HESI LPN
Adult Health Exam 1
1. The healthcare provider prescribes erythromycin (Ilosone) 300 mg PO QID. The medication label reads, 'Ilosone 100mg/5mL.' How many mL should the nurse administer at each dose?
- A. 15 mL
- B. 10 mL
- C. 20 mL
- D. 5 mL
Correct answer: A
Rationale: To determine the volume of medication needed for a 300 mg dose of Ilosone (100mg/5mL), we set up a proportion: 100 mg is to 5 mL as 300 mg is to x mL. Cross-multiplying, we get x = (300*5)/100 = 15 mL. Therefore, the nurse should administer 15 mL at each dose. Choice B (10 mL) is incorrect as it does not reflect the correct calculation based on the medication concentration. Choices C (20 mL) and D (5 mL) are also incorrect as they do not accurately calculate the volume required for the prescribed dose.
2. The nurse is caring for a client who is postoperative following a hip replacement. Which intervention is most important to prevent dislocation of the prosthesis?
- A. Keep the client in a low Fowler's position.
- B. Maintain hip abduction with pillows.
- C. Encourage early ambulation.
- D. Place the client in a prone position.
Correct answer: B
Rationale: Maintaining hip abduction with pillows is the most important intervention to prevent dislocation of the hip prosthesis postoperatively. This position helps keep the hip joint stable and prevents excessive internal rotation, which can lead to dislocation. Keeping the client in a low Fowler's position (Choice A) does not provide the necessary support and stability for the hip joint. While early ambulation (Choice C) is important for preventing complications such as blood clots and promoting circulation, it is not the most crucial intervention for preventing dislocation. Placing the client in a prone position (Choice D) can be harmful and increase the risk of dislocation.
3. A client is admitted with Atrial Fibrillation and is administered amiodarone (Cordarone). What therapeutic response should the nurse anticipate?
- A. Conversion of irregular heart rate to regular heart rhythm
- B. Pulse oximetry readings within normal range during activity
- C. Peripheral pulse points with adequate capillary refill
- D. Increase in exercise tolerance without shortness of breath
Correct answer: A
Rationale: The correct answer is A: Conversion of irregular heart rate to regular heart rhythm. Amiodarone is a medication commonly used to restore and maintain normal heart rhythm in clients with atrial fibrillation. It works by slowing down the electrical signals in the heart, helping to regulate the heartbeat. Choices B, C, and D are incorrect because they do not directly relate to the therapeutic response expected from administering amiodarone in a client with atrial fibrillation. Pulse oximetry readings, peripheral pulses, capillary refill, and exercise tolerance are important assessments but are not the primary therapeutic goal of using amiodarone in this situation.
4. The nurse is teaching a client about the administration of a subcutaneous injection. Which site is most appropriate for this type of injection?
- A. Deltoid muscle
- B. Dorsogluteal muscle
- C. Ventrogluteal muscle
- D. Abdomen
Correct answer: D
Rationale: The abdomen is a common site for subcutaneous injections due to its accessibility and ample subcutaneous tissue. Subcutaneous injections are typically given in areas with a layer of fat between the skin and muscle, such as the abdomen, to allow for slow and consistent absorption of the medication. The deltoid muscle is more appropriate for intramuscular injections, not subcutaneous. The dorsogluteal muscle and ventrogluteal muscle are also more suited for intramuscular injections, not subcutaneous.
5. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which dietary instruction should the nurse provide?
- A. Increase intake of green leafy vegetables
- B. Avoid foods high in vitamin K
- C. Increase intake of foods rich in vitamin C
- D. Limit intake of dairy products
Correct answer: B
Rationale: The correct answer is B: 'Avoid foods high in vitamin K.' Vitamin K can decrease the effectiveness of warfarin, so it is essential for clients on warfarin therapy to avoid foods high in vitamin K. Green leafy vegetables are high in vitamin K, so choice A is incorrect. Choices C and D are unrelated to the dietary restrictions needed for clients taking warfarin and are therefore incorrect.
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