HESI LPN
Adult Health 2 Final Exam
1. The practical nurse is preparing to administer a prescription for cefazolin (Kefzol) 600 mg IM every six hours. The available vial is labeled, 'Cefazolin (Kefzol) 1 gram,' and the instructions for reconstitution state, 'For IM use add 2 ml sterile water for injection. Total volume after reconstitution = 2.5 ml.' When reconstituted, how many milligrams are in each milliliter of solution?
- A. 400 mg/mL
- B. 500 mg/mL
- C. 450 mg/mL
- D. 350 mg/mL
Correct answer: A
Rationale: After reconstitution, the concentration of cefazolin solution is calculated by dividing the total amount of drug (600 mg) by the total volume after reconstitution (2.5 mL). This gives 600 mg / 2.5 mL = 240 mg/mL. However, the question asks for the concentration in each milliliter of solution after reconstitution, so we need to consider the final volume of 2.5 mL. Therefore, 240 mg/mL * 2.5 mL = 600 mg, which means each milliliter contains 240 mg of cefazolin. Therefore, after reconstitution, there are 400 mg of cefazolin in each milliliter of solution. Choices B, C, and D are incorrect as they do not accurately reflect the concentration after reconstitution.
2. The nurse is caring for a client who has just returned from surgery with a urinary catheter in place. What is the most important action to prevent catheter-associated urinary tract infections (CAUTIs)?
- A. Irrigate the catheter daily
- B. Ensure the catheter bag is always below bladder level
- C. Change the catheter every 48 hours
- D. Administer prophylactic antibiotics
Correct answer: B
Rationale: The correct answer is to ensure the catheter bag is always below bladder level. This positioning helps prevent backflow of urine, reducing the risk of CAUTIs. Choice A, irrigating the catheter daily, is not recommended as it can introduce pathogens into the bladder. Changing the catheter too frequently (Choice C) can increase the risk of introducing pathogens. Administering prophylactic antibiotics (Choice D) is not the primary intervention for preventing CAUTIs and can lead to antibiotic resistance.
3. A client has a prescription for enteric-coated (EC) aspirin 325mg PO daily. The medication drawer contains one 325mg aspirin. What action should the nurse take?
- A. Contact the pharmacy and request the prescribed form of aspirin
- B. Instruct the client about the effects of the medication
- C. Administer the aspirin with a full glass of water or a small snack
- D. Withhold the aspirin until consulting with the healthcare provider
Correct answer: A
Rationale: The correct action for the nurse to take is to contact the pharmacy and request the prescribed form of aspirin. Enteric-coated medications are designed to dissolve in the intestine, not the stomach, to avoid irritation. Therefore, it is essential to ensure the client receives the correct form of aspirin as prescribed. Instructing the client about the effects of the medication (choice B) is not necessary at this point as the issue is related to the form of the aspirin. Administering the aspirin with a full glass of water or a small snack (choice C) is not appropriate as it does not address the need for the correct form of the medication. Withholding the aspirin (choice D) without consulting the healthcare provider is not advisable as it may lead to a delay in the client receiving the necessary medication.
4. The nurse is providing preoperative teaching to a client who will undergo a thyroidectomy. What information should the nurse include about postoperative care?
- A. Importance of maintaining neck stability
- B. How to care for the surgical drain
- C. Pain management strategies
- D. All of the above
Correct answer: D
Rationale: Providing preoperative teaching for a client undergoing a thyroidectomy is essential to prepare them for postoperative care. Information about the importance of maintaining neck stability is crucial to prevent complications such as strain on the surgical site. Teaching the client how to care for the surgical drain is important to prevent infections, ensure proper wound healing, and aid in monitoring postoperative recovery. Pain management strategies are vital to ensure the client's comfort and promote optimal recovery. Including all these aspects in preoperative teaching ensures the client is well-prepared for comprehensive postoperative care. Therefore, the correct answer is D because all these elements are essential components of postoperative care for a client undergoing a thyroidectomy. Choices A, B, and C are all important aspects of postoperative care that the nurse should include in the preoperative teaching session.
5. The nurse is assessing a client with chronic liver disease. Which lab value is most concerning?
- A. Elevated AST and ALT levels
- B. Decreased albumin level
- C. Elevated bilirubin level
- D. Prolonged PT/INR
Correct answer: D
Rationale: In a client with chronic liver disease, a prolonged PT/INR is the most concerning lab value. This finding indicates impaired liver function affecting the synthesis of clotting factors, leading to an increased risk of bleeding. Elevated AST and ALT levels (Choice A) indicate liver cell damage but do not directly correlate with the risk of bleeding. A decreased albumin level (Choice B) is common in liver disease but is not the most concerning in terms of bleeding risk. Elevated bilirubin levels (Choice C) are seen in liver disease but do not directly reflect the risk of bleeding as PT/INR values do.
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