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 with type 1 diabetes mellitus is learning to administer insulin. What is the best site for the nurse to recommend for insulin injection?
- A. Abdomen
- B. Thigh
- C. Upper arm
- D. Buttock
Correct answer: A
Rationale: The correct answer is the abdomen. The abdomen is the recommended site for insulin injection due to its faster absorption rate compared to other sites. Insulin injected into the abdomen is absorbed more quickly, leading to better glycemic control. The thigh and upper arm are also common sites for insulin injection, but they have slower absorption rates than the abdomen. The buttock is not a preferred site for insulin injection due to inconsistent absorption and potential risk of injecting into muscle instead of fatty tissue.
3. The nurse is teaching a client with hypertension about lifestyle modifications. Which recommendation is most effective for lowering blood pressure?
- A. Increase intake of red meat
- B. Engage in regular physical activity
- C. Consume a high-sodium diet
- D. Limit fluid intake to 1 liter per day
Correct answer: B
Rationale: Engaging in regular physical activity is a highly effective recommendation for lowering blood pressure and improving overall cardiovascular health. Regular exercise helps to strengthen the heart, improve blood circulation, and manage weight, all of which contribute to reducing blood pressure levels. Choices A, C, and D are incorrect. Increasing intake of red meat can lead to higher saturated fat consumption, which is detrimental to heart health. Consuming a high-sodium diet can exacerbate hypertension by increasing blood pressure. Limiting fluid intake to 1 liter per day may lead to dehydration and is not a recommended approach for managing hypertension.
4. 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.
5. What action should the nurse implement in caring for a client following an electroencephalogram (EEG)?
- A. Monitor the client's vital signs every 4 hours
- B. Assess the client's lower extremities for sensation
- C. Instruct the client to maintain bed rest
- D. Wash any paste from the client's hair and scalp
Correct answer: D
Rationale: The correct action the nurse should implement after an EEG is to wash any paste from the client's hair and scalp. This is crucial to prevent irritation and infection at the EEG site. Monitoring vital signs every 4 hours is not specifically indicated after an EEG. Assessing the client's lower extremities for sensation is unrelated to caring for a client post-EEG. While rest may be recommended after the procedure, there is no standard requirement for a specific duration of bed rest.
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