HESI LPN
Adult Health Exam 1 Chamberlain
1. A 9-year-old is receiving vancomycin 400 mg IV every 6 hours for a methicillin-resistant (Beta-lactam-resistant) Staphylococci aureus (MRSA) infection. The medication is diluted in a 100 mL bag of saline with instructions to infuse over one and a half hours. How many mL/hour should the nurse program the infusion pump?
- A. 50
- B. 67
- C. 57
- D. 70
Correct answer: B
Rationale: To calculate the infusion rate for vancomycin, you need to divide the total volume by the total time of infusion. In this case, the total volume is 100 mL, and the total time is 1.5 hours. Therefore, 100 mL ÷ 1.5 hours = 67 mL/hour. This means the nurse should program the infusion pump to deliver vancomycin at a rate of 67 mL/hour. Choice A (50) is incorrect as it does not reflect the correct calculation. Choice C (57) is incorrect as it is not the accurate calculation based on the provided information. Choice D (70) is incorrect as it does not correspond to the correct infusion rate calculation.
2. A client is prescribed warfarin for the prevention of thromboembolism. What dietary instruction should the nurse provide?
- A. Increase intake of green leafy vegetables
- B. Maintain a consistent intake of vitamin K-rich foods
- C. Avoid all foods containing vitamin K
- D. Consume a high-protein diet
Correct answer: B
Rationale: The correct answer is B. Maintaining a consistent intake of vitamin K-rich foods is important for patients taking warfarin as it helps keep the effects of the medication stable. Choice A is incorrect because while green leafy vegetables are high in vitamin K, they should not be avoided completely but rather consumed consistently. Choice C is also incorrect as avoiding all foods containing vitamin K can lead to fluctuations in warfarin's effectiveness. Choice D is incorrect as a high-protein diet is not specifically recommended for patients taking warfarin.
3. The nurse is monitoring a client's intravenous infusion and observes that the venipuncture site is cool to the touch, swollen, and the infusion rate is slower than the prescribed rate. What is the most likely cause of this finding?
- A. The solution's rate is too rapid
- B. The client has phlebitis
- C. The infusion site is infected
- D. The infusion is infiltrated
Correct answer: D
Rationale: The correct answer is D. An infiltrated IV occurs when fluid leaks into the surrounding tissue, causing coolness, swelling, and a slow infusion rate. Choice A is incorrect because a rapid solution rate does not typically cause these specific symptoms. Choice B, phlebitis, presents with redness, warmth, and tenderness along the vein, not coolness. Choice C, infection, usually manifests with redness, warmth, and possibly purulent drainage, not coolness and swelling.
4. A client presents to the emergency department with symptoms of a myocardial infarction. What should the nurse administer immediately under doctor's orders?
- A. Aspirin to prevent further blood clotting
- B. High-flow oxygen
- C. Intravenous fluids
- D. Nitroglycerin
Correct answer: A
Rationale: The correct answer is A: Aspirin to prevent further blood clotting. Administering aspirin is crucial in the immediate management of a myocardial infarction as it helps prevent further blood clot formation, which is a key component in the treatment and prevention of myocardial infarction. Oxygen therapy (Choice B) is often provided, but aspirin takes precedence due to its role in reducing clot formation. Intravenous fluids (Choice C) may be needed but are not the immediate priority in this situation. Nitroglycerin (Choice D) is commonly used for chest pain relief in myocardial infarction but is not the first medication to be administered in this scenario.
5. The nurse is assessing an older resident with a history of Benign Prostatic Hypertrophy and identifies a distended bladder. What should the nurse do?
- A. Stand the client to void and run tap water within hearing distance before catheterizing
- B. Straight catheterize and if the residual urine volume is greater than 100 mL, clamp catheter
- C. Catheterize q2h and place in an indwelling catheter at the end of the prescribed 24hr period
- D. Catheterize with an indwelling catheter and if the residual volume is greater than 100 mL, inflate the balloon
Correct answer: D
Rationale: Prompt and appropriate management of urinary retention prevents complications like infection and bladder damage.
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