HESI RN
HESI RN Exit Exam 2023
1. A client with a tracheostomy has thick, tenacious secretions. Which intervention should the nurse implement first?
- A. Perform deep suctioning every 2 to 4 hours.
- B. Encourage the client to drink plenty of fluids.
- C. Increase humidity in the client's room.
- D. Administer a mucolytic agent.
Correct answer: C
Rationale: Increasing humidity in the client's room can help liquefy thick secretions and facilitate easier airway clearance in a client with a tracheostomy. This intervention should be implemented first as it is non-invasive and can often effectively address the issue of thick secretions. Performing deep suctioning (Choice A) should not be the first intervention as it is more invasive and should be done based on assessment findings. Encouraging the client to drink plenty of fluids (Choice B) is beneficial but may not provide immediate relief for thick secretions. Administering a mucolytic agent (Choice D) requires a healthcare provider's prescription and should be based on assessment data and the client's condition.
2. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which laboratory value requires immediate intervention?
- A. Serum glucose of 600 mg/dL
- B. Serum osmolarity of 320 mOsm/kg
- C. Serum sodium of 130 mEq/L
- D. Serum potassium of 5.0 mEq/L
Correct answer: B
Rationale: A serum osmolarity of 320 mOsm/kg is concerning in a client with HHS because it indicates severe dehydration and hyperosmolarity, which requires immediate intervention. In HHS, the elevated serum osmolarity leads to neurological symptoms and can result in serious complications if not addressed promptly. While a high serum glucose level (choice A) is typical in HHS, the osmolarity is a more direct indicator of dehydration and severity. Serum sodium (choice C) and potassium levels (choice D) are important but do not pose an immediate threat to the client's condition compared to the severe hyperosmolarity indicated by a high serum osmolarity level.
3. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which laboratory value requires immediate intervention?
- A. Arterial blood gas (ABG) values
- B. Serum potassium level
- C. Serum sodium level
- D. Blood glucose level
Correct answer: A
Rationale: The correct answer is A: Arterial blood gas (ABG) values. In a client with COPD and pneumonia, ABG values are crucial as they provide essential information about the client's respiratory status, including oxygenation and acid-base balance. Immediate intervention may be required to optimize respiratory function based on ABG results. Serum potassium, sodium, and blood glucose levels are important parameters to monitor in various conditions but are not as directly related to the respiratory status in a client with COPD and pneumonia. Therefore, they do not require immediate intervention compared to ABG values.
4. The nurse discovers that an elderly client with no history of cardiac or renal disease has an elevated serum magnesium level. To further investigate the cause of this electrolyte imbalance, what information is most important for the nurse to obtain from the client's medical history?
- A. Frequency of laxative use for chronic constipation
- B. Dietary intake of magnesium-rich foods
- C. Use of magnesium-containing supplements
- D. History of alcohol use
Correct answer: A
Rationale: The correct answer is A. Frequent use of magnesium-containing laxatives can lead to hypermagnesemia, particularly in elderly clients. Option B, dietary intake of magnesium-rich foods, may contribute to elevated serum magnesium levels but is less likely the cause in this scenario. Option C, the use of magnesium-containing supplements, can also contribute to hypermagnesemia but is not as common in elderly clients without a history of using such supplements. Option D, history of alcohol use, is less relevant to the development of elevated serum magnesium levels compared to laxative use for chronic constipation.
5. The nurse is caring for a client with a history of atrial fibrillation who is receiving warfarin (Coumadin). Which laboratory value should be closely monitored?
- A. Serum potassium level
- B. Prothrombin time (PT)
- C. International Normalized Ratio (INR)
- D. Serum sodium level
Correct answer: C
Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client receiving warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation to prevent complications such as bleeding or clotting. Choices A, B, and D are incorrect. While monitoring electrolyte levels like serum potassium and sodium is important in overall client care, they are not specific to monitoring the effects of warfarin therapy. Prothrombin time (PT) is a component of INR and helps in monitoring warfarin therapy, but INR gives a standardized result that is independent of the laboratory method used, making it the preferred choice for monitoring warfarin therapy.
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