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 mother of an 8-year-old boy tells the nurse that he fell out of a tree and hurt his arm and shoulder. Which assessment finding is the most significant indicator of possible child abuse?
- A. The child looks at the floor when answering the nurse's questions
- B. The mother's version of the injury is different from the child's version
- C. The child has several abrasions on the chest and legs
- D. The mother refuses to answer questions about family history
Correct answer: B
Rationale: In cases of possible child abuse, discrepancies between the accounts given by the child and the parent are critical indicators. This inconsistency could suggest that the injury was not accidental and may be a result of abuse. Looking at the floor while answering questions or having abrasions on the body can be concerning but are not as direct indicators of abuse as conflicting stories between the child and the parent.
3. The nurse is caring for a client with an intravenous infusion of normal saline. The client reports pain and swelling at the IV site. What is the nurse’s priority action?
- A. Slow the rate of infusion
- B. Apply a warm compress to the site
- C. Discontinue the IV infusion
- D. Elevate the affected arm
Correct answer: C
Rationale: The correct answer is to discontinue the IV infusion (Choice C). Pain and swelling at the IV site can indicate infiltration or phlebitis, which are serious complications that require immediate action. Slowing the rate of infusion (Choice A) may not address the underlying issue and can potentially worsen the condition. Applying a warm compress (Choice B) may provide temporary relief but does not address the need to discontinue the infusion. Elevating the affected arm (Choice D) is not the priority in this situation; discontinuing the infusion takes precedence to prevent further harm.
4. The nurse is caring for a client with chronic obstructive pulmonary disease (COPD) who is experiencing shortness of breath. What is the priority nursing intervention?
- A. Administer bronchodilator therapy as prescribed.
- B. Inhale the medication slowly while pressing down on the inhaler.
- C. Position the client in a high-Fowler's position.
- D. Increase the oxygen flow rate.
Correct answer: C
Rationale: The priority nursing intervention for a client with COPD experiencing shortness of breath is to position the client in a high-Fowler's position. This position helps improve lung expansion and ease breathing by maximizing chest expansion and allowing for better airflow. While administering bronchodilator therapy is important, positioning the client for improved breathing takes priority. Inhaling the medication slowly and pressing down on the inhaler is a correct technique for inhaler use but not the priority intervention. Increasing the oxygen flow rate may be needed, but adjusting the client's position to a high-Fowler's position is the priority to address the shortness of breath in COPD.
5. The nurse is assessing a client with cirrhosis who has developed ascites. What is the most important intervention to include in the care plan?
- A. Restrict sodium intake
- B. Encourage high-protein meals
- C. Increase fluid intake
- D. Administer diuretics as prescribed
Correct answer: D
Rationale: The correct answer is to administer diuretics as prescribed. Diuretics are often prescribed to help manage fluid accumulation in ascites, which is a common complication of cirrhosis. Restricting sodium intake (Choice A) is essential in managing ascites, but administering diuretics takes precedence in the care plan. Encouraging high-protein meals (Choice B) and increasing fluid intake (Choice C) are not the primary interventions for managing ascites in cirrhosis.
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