HESI LPN
Adult Health 2 Exam 1
1. 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.
2. The nurse is caring for a client with increased intracranial pressure (ICP). Which position should the nurse avoid?
- A. Keeping the head of the bed elevated at 30 degrees
- B. Positioning the client in the prone position
- C. Placing the client in a lateral recumbent position
- D. Elevating the client's legs
Correct answer: B
Rationale: The correct answer is B: Positioning the client in the prone position. Placing the client in the prone position should be avoided in a client with increased intracranial pressure (ICP) as it can further raise ICP. The prone position can hinder venous return and increase pressure within the cranial vault, potentially worsening the client's condition. Keeping the head of the bed elevated at 30 degrees helps promote venous drainage and reduce ICP. Placing the client in a lateral recumbent position can also assist in reducing ICP by optimizing cerebral perfusion. Elevating the client's legs can help improve venous return and maintain adequate cerebral blood flow, making it a suitable positioning intervention for managing increased ICP.
3. The client with chronic kidney disease (CKD) is being educated about dietary modifications. Which dietary restriction should the nurse emphasize the most?
- A. Limit intake of high-fiber foods
- B. Restrict protein intake
- C. Avoid dairy products
- D. Increase fluid intake
Correct answer: B
Rationale: The most crucial dietary restriction to emphasize for a client with chronic kidney disease (CKD) is to restrict protein intake. By restricting protein intake, the workload on the kidneys is reduced, which helps slow the progression of CKD. While high-fiber foods are generally beneficial, they may need to be limited in some individuals with CKD due to potassium concerns, making choice A less critical. Avoiding dairy products may be necessary in some cases to control phosphorus levels, but it is not as vital as restricting protein intake. Increasing fluid intake is essential for kidney health, but it is not the most critical dietary modification for clients with CKD.
4. A client is admitted with Atrial Fibrillation and is administered amiodarone (Cordarone). What therapeutic response should the nurse anticipate?
- A. Conversion of irregular heart rate to regular heart rhythm
- B. Pulse oximetry readings within normal range during activity
- C. Peripheral pulse points with adequate capillary refill
- D. Increase in exercise tolerance without shortness of breath
Correct answer: A
Rationale: The correct answer is A: Conversion of irregular heart rate to regular heart rhythm. Amiodarone is a medication commonly used to restore and maintain normal heart rhythm in clients with atrial fibrillation. It works by slowing down the electrical signals in the heart, helping to regulate the heartbeat. Choices B, C, and D are incorrect because they do not directly relate to the therapeutic response expected from administering amiodarone in a client with atrial fibrillation. Pulse oximetry readings, peripheral pulses, capillary refill, and exercise tolerance are important assessments but are not the primary therapeutic goal of using amiodarone in this situation.
5. 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.
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