HESI RN
Pharmacology HESI
1. A client with trigeminal neuralgia tells the nurse that acetaminophen (Tylenol) is taken on a frequent daily basis for relief of generalized discomfort. The nurse reviews the client's laboratory results and determines that which of the following indicates toxicity associated with the medication?
- A. Sodium of 140 mEq/L
- B. Prothrombin time of 12 seconds
- C. Platelet count of 400,000 cells/mm³
- D. A direct bilirubin level of 2 mg/dL
Correct answer: D
Rationale: A direct bilirubin level of 2 mg/dL indicates liver damage, which can be caused by an overdose of acetaminophen. Acetaminophen toxicity can lead to liver injury, manifesting as elevated bilirubin levels and other liver function test abnormalities.
2. A 12-year-old boy has a body mass index (BMI) of 28, a systolic pressure, and a glycosylated hemoglobin (HBA1C) of 7.8%. Which selection indicates that his mother understands the management of his diet?
- A. One whole-wheat bagel with cream cheese, two strips of bacon, six ounces of orange juice.
- B. Two eggs with toast and butter, 8 ounces of milk.
- C. Fresh fruit salad with low-fat yogurt.
- D. Pancakes with syrup and sausage links.
Correct answer: C
Rationale: The correct answer is C. Fresh fruit salad with low-fat yogurt is a healthier choice for managing the diet of a 12-year-old boy with a high BMI and elevated HBA1C. This choice provides a good balance of nutrients, fiber, and low-fat content, helping to lower BMI and maintain healthy blood sugar levels. Choices A, B, and D are less ideal as they contain higher levels of refined carbohydrates, saturated fats, and sugars, which can contribute to weight gain and worsen blood sugar control in this scenario.
3. Which activity is most important for a client recovering from a hip replacement to avoid during the first few weeks of recovery?
- A. Sitting in a chair for short periods
- B. Crossing the legs while sitting
- C. Walking with assistance
- D. Performing light stretching exercises
Correct answer: B
Rationale: The correct answer is B: Crossing the legs while sitting. Cross-leg position after a hip replacement can significantly increase the risk of hip dislocation. During the first few weeks of recovery, it is crucial for clients to avoid crossing their legs to protect the new joint. Choices A, C, and D are not as critical during the initial recovery phase. Sitting in a chair for short periods, walking with assistance, and performing light stretching exercises are generally encouraged activities that can help in the recovery process without posing a significant risk of complications like hip dislocation.
4. A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.
5. A client who has agoraphobia (a fear of crowds) is starting desensitization therapy with the therapist, and the nurse is reinforcing the process. Which intervention has the highest priority for this client's plan of care?
- A. Encourage the substitution of positive thoughts for negative ones.
- B. Establish trust by providing a calm, safe environment.
- C. Gradually expose the client to larger crowds.
- D. Encourage deep breathing when anxiety escalates in a crowd.
Correct answer: B
Rationale: Establishing trust by providing a calm and safe environment is crucial for the success of desensitization therapy in clients with agoraphobia. This approach helps the client feel safe and secure, allowing them to gradually confront their fear of crowds. Encouraging positive thoughts (choice A) is beneficial but not as immediately critical as creating a safe space. Progressively exposing the client to larger crowds (choice C) should occur after trust is established and in a controlled manner. Encouraging deep breathing (choice D) is helpful, but creating a safe environment takes precedence to build a foundation for successful desensitization.