HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 5.5 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L indicates metabolic acidosis in a client with DKA, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis, which is reflected by a low serum bicarbonate level. Correcting the low serum bicarbonate is crucial to normalize the metabolic acidosis and improve the client's condition. While elevated serum glucose (choice A) and urine ketones (choice D) are characteristic of DKA, addressing the metabolic acidosis takes precedence. Serum potassium (choice B) levels may also need monitoring and management, but correcting the acidosis is the priority to prevent complications like cardiovascular collapse.
2. The practical nurse (PN) is assigned to work with three registered nurses (RNs) who are caring for neurologically compromised clients. The client with which change in status is best to assign to the PN?
- A. Diabetic ketoacidosis with a Glasgow Coma Scale score change from 10 to 7.
- B. Myxedema coma with a blood pressure change from 80/50 to 70/40.
- C. Viral meningitis with a temperature change from 101°F to 102°F.
- D. Subdural hematoma with a blood pressure change from 150/80 to 170/60.
Correct answer: C
Rationale: The client with viral meningitis and a temperature change is the most stable and appropriate for assignment to the PN. A change in temperature from 101°F to 102°F is not as critical as changes in Glasgow Coma Scale score, blood pressure, or wider blood pressure variations. The other clients require more complex monitoring and intervention due to their critical changes in status.
3. The client with chronic obstructive pulmonary disease (COPD) is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dl
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is concerning in a client with COPD receiving supplemental oxygen as it indicates metabolic acidosis, which can occur due to the body compensating for chronic respiratory acidosis. This condition requires immediate intervention to restore the acid-base balance. Choice A, serum sodium of 135 mEq/L, is within normal range (135-145 mEq/L) and not directly related to COPD or oxygen therapy. Choice B, serum potassium of 4.0 mEq/L, falls within the normal range (3.5-5.0 mEq/L) and is not typically affected by COPD or oxygen therapy. Choice D, serum glucose of 300 mg/dl, though elevated, is not directly related to COPD or oxygen therapy and would require management but is not the most concerning value in this scenario.
4. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which assessment finding requires immediate intervention?
- A. Use of accessory muscles
- B. Oxygen saturation of 90%
- C. Respiratory rate of 24 breaths per minute
- D. Blood pressure of 110/70 mmHg
Correct answer: A
Rationale: The correct answer is A: Use of accessory muscles. This finding indicates increased work of breathing in a client with COPD and may signal respiratory failure, requiring immediate intervention. In COPD, the use of accessory muscles suggests that the client is in distress and struggling to breathe effectively. Oxygen saturation of 90% is within an acceptable range for a client with COPD receiving supplemental oxygen and does not require immediate intervention. A respiratory rate of 24 breaths per minute is slightly elevated but not a critical finding. A blood pressure of 110/70 mmHg is within the normal range for an adult and does not indicate a need for immediate intervention in this scenario.
5. Which nursing intervention is most important when caring for a client with myasthenia gravis?
- A. Encourage the client to rest frequently.
- B. Administer medication 30 minutes before meals.
- C. Maintain a patent airway.
- D. Monitor for signs of respiratory infection.
Correct answer: C
Rationale: Maintaining a patent airway is crucial for clients with myasthenia gravis because muscle weakness can affect the muscles responsible for breathing, potentially leading to respiratory compromise. Encouraging rest, administering medication, and monitoring for respiratory infections are important aspects of care but do not take precedence over ensuring a patent airway for adequate oxygenation.
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