a medication that stimulates red blood cell production, so monitoring hemoglobin and hematocrit levels is essential to assess its effectiveness. These values reflect the oxygen-carrying capacity of the blood and can indicate if the treatment is improving anemia related to chronic kidney disease. Choices A, B, and D are incorrect. Blood urea nitrogen (BUN) and serum creatinine are indicators of kidney function, while serum potassium levels are monitored due to electrolyte imbalances commonly seen in kidney disease, but they do not directly reflect the effectiveness of epoetin alfa.
5. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
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