HESI RN
HESI RN CAT Exam Quizlet
1. The healthcare provider prescribes amoxicillin (Amoxil) 1.5 grams PO daily, in equally divided doses to be administered every 8 hours. The medication is available in a bottle labeled Amoxicillin (Amoxil) suspension 200 mg/5 ml. How many ml should the nurse administer every 8 hours?
- A. 10 ml
- B. 12.5 ml
- C. 15 ml
- D. 17.5 ml
Correct answer: B
Rationale: To calculate the correct dosage, first, determine the total daily dose: 1.5 grams = 1500 mg. Since the medication is 200 mg/5 ml, for 1500 mg, the nurse needs to administer 1500/200 = 7.5 times the 5 ml dose. Therefore, 7.5 x 5 ml = 37.5 ml total daily dose. To administer this every 8 hours, divide 37.5 ml by 3 (8 hours intervals in a day) to get 12.5 ml to be administered every 8 hours. Choice A, C, and D are incorrect as they do not reflect the correct calculation of the dose based on the prescription and the available concentration.
2. A nurse is planning care for a client who is at risk for developing deep vein thrombosis (DVT). Which intervention should the nurse include in this client's plan of care?
- A. Maintain the client on bed rest
- B. Apply warm, moist compresses to the legs
- C. Encourage early ambulation
- D. Massage the legs daily
Correct answer: C
Rationale: The correct intervention for a client at risk for developing deep vein thrombosis (DVT) is to encourage early ambulation. Early ambulation helps prevent DVT by promoting circulation, reducing stasis, and preventing blood clot formation. Maintaining the client on bed rest (Choice A) would increase the risk of DVT due to decreased mobility. Applying warm, moist compresses to the legs (Choice B) can be beneficial for other conditions but does not directly prevent DVT. Massaging the legs daily (Choice D) can dislodge a blood clot, leading to serious complications in a client at risk for DVT.
3. The nurse believes that a client who frequently requests pain medication may have a substance abuse problem. Which intervention reflects the nurse's value of client autonomy over veracity?
- A. Administer the prescribed analgesic when requested
- B. Enroll the client in a substance abuse program
- C. Collaborate with the healthcare provider to provide a placebo
- D. Document the frequency of medication requests
Correct answer: A
Rationale: Administering the prescribed analgesic when requested reflects the nurse's value of client autonomy over veracity. This choice respects the client's right to manage their pain as they see fit. Enrolling the client in a substance abuse program (Choice B) assumes substance abuse without evidence and infringes on the client's autonomy. Providing a placebo (Choice C) violates the principle of beneficence and autonomy by deceiving the client. Documenting the frequency of medication requests (Choice D) is important for assessment but does not directly address the client's autonomy in managing their pain.
4. The nurse assesses a client who is receiving an infusion of 5% dextrose in water with 20 mEq of potassium chloride. The client has oliguria and a serum potassium level of 6.5 mEq/L. What action should the nurse implement first?
- A. Notify the healthcare provider of the laboratory results
- B. Decrease the rate of the IV infusion
- C. Stop the infusion
- D. Administer sodium polystyrene sulfonate (Kayexalate)
Correct answer: C
Rationale: The correct action for the nurse to implement first is to stop the infusion. Stopping the infusion is crucial to prevent further potassium from being administered, which can exacerbate the client's hyperkalemia. Notifying the healthcare provider of the laboratory results (Choice A) can be done after taking immediate action to stop the infusion. Decreasing the rate of the IV infusion (Choice B) may not be sufficient to address the high potassium level quickly. Administering sodium polystyrene sulfonate (Kayexalate) (Choice D) is not the initial action for managing hyperkalemia; stopping the potassium infusion takes precedence.
5. The nurse is caring for a client who is receiving a continuous intravenous infusion of heparin. Which laboratory value should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. Hemoglobin level
Correct answer: C
Rationale: The correct answer is C. Partial thromboplastin time (PTT) is the laboratory value that should be monitored to evaluate the effectiveness of heparin therapy. PTT reflects the intrinsic pathway of coagulation and is specifically sensitive to heparin's anticoagulant effects. Monitoring the PTT helps ensure that the client is within the therapeutic range to prevent clot formation without increasing the risk of bleeding. Choices A, B, and D are incorrect because while they are important laboratory values in other contexts, they are not specifically used to monitor the effectiveness of heparin therapy.
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