HESI RN
HESI RN Exit Exam
1. A client with chronic obstructive pulmonary disease (COPD) is experiencing shortness of breath and has a prescription for oxygen therapy. What is the maximum amount of oxygen the nurse should administer without a healthcare provider's order?
- A. 2 liters per minute
- B. 4 liters per minute
- C. 6 liters per minute
- D. 8 liters per minute
Correct answer: B
Rationale: The correct answer is 4 liters per minute. Without a healthcare provider's order, the nurse should administer a maximum of 4 liters per minute of oxygen to prevent carbon dioxide retention in COPD clients. Higher flow rates can lead to oxygen toxicity and worsen the client's condition. Choices A, C, and D exceed the safe limit for oxygen administration without a healthcare provider's order.
2. The nurse is caring for a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which assessment finding requires immediate intervention?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 24 breaths per minute
- C. Use of accessory muscles
- D. Inspiratory crackles
Correct answer: C
Rationale: The correct answer is C. The use of accessory muscles is most concerning in a client with COPD receiving supplemental oxygen as it indicates increased work of breathing, requiring immediate intervention. Oxygen saturation of 90% is acceptable in a client with COPD. A respiratory rate of 24 breaths per minute is slightly elevated but not as critical as the use of accessory muscles. Inspiratory crackles may be present in clients with COPD due to underlying lung changes but do not require immediate intervention unless associated with other concerning symptoms.
3. A nurse is preparing to insert a nasogastric tube (NGT) in a client. Which action should the nurse take first?
- A. Assess the client's history for nasal trauma or surgery
- B. Ask the client to cough and deep breathe.
- C. Measure the length of the tube to be inserted.
- D. Explain the procedure to the client and obtain consent.
Correct answer: D
Rationale: The correct first action for the nurse to take when preparing to insert a nasogastric tube (NGT) in a client is to explain the procedure to the client and obtain consent. It is crucial to ensure that the client is informed about the procedure, understands it, and consents to it before proceeding. Assessing the client's history for nasal trauma or surgery (Choice A) is important but can be done after obtaining consent. Asking the client to cough and deep breathe (Choice B) is not directly related to the initial step of preparing for NGT insertion. Measuring the length of the tube to be inserted (Choice C) is a necessary step but should come after explaining the procedure and obtaining consent.
4. When a client with a history of atrial fibrillation is admitted with a new onset of confusion, which diagnostic test should the nurse anticipate preparing the client for first?
- A. Electrocardiogram (ECG)
- B. Chest X-ray
- C. Arterial blood gases (ABGs)
- D. Echocardiogram
Correct answer: A
Rationale: The correct answer is an Electrocardiogram (ECG). When a client with a history of atrial fibrillation presents with new-onset confusion, an ECG is crucial to assess for cardiac ischemia, which could be a potential cause of the confusion. A chest X-ray (Choice B) is not typically the first-line diagnostic test for evaluating confusion in a client with atrial fibrillation. Arterial blood gases (ABGs) (Choice C) are more useful in assessing oxygenation and acid-base balance rather than the cause of confusion in this scenario. While an echocardiogram (Choice D) provides valuable information about cardiac structure and function, it is usually not the initial diagnostic test needed in the evaluation of acute confusion in a client with atrial fibrillation.
5. 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.
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