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. What intervention has the highest priority for a client with a fourth-degree midline laceration following the vaginal delivery of an 8-pound 10-ounce infant?
- A. Administer a prescribed stool softener
- B. Administer prescribed PRN sleep medications
- C. Encourage breastfeeding to promote uterine involution
- D. Encourage the use of prescribed analgesic perineal sprays
Correct answer: A
Rationale: Administering a prescribed stool softener is the highest priority intervention for a client with a fourth-degree midline laceration to prevent straining during bowel movements, which could potentially harm the healing laceration. Stool softeners help in maintaining soft stools, reducing the risk of injury to the suture line. Administering PRN sleep medications, encouraging breastfeeding, or promoting the use of analgesic perineal sprays are important aspects of care but are not the priority in this situation. Stool softeners play a crucial role in preventing complications and promoting healing in such cases, making it the most urgent intervention.
3. The nurse observes a client with new-onset tachycardia. What should the nurse do first?
- A. Check for the client's temperature
- B. Administer prescribed beta-blockers
- C. Assess for any chest pain or discomfort
- D. Monitor the client's blood pressure
Correct answer: C
Rationale: When a client presents with new-onset tachycardia, the first action the nurse should take is to assess for any associated symptoms like chest pain or discomfort. This is important to differentiate the potential causes of tachycardia and guide appropriate interventions. Checking the client's temperature (Choice A) may be relevant in certain situations but is not the priority when tachycardia is observed. Administering prescribed beta-blockers (Choice B) should only be done after a comprehensive assessment and healthcare provider's orders. Monitoring the client's blood pressure (Choice D) is important, but assessing for chest pain or discomfort takes precedence in this scenario to rule out cardiac causes of tachycardia.
4. A client with a diagnosis of myocardial infarction (MI) is prescribed nitroglycerin. What is the primary action of this medication?
- A. Increases heart rate
- B. Lowers blood pressure
- C. Dilates coronary arteries
- D. Reduces myocardial oxygen demand
Correct answer: C
Rationale: The correct answer is C: Nitroglycerin dilates coronary arteries, improving blood flow to the heart muscle. This helps increase oxygen supply to the heart tissue. Option A, 'Increases heart rate,' is incorrect because nitroglycerin does not directly affect heart rate. Option B, 'Lowers blood pressure,' is also incorrect as while nitroglycerin can lower blood pressure, its primary action in the context of MI is related to coronary artery dilation. Option D, 'Reduces myocardial oxygen demand,' is not the primary action of nitroglycerin in the treatment of myocardial infarction; its main action is to increase oxygen supply by dilating coronary arteries.
5. A healthcare provider is reviewing a client's medication list during a routine visit. Which action is most important to ensure medication safety?
- A. Ask the client about any allergies to medications
- B. Review the purposes of each medication
- C. Check for potential drug interactions
- D. All of the above
Correct answer: D
Rationale: A comprehensive review of allergies, medication purposes, and potential interactions is crucial for ensuring medication safety. Asking about allergies helps prevent adverse reactions, reviewing medication purposes ensures the correct use of each drug, and checking for potential drug interactions reduces the risk of harmful effects when medications interact. Choosing 'All of the above' is the correct answer because all three actions are essential steps to enhance medication safety. Options A, B, and C individually play vital roles in promoting medication safety, making option D the most appropriate choice.
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