Correct Answer: C

Rationale: The correct answer is C: Encourage the patient to keep his or her feeding area clean. This is the most appropriate independent nursing action as it promotes hygiene and reduces the risk of infection. Keeping the feeding area clean is essential in preventing complications in a patient with malnutrition. Rationales for why the other choices are incorrect: A: Firmly redirect the patient's head when feeding - This is incorrect because forceful redirection can cause distress and discomfort to the patient, potentially leading to aspiration or choking. B: Administer phenothiazines after each meal as ordered - This is incorrect as phenothiazines are not typically used for malnutrition treatment and should not be administered without a specific indication. D: Apply deep, gentle pressure around the patient's mouth to aid swallowing - This is incorrect because applying pressure around the mouth can pose a choking hazard and should not be done without proper assessment and intervention by a speech therapist or swallowing specialist.

Correct Answer: C

Rationale: The correct answer is C: Clinical decision support system. A clinical decision support system is a type of system or design that helps healthcare professionals, including nurses, in making clinical decisions by providing them with relevant information and knowledge. This system assists in analyzing data to generate patient-specific recommendations or alerts to improve patient care. In the given scenario, the nurse's need to find, evaluate, and use information effectively aligns with the purpose of a clinical decision support system. This system enables the nurse to access evidence-based information, guidelines, and recommendations to enhance their decision-making process and improve patient outcomes. Summary of why other choices are incorrect: A: Computer competency does not equate to informatics competency. While computer skills are important, informatics involves a deeper understanding of using information effectively in practice. B: This choice provides a detailed explanation of informatics but does not directly address the type of system or design the nurse would be using to find, evaluate, and use information effectively. D: Nursing process

Correct Answer: D

Rationale: The correct answer is D: "I need to call the doctor if I see flashing lights." This is because seeing flashing lights after cataract extraction with intraocular lens implant can be a sign of a serious complication like retinal detachment. Prompt reporting is crucial to prevent vision loss. Choice A is incorrect because nausea is not typically a sign of a complication related to cataract surgery. Choice B is also incorrect as a light morning discharge is normal post-surgery unless it's excessive or associated with pain or visual changes. Choice C is incorrect as a scratchy feeling is common after surgery and usually resolves on its own.

Correct Answer: B

Rationale: The correct answer is B: Acute pain related to misplaced endometrial tissue. This nursing diagnosis should be prioritized because endometriosis commonly presents with severe pelvic pain. Managing pain is crucial for the patient's comfort and quality of life. Anxiety (choice A) is not the priority as pain management takes precedence. Ineffective tissue perfusion (choice C) is not a priority unless the patient is actively hemorrhaging. Excess fluid volume (choice D) is not typically associated with endometriosis. Prioritizing pain management will address the immediate and most distressing symptom for the patient.

Correct Answer: B

Rationale: The correct answer is B because the patient's inability to count fingers indicates severe visual impairment. Testing hand motion perception is a more appropriate initial assessment for patients with such significant visual losses. This method can differentiate between light perception and no light perception, providing valuable information about the patient's visual acuity. The other choices are incorrect because assessing vision using a Snellen chart (A) requires more visual acuity than just being able to see hand motion. Performing a detailed examination of external eye structures (C) and palpating periocular regions (D) are not relevant for assessing visual acuity and do not provide information on the patient's ability to perceive hand motion.