HESI RN
HESI 799 RN Exit Exam
1. The nurse is caring for a client with acute respiratory distress syndrome (ARDS) who is receiving mechanical ventilation. Which assessment finding requires immediate intervention?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 28 breaths per minute
- C. Tidal volume of 300 ml
- D. Blood pressure of 110/70 mmHg
Correct answer: C
Rationale: The correct answer is C. A tidal volume of 300 ml is concerning in a client with ARDS on mechanical ventilation because it indicates hypoventilation, which can lead to inadequate gas exchange and worsening respiratory status. This finding requires immediate intervention to optimize ventilation and oxygenation. Options A, B, and D are not as critical in this scenario. An oxygen saturation of 90% may be acceptable depending on the client's baseline condition and the target range set by the healthcare provider. A respiratory rate of 28 breaths per minute is slightly elevated but may not be immediately alarming. A blood pressure of 110/70 mmHg is within normal limits and does not require urgent intervention.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which intervention is most important?
- A. Administer intravenous fluids as prescribed.
- B. Monitor the client's urine output.
- C. Administer insulin as prescribed.
- D. Administer 50% dextrose IV push.
Correct answer: C
Rationale: Administering insulin is the most important intervention in managing diabetic ketoacidosis. In DKA, there is a lack of insulin leading to hyperglycemia and ketosis. Insulin administration helps to reduce blood glucose levels and correct metabolic acidosis, which are crucial in treating DKA. Administering intravenous fluids helps with dehydration, monitoring urine output is important to assess renal function, but the priority is addressing the underlying cause of DKA by administering insulin. Administering 50% dextrose IV push is incorrect as it would further elevate blood glucose levels, which is contraindicated in DKA.
3. When administering ceftriaxone sodium (Rocephin) intravenously to a client, which finding requires the most immediate intervention by the nurse?
- A. Stridor
- B. Nausea
- C. Headache
- D. Pruritus
Correct answer: A
Rationale: The correct answer is A: Stridor. Stridor indicates bronchospasm, a serious reaction that can compromise the client's airway. Immediate intervention is crucial to prevent further respiratory distress. Nausea, headache, and pruritus are potential side effects of ceftriaxone but are not as immediately life-threatening as airway compromise indicated by stridor.
4. When planning care for a 10-year-old child with pneumonia receiving oxygen at 5l/min per nasal cannula, what principle of oxygen administration should the nurse consider?
- A. Avoid administration of oxygen at high levels for extended periods.
- B. Increase oxygen flow rate if the child is still tachypneic.
- C. Reduce oxygen levels gradually after symptoms improve.
- D. Humidify the oxygen to prevent drying of mucous membranes.
Correct answer: A
Rationale: The correct principle of oxygen administration to consider is to avoid administering oxygen at high levels for extended periods. High levels of oxygen for prolonged periods can lead to oxygen toxicity, especially in pediatric patients. Increasing the oxygen flow rate based on tachypnea may not be necessary and can potentially lead to oxygen toxicity. Gradually reducing oxygen levels after symptoms improve may compromise the child's oxygenation. While humidifying oxygen is important to prevent drying of mucous membranes, the primary concern in this case is to avoid high oxygen levels for an extended duration to prevent oxygen toxicity.
5. Sublingual nitroglycerin is administered to a male client with unstable angina who complains of crushing chest pain. Five minutes later the client becomes nauseated, and his blood pressure drops to 60/40. Which intervention should the nurse implement?
- A. Administer a second dose of nitroglycerin.
- B. Infuse a rapid IV normal saline bolus.
- C. Begin external chest compressions.
- D. Give a PRN antiemetic medication.
Correct answer: B
Rationale: In this scenario, the client's symptoms of nausea and a significant drop in blood pressure suggest a potential right ventricular infarction. The appropriate intervention for this situation is to infuse a rapid IV normal saline bolus. This fluid resuscitation helps improve cardiac output by increasing preload, which can be beneficial in right ventricular infarction. Administering a second dose of nitroglycerin may further lower blood pressure. External chest compressions are not indicated in this case as the client has a pulse. Providing an antiemetic medication does not address the underlying issue of hypotension and potential right ventricular involvement.
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