Correct Answer: B

Rationale: The correct first action for a client with an NG tube experiencing nausea and decreased gastric secretions is to irrigate the NG tube with sterile water. This can help clear any blockages in the tube, which may be causing the symptoms. Positioning the client on their left side may be helpful for enteral feedings but is not the priority in this situation. Replacing the NG tube should not be the initial step unless irrigation fails to resolve the issue. Increasing the suction setting without attempting to clear the blockage can be harmful to the client.

Correct Answer: B

Rationale: Encouraging the client to gradually resume self-care tasks with frequent rest periods is the best strategy to promote independence. This approach helps the client regain confidence and autonomy in performing self-care activities. Instructing the client to rest until fully recovered (Choice A) may lead to decreased muscle strength and independence. Assigning assistive personnel (Choice C) does not empower the client to actively participate in their care. Involving the client's family (Choice D) may provide support but does not directly encourage the client's independence.

Correct Answer: A

Rationale: A below-the-knee amputation requires immediate attention due to the risk of hemorrhage and shock, making it the highest priority. This type of injury can lead to significant blood loss and impaired perfusion, which can be life-threatening if not addressed promptly. While a 10 cm laceration, a fractured tibia, and a 95% full-thickness body burn are serious injuries requiring urgent care, they do not pose the same immediate threat to life as a below-the-knee amputation. The laceration may require suturing to control bleeding and prevent infection, the fractured tibia needs stabilization to prevent further damage and pain, and the burn necessitates immediate management to prevent complications, but they are not as acutely life-threatening as the amputation.

Correct Answer: B

Rationale: The correct answer is to instruct the client not to get out of bed. Lorazepam is a sedative that can cause drowsiness and impair coordination. By instructing the client not to get out of bed, the nurse helps prevent falls or injuries that could occur due to the medication's sedative effects. Choice A is incorrect as keeping the client awake may not be necessary and could lead to unnecessary discomfort. Choice C is incorrect as encouraging the client to drink fluids is not directly related to the administration of lorazepam. Choice D is incorrect as early ambulation is not safe immediately after administering a sedative medication.

Correct Answer: A

Rationale: The correct answer is A: Sepsis and respiratory failure. Untreated pneumonia can lead to severe complications such as sepsis, which is a life-threatening response to infection, and respiratory failure, where the lungs can no longer provide enough oxygen to the body. Heart failure and kidney failure (choice B) are not direct complications of untreated pneumonia. Pulmonary embolism and electrolyte imbalance (choice C) are also not commonly associated with untreated pneumonia. Liver failure and electrolyte imbalance (choice D) are not typical complications of pneumonia.