HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. The nurse is teaching a client about coronary artery disease (CAD) preventive health. Which behavior stated by the client indicates a need for additional information and teaching?
- A. Increasing physical activity.
- B. Eating a low-fat diet.
- C. Decreasing the number of cigarettes smoked per day.
- D. Monitoring blood pressure regularly.
Correct answer: C
Rationale: The correct answer is C. Decreasing the number of cigarettes smoked per day is not sufficient for CAD prevention. Smoking cessation is crucial in reducing the risk of CAD. While increasing physical activity, eating a low-fat diet, and monitoring blood pressure regularly are all positive behaviors for CAD prevention, quitting smoking should be emphasized due to its significant impact on cardiovascular health.
3. An infant has been diagnosed with cradle cap. What is the correct intervention to treat the scalp?
- A. Alcohol
- B. Mineral oil
- C. Calamine
- D. A&D ointment
Correct answer: B
Rationale: Cradle cap is a common condition in infants characterized by crusty patches on the scalp. The correct intervention to treat cradle cap is to apply mineral oil. Mineral oil helps soften the crusty patches, making it easier to remove them gently. Alcohol (Choice A) can be too harsh for an infant's sensitive skin and may cause irritation. Calamine (Choice C) is used to relieve itching associated with conditions like chickenpox or insect bites, not for treating cradle cap. A&D ointment (Choice D) is typically used for diaper rash and minor skin irritations, not for cradle cap.
4. A client with a spinal cord injury at the level of T1 is at risk for autonomic dysreflexia. Which symptom is indicative of this condition?
- A. Hypotension
- B. Tachycardia
- C. Severe headache
- D. Flushed skin below the level of injury
Correct answer: C
Rationale: Corrected Rationale: Autonomic dysreflexia is a condition commonly seen in clients with spinal cord injuries at T6 or above. It is characterized by a sudden onset of severe hypertension, pounding headache, profuse sweating, nasal congestion, and flushing of the skin above the level of injury. The severe headache is a key symptom resulting from uncontrolled hypertension. Choices A, B, and D are incorrect as autonomic dysreflexia typically presents with hypertension, not hypotension, tachycardia, or flushed skin below the level of injury.
5. A client with Addison's disease started taking hydrocortisone in a divided daily dose last week. It is most important for the nurse to monitor which serum laboratory value?
- A. Osmolarity
- B. Glucose
- C. Albumin
- D. Platelets
Correct answer: B
Rationale: The correct answer is B: Glucose. Hydrocortisone can lead to increased blood glucose levels, so monitoring glucose is crucial to assess for hyperglycemia, a common side effect of corticosteroid therapy. Monitoring osmolarity (choice A) is not typically indicated in this scenario. Albumin (choice C) and platelets (choice D) are not directly affected by hydrocortisone therapy and are not the primary focus of monitoring in this case.
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