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. When providing care for a client receiving palliative care for terminal cancer, what should the nurse prioritize?
- A. Pain management
- B. Arranging family visits
- C. Discussing advance directives
- D. Providing nutritional support
Correct answer: A
Rationale: When caring for a client receiving palliative care for terminal cancer, the nurse should prioritize pain management. Effective pain management is crucial in enhancing the quality of life for terminally ill patients. While arranging family visits and discussing advance directives are important aspects of care, pain management takes precedence in providing comfort and alleviating suffering. Nutritional support is essential but may be of lesser priority compared to pain management in this context.
3. A client with a diagnosis of tuberculosis (TB) is being discharged home. Which instruction is most important for the nurse to provide?
- A. Avoid close contact with others until treatment is complete.
- B. Take all prescribed medications as directed.
- C. Schedule a follow-up appointment with the healthcare provider.
- D. Wear a mask when in public places.
Correct answer: B
Rationale: The most important instruction for a client with tuberculosis (TB) is to take all prescribed medications as directed. This is crucial to prevent the development of drug-resistant TB. While avoiding close contact with others until treatment is complete (Choice A) is important to prevent the spread of TB, ensuring the client completes the prescribed medication regimen is the priority. Scheduling a follow-up appointment (Choice C) is important for monitoring but not as critical as medication adherence. Wearing a mask in public places (Choice D) can help reduce the spread of TB but is not as essential as taking medications as prescribed.
4. The nurse is assessing a client with a suspected pulmonary embolism (PE). Which symptom is most indicative of this condition?
- A. Bilateral leg swelling.
- B. Sudden onset of chest pain.
- C. Gradual onset of dyspnea.
- D. Decreased breath sounds on auscultation.
Correct answer: C
Rationale: The correct answer is C: 'Gradual onset of dyspnea.' While pulmonary embolism can present with various symptoms, the most common include sudden onset of dyspnea, chest pain (often pleuritic in nature), tachypnea, and tachycardia. Bilateral leg swelling is more commonly associated with conditions like deep vein thrombosis, not pulmonary embolism. Decreased breath sounds on auscultation may be seen in conditions like pneumothorax, not typically in pulmonary embolism. Therefore, the gradual onset of dyspnea is the most indicative symptom of pulmonary embolism in this scenario.
5. The nurse is monitoring a client with an IV infusion in the left antecubital fossa. The site is warm, red, and without swelling. What conclusion should the nurse draw from these findings?
- A. The IV fluids are infusing into the subcutaneous tissues
- B. The infusion pump is functioning properly
- C. The insertion date should be verified and the IV discontinued
- D. The site is inflamed and should be reported
Correct answer: B
Rationale: The correct answer is B. Warmth and redness at the IV site without swelling indicate a localized reaction, which is common and does not necessarily indicate infiltration of IV fluids into the subcutaneous tissues. The absence of swelling suggests that the IV is correctly placed. Therefore, the nurse should conclude that the infusion pump is functioning properly. Choice A is incorrect as warmth and redness alone do not indicate subcutaneous infiltration. Choice C is incorrect as discontinuing the IV solely based on warmth and redness without swelling is not necessary. Choice D is incorrect as the absence of swelling signifies a localized reaction rather than inflammation requiring immediate reporting.
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