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 รท 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 with a diagnosis of heart failure is receiving furosemide (Lasix). Which electrolyte imbalance should the nurse monitor for?
- A. Hyperkalemia.
- B. Hyponatremia.
- C. Hypocalcemia.
- D. Hypokalemia.
Correct answer: D
Rationale: The correct answer is D: Hypokalemia. Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Therefore, the nurse should monitor the client for low potassium levels. Choice A, Hyperkalemia, is incorrect as furosemide does not typically cause high potassium levels. Choice B, Hyponatremia, is incorrect as furosemide primarily affects potassium levels, not sodium. Choice C, Hypocalcemia, is incorrect as furosemide does not directly impact calcium levels.
3. The nurse is preparing to administer a tuberculin skin test (TST). Which area of the body is the preferred site for this injection?
- A. Deltoid muscle
- B. Inner forearm
- C. Abdomen
- D. Thigh
Correct answer: B
Rationale: The inner forearm is the preferred site for administering a tuberculin skin test (TST) due to its easy accessibility, minimal hair interference, and good visibility of the injection site, allowing for accurate interpretation of the test results. The deltoid muscle, abdomen, and thigh are not preferred sites for a TST as they may not provide the optimal conditions required for the test. The deltoid muscle is commonly used for intramuscular injections, the abdomen may have varying subcutaneous fat thickness affecting the test, and the thigh may not provide the necessary visibility for accurate reading.
4. A client with heart failure is prescribed a low-sodium diet. The nurse notices the client's meal tray contains high-sodium foods. What action should the nurse take?
- A. Educate the client about the importance of a low-sodium diet
- B. Replace the meal with a low-sodium option
- C. Report the error to the dietary department
- D. Encourage the client to avoid eating the high-sodium foods
Correct answer: B
Rationale: The correct action for the nurse to take in this situation is to replace the high-sodium meal with a low-sodium option. This immediate intervention ensures that the client adheres to the prescribed low-sodium diet, crucial for managing heart failure and preventing fluid retention. Educating the client (Choice A) about the diet is important but not as urgent as ensuring they receive the correct meal. Reporting the error to the dietary department (Choice C) can be done after addressing the immediate issue. Encouraging the client to avoid high-sodium foods (Choice D) is not as effective as replacing the current meal with a suitable alternative.
5. The nurse is assessing a client with an IV infusion of normal saline. The client reports pain and swelling at the IV site. What should the nurse do first?
- A. Slow the rate of infusion
- B. Apply a warm compress to the site
- C. Elevate the affected arm
- D. Discontinue the IV infusion
Correct answer: D
Rationale: The correct answer is to discontinue the IV infusion. Pain and swelling at the IV site may indicate infiltration or phlebitis, which requires immediate discontinuation of the infusion to prevent further complications. Continuing the infusion can lead to tissue damage or infection. Slowing the rate of infusion, applying a warm compress, or elevating the affected arm would not address the underlying issue of infiltration or phlebitis and could potentially worsen the condition by allowing more fluid to infiltrate the tissues.
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