HESI RN
HESI Fundamentals Practice Exam
1. How many drops per minute should a client weighing 182 pounds receive if a nurse mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min? The drip factor is 60 gtt/ml.
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To determine the drops per minute for the client, first convert the client's weight from pounds to kilograms: 182/2.2 = 82.73 kg. Calculate the dosage by multiplying 5 mcg by the client's weight in kg: 5 mcg/kg/min × 82.73 kg = 413.65 mcg/min. Find the concentration of the solution in mcg/ml by dividing 250 ml by 50,000 mcg (50 mg): 250 ml/50,000 mcg = 200 mcg/ml. As the client needs 413.65 mcg/min and the solution is 200 mcg/ml, the client should receive 2.07 ml per minute. Finally, using the drip factor of 60 gtt/ml, multiply the ml per minute by the drip factor: 60 gtt/ml × 2.07 ml/min = 124.28 gtt/min, which rounds to 124 gtt/min. Therefore, the client should receive 124 drops per minute. Choice D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate calculation based on the client's weight, dosage, concentration of the solution, and drip factor.
2. The healthcare professional is preparing to administer 10 mL of liquid potassium chloride through a feeding tube, followed by 10 mL of liquid acetaminophen. Which action should the healthcare professional include in this procedure?
- A. Dilute each of the medications with sterile water prior to administration.
- B. Mix the medications in one syringe before opening the feeding tube.
- C. Administer water between the doses of the two liquid medications.
- D. Withdraw any fluid from the tube before instilling each medication.
Correct answer: C
Rationale: To maintain patency and ensure proper medication delivery, water should be instilled into the feeding tube between administering the two medications. This helps prevent clogging of the tube and ensures that both medications are delivered effectively without interference from remnants of the previous medication. Diluting the medications with sterile water before administration (choice A) is unnecessary and may alter the medication concentration. Mixing the medications in one syringe (choice B) could lead to interactions or chemical reactions between the medications. Withdrawing fluid from the tube before instilling each medication (choice D) is not required and may increase the risk of tube displacement or misplacement.
3. The nurse is providing discharge teaching to a client with a new prescription for warfarin (Coumadin). Which dietary instruction should the nurse include?
- A. Avoid foods high in vitamin K
- B. Increase intake of leafy green vegetables
- C. Consume a consistent amount of foods high in potassium
- D. Limit intake of high-protein foods
Correct answer: A
Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.
4. The nurse is administering the 0900 medications to a client who was admitted during the night. Which client statement indicates that the nurse should further assess the medication order?
- A. At home I take my pills at 8:00 am.
- B. It costs a lot of money to buy all of these pills.
- C. I get so tired of taking pills every day.
- D. This is a new pill I have never taken before.
Correct answer: D
Rationale: The client's statement that 'This is a new pill I have never taken before' indicates the need for further assessment by the nurse to ensure the medication is correct and safe. Choices A, B, and C do not raise immediate concerns about the medication order; therefore, they are incorrect. Choice A simply provides information about the client's usual medication schedule, choice B is related to the cost of the pills, and choice C expresses fatigue from taking pills, but none of these statements suggest a potential issue with the new medication.
5. Before administering a client's medication, the nurse assesses a change in the client's condition and decides to withhold the medication until consulting with the healthcare provider. After consultation with the healthcare provider, the dose of the medication is changed, and the nurse administers the newly prescribed dose an hour later than the originally scheduled time. What action should the nurse take in response to this situation?
- A. Notify the charge nurse that a medication error occurred.
- B. Submit a medication variance report to the supervisor.
- C. Document the events that occurred in the nurse's notes.
- D. Discard the original medication administration record.
Correct answer: C
Rationale: In this scenario, the nurse acted appropriately by withholding the medication, consulting with the healthcare provider, and administering the newly prescribed dose, albeit with a delay. The correct course of action for the nurse is to document all these events in the nurse's notes. Documenting the sequence of actions taken is crucial for maintaining an accurate record of the client's care, ensuring transparency, and providing essential information for future reference and continuity of care. Notifying the charge nurse or submitting a medication variance report may not be necessary as the situation was managed appropriately, and discarding the original medication administration record is not recommended as it is part of the client's medical record and should be kept for documentation purposes.
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