Correct Answer: B

Rationale: The correct answer is B: Implement precautions to ensure the patient's safety. When a patient exhibits seizure activity for the first time, the immediate priority is to ensure the patient's safety by implementing precautions such as protecting the patient from injury during the seizure, ensuring a patent airway, and monitoring vital signs. Identifying triggers (Choice A) can be important for long-term management but is not the priority during an acute seizure. Teaching the family about the relationship between brain tumors and seizures (Choice C) can be done later but is not the immediate priority. Ensuring a private room (Choice D) is not the priority when the patient's safety during a seizure is the main concern.

Correct Answer: D

Rationale: The correct answer is D: Duodenum. The duodenum is the first part of the small intestine where most of the digestion and absorption of nutrients occurs. It receives partially digested food from the stomach and mixes it with bile and pancreatic enzymes to break down nutrients. The villi in the duodenum increase the surface area for absorption. The other choices (A: Ileum, B: Cecum, C: Stomach) are incorrect because the ileum and cecum are parts of the small intestine where some absorption occurs but not as much as in the duodenum. The stomach primarily digests food and does not absorb many nutrients.

Correct Answer: B

Rationale: The correct answer is B: Assisting the patient into a sitting position. The Epley maneuver is used to treat benign paroxysmal positional vertigo by repositioning displaced calcium carbonate crystals in the inner ear. This maneuver involves a series of specific head movements. Starting with the patient in a sitting position allows for proper orientation and positioning for subsequent movements to be effective. Placing the patient in a prone position (A) would not facilitate the correct positioning for the maneuver. Instilling warm saline into the ear (C) is not part of the Epley maneuver. Assessing baseline hearing (D) is unrelated to performing the Epley maneuver.

Correct Answer: D

Rationale: The correct answer is D, marginal. Placenta previa is classified based on the proximity of the placental edge to the internal os. In a marginal placenta previa, the placental edge just reaches the internal os. This is a crucial distinction as it poses a higher risk for bleeding during labor. Total placenta previa covers the entire internal os, partial placenta previa partially covers the internal os, and low-lying placenta is when the placenta is close to but not covering the internal os. Therefore, D is correct as it accurately describes the specific position of the placenta edge in relation to the internal os in cases of marginal placenta previa.

Correct Answer: D

Rationale: The correct answer is D: Isolate affected residents from residents who have not developed conjunctivitis. This is the most appropriate action to prevent the spread of viral conjunctivitis in a long-term care facility. By isolating affected residents, the nurse can minimize the risk of transmission to other residents. Choice A is incorrect because prophylactic antibiotics are not effective against viral conjunctivitis. Choice B is also incorrect as normal saline does not treat viral conjunctivitis but may provide comfort. Choice C is unnecessary as viral conjunctivitis is typically diagnosed clinically and does not require culture testing.