HESI RN
HESI RN Exit Exam Capstone
1. A teenager presents to the emergency department with palpitations after vaping at a party. The client is anxious, fearful, and hyperventilating. Which acid-base imbalance does the nurse anticipate the client developing?
- A. Metabolic alkalosis
- B. Respiratory alkalosis
- C. Respiratory acidosis
- D. Metabolic acidosis
Correct answer: B
Rationale: The correct answer is B: Respiratory alkalosis. Hyperventilation from anxiety or fear causes an excessive loss of CO2, leading to respiratory alkalosis. This shift in pH results from the rapid, shallow breathing that reduces the level of carbon dioxide in the blood. Respiratory acidosis would occur in cases of poor ventilation or CO2 retention, while metabolic acidosis/alkalosis relates to disturbances in bicarbonate, not breathing patterns. Therefore, in this case, the client's hyperventilation due to anxiety would likely result in respiratory alkalosis, making option B the correct choice.
2. At 42-weeks gestation, a client refuses induction and desires a natural delivery. What is the most important action for the nurse to take?
- A. Discuss alternative ways to support her birth plan.
- B. Explain the indications for induction in post-term pregnancy.
- C. Discuss the differences between labor with oxytocin and natural labor.
- D. Ask the healthcare provider to discuss the issue with the client.
Correct answer: A
Rationale: The correct answer is to discuss alternative ways to support her birth plan. It is crucial to respect the client's autonomy and desires while ensuring their safety and well-being. Choice B is incorrect because while educating the client about the indications for induction is important, it is not the most immediate action to take in this scenario. Choice C is incorrect as it focuses on comparing labor types rather than supporting the client's birth plan. Choice D is incorrect as the nurse should first engage with the client directly before involving the healthcare provider.
3. The nurse identifies an electrolyte imbalance, a weight gain of 4.4 lbs in 24 hours, and an elevated central venous pressure for a client with full-thickness burns. Which intervention should the nurse implement?
- A. Administer diuretics
- B. Review urine output
- C. Auscultate for irregular heart rate
- D. Increase oral fluid intake
Correct answer: C
Rationale: An elevated CVP and sudden weight gain indicate fluid overload, which can strain the heart. Auscultating for an irregular heart rate is crucial as electrolyte imbalances and fluid shifts after burns can lead to cardiac complications. Monitoring the heart rate is a priority to detect any cardiac distress early. While reviewing urine output and administering diuretics are important interventions, they should come after ensuring the client's cardiac status is stable. Increasing oral fluid intake may exacerbate the fluid overload, making it an inappropriate intervention in this scenario.
4. While changing a client's chest tube dressing, the nurse notes a cracking sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?
- A. Apply a pressure dressing around the chest tube site.
- B. Administer an oral antihistamine.
- C. Assess for allergies to topical cleaning agents.
- D. Measure the area of swelling and crackling.
Correct answer: D
Rationale: When a nurse observes crepitus around a chest tube site, it could indicate subcutaneous emphysema, a potentially serious condition where air gets trapped under the skin. Measuring the area of swelling and crackling is important as it helps monitor the progression of subcutaneous emphysema. Applying a pressure dressing (choice A) might not address the underlying cause and could potentially worsen the condition. Administering an oral antihistamine (choice B) is not indicated for crepitus at a chest tube site. Assessing for allergies to topical cleaning agents (choice C) is important but not the immediate priority when crepitus is observed.
5. What is the first action the nurse should take when treating a 6-year-old child who stepped on a rusty nail?
- A. Cleanse the foot with soap and water
- B. Instruct the parent about tetanus boosters
- C. Apply a sterile dressing and refer for a tetanus booster
- D. Elevate the foot and wrap in a compression bandage
Correct answer: B
Rationale: The correct first action when a 6-year-old child steps on a rusty nail is to instruct the parent about tetanus boosters. This is important because stepping on a rusty nail increases the risk of tetanus infection. Choice A is incorrect as cleansing the foot comes after addressing the tetanus risk. Choice C is not the first action and should be done after addressing the immediate risk of tetanus. Choice D is not necessary as the priority is to prevent tetanus infection.
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