HESI LPN
Adult Health 2 Exam 1
1. The nurse is assessing a client who has been receiving total parenteral nutrition (TPN) for several days. Which complication should the nurse monitor for?
- A. Hyperglycemia
- B. Hypoglycemia
- C. Hyponatremia
- D. Hypokalemia
Correct answer: B
Rationale: The correct answer is B: Hypoglycemia. When a client is receiving total parenteral nutrition (TPN) with a high glucose content, the risk of hypoglycemia is significant due to sudden increases in insulin release in response to the glucose load. The nurse should monitor for signs and symptoms of hypoglycemia such as shakiness, sweating, palpitations, and confusion. Hyperglycemia (choice A) is not typically a complication of TPN as the high glucose content is more likely to cause hypoglycemia. Hyponatremia (choice C) and hypokalemia (choice D) are electrolyte imbalances that can occur in clients receiving TPN, but hypoglycemia is the more common and immediate concern that the nurse should monitor for.
2. 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.
3. The nurse is in charge of a Nursing unit in a long-term care facility. Which task is best for the nurse to assign to an unlicensed assistive personnel (UAP) who is helping with the care of several clients?
- A. Measure the amount of a client's residual urine after voiding
- B. Cleanse the perineal area of a client with urinary incontinence
- C. Insert a straight catheter to obtain a urine specimen for culture
- D. Provide catheter care for a client with a suprapubic catheter
Correct answer: B
Rationale: The correct answer is B because cleaning the perineal area is a task within the scope of practice for unlicensed assistive personnel (UAPs) and is crucial for preventing infections. Choice A involves a more complex task that requires a healthcare provider's assessment. Choice C involves a sterile procedure that should be performed by licensed staff. Choice D involves specific care for a client with a catheter that exceeds the UAP's scope of practice.
4. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
5. After morning dressing changes, a male client with paraplegia contaminates his ischial decubiti dressing with diarrheal stool. What is the best activity for the nurse to assign to the unlicensed assistive personnel (UAP)?
- A. Identify the need for additional supplies for an extra dressing change
- B. Provide perianal care and collect clean linens for the dressing change
- C. Document the diarrhea that necessitates an additional dressing change
- D. Position the client for access to the decubiti sites and remove dressings
Correct answer: B
Rationale: The best activity for the nurse to assign to the unlicensed assistive personnel (UAP) in this situation is to provide perianal care and collect clean linens for the dressing change. This task is crucial to maintain proper hygiene, prevent infection, and promote healing in the areas affected by decubiti. Choice A is not the priority as addressing the contamination and ensuring hygiene is more critical. Choice C is not the immediate concern and does not address the current situation. Choice D involves direct client care tasks that should be handled by licensed nursing staff.
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