HESI LPN
Adult Health 2 Final Exam
1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which laboratory finding is most indicative of this condition?
- A. Serum glucose of 180 mg/dL
- B. Blood pH of 7.30
- C. Positive urine ketones
- D. Serum bicarbonate of 25 mEq/L
Correct answer: C
Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.
2. A client who has just been diagnosed with tuberculosis (TB) is being discharged home. Which instruction is most important for the nurse to provide?
- A. Avoid close contact with others until treatment is complete
- B. Take all prescribed medications as directed
- C. Schedule a follow-up appointment with the healthcare provider
- D. Wear a mask when in public places
Correct answer: B
Rationale: The correct answer is B: 'Take all prescribed medications as directed.' This instruction is the most important because adherence to the prescribed medication regimen is crucial in treating tuberculosis effectively and preventing the development of drug-resistant TB. While choice A is important for infection control, ensuring treatment adherence through proper medication intake takes precedence. Choice C is also essential for monitoring progress but is not as critical as ensuring medication compliance. Choice D is relevant for preventing transmission but is not as crucial as ensuring proper treatment by taking medications as directed.
3. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is experiencing shortness of breath. What is the priority nursing intervention?
- A. Administer bronchodilator therapy as prescribed
- B. Encourage deep breathing and coughing exercises
- C. Position the client in a high-Fowler's position
- D. Increase the oxygen flow rate
Correct answer: C
Rationale: The priority nursing intervention for a client with COPD experiencing shortness of breath is to position the client in a high-Fowler's position. This position helps improve lung expansion and ease breathing in COPD patients. While administering bronchodilator therapy as prescribed (Choice A) is important, it is not the priority in this scenario. Encouraging deep breathing and coughing exercises (Choice B) can be beneficial but do not take precedence over positioning for improved respiratory function. Increasing the oxygen flow rate (Choice D) can be considered after the initial positioning to relieve respiratory distress, making it a later intervention.
4. A client with chronic obstructive pulmonary disease (COPD) is receiving home oxygen therapy. What is the most important instruction the nurse should provide?
- A. Use oxygen at the highest flow rate tolerated
- B. Avoid wearing oxygen during physical activity
- C. Do not smoke while using oxygen
- D. Store oxygen tanks in a cool, dark place
Correct answer: C
Rationale: The correct answer is C: 'Do not smoke while using oxygen.' Smoking while using oxygen can lead to a serious fire hazard, as oxygen supports combustion. This instruction is crucial to prevent potential harm to the client. Choices A, B, and D are incorrect. Using oxygen at the highest flow rate tolerated can be harmful, avoiding wearing oxygen during physical activity may limit the client's mobility unnecessarily, and storing oxygen tanks in a cool, dark place, although important, is not as critical as the instruction to avoid smoking while using oxygen.
5. The nurse is assessing a client who has just received a blood transfusion. The client reports chills and back pain. What is the nurse's priority action?
- A. Slow the rate of transfusion.
- B. Administer an antipyretic.
- C. Stop the transfusion immediately.
- D. Notify the healthcare provider.
Correct answer: C
Rationale: The correct answer is C: Stop the transfusion immediately. Chills and back pain are indicative of a possible transfusion reaction, which is a critical situation. Stopping the transfusion is crucial to prevent further complications and ensure the client's safety. Slowing the rate of transfusion (Choice A) is not sufficient in this case as immediate action is required. Administering an antipyretic (Choice B) may help with fever but does not address the potential severe reaction. Notifying the healthcare provider (Choice D) can be done after stopping the transfusion, but the priority is to halt the infusion to prevent harm.
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