Correct Answer: D

Rationale: Compressing the bulb with the tab open creates suction, which helps increase drainage into the JP drain. This action can aid in removing accumulated fluids from the surgical site. Reinforcing the incisional dressings and assessing behind the neck for drainage (Choice A) is not directly related to increasing drainage into the JP. Placing the client in a right lateral side-lying position and elevating the head of the bed (Choice B) may not directly impact drainage into the JP drain. Irrigating the JP tubing with 1 ml NSS and then closing the opening with its tab (Choice C) is unnecessary and could introduce contaminants into the drain.

Correct Answer: D

Rationale: The most important instruction for the nurse to include in the discharge teaching for a client with COPD receiving home oxygen therapy is to ensure the oxygen tank is stored in a secure upright position. This is crucial to prevent accidents such as leaks or falls that can lead to serious injury or damage. Choice A is incorrect as increasing the oxygen flow rate during physical activity without a healthcare provider's guidance can be harmful. Choice B is incorrect as smoking near an oxygen source can cause a fire hazard. Choice C is incorrect as petroleum jelly is flammable and should not be used around oxygen due to the risk of combustion.

Correct Answer: B

Rationale: The correct answer is B: Activated partial thromboplastin time (aPTT). This test is used to monitor the effectiveness of heparin therapy. A complete blood count (CBC) (choice A) is not specific for monitoring heparin therapy. Prothrombin time (PT) (choice C) and International normalized ratio (INR) (choice D) are more commonly used to monitor warfarin therapy, not heparin.

Correct Answer: D

Rationale: Administering an antipyretic is the most important intervention. The client presents with an elevated temperature, tachycardia, and tachypnea, indicating a fever. Lowering the temperature with an antipyretic is crucial to prevent complications like dehydration, altered mental status, and increased oxygen demand. While assessing lower extremity circulation and oxygen saturation are important, addressing the elevated temperature takes priority in this scenario. Incentive spirometry may be beneficial but is not the priority compared to managing the fever.

Correct Answer: D

Rationale: The correct answer is D. In hypertrophic pyloric stenosis, a key assessment finding is an olive-shaped mass in the right upper quadrant of the abdomen, to the right of the midline. This mass is palpable and represents the hypertrophied pyloric muscle. Choices A, B, and C are incorrect because although they may be present in infants with feeding problems, the definitive assessment for hypertrophic pyloric stenosis is the presence of an olive-shaped mass on the right side of the abdomen, not a history of diarrhea, gastric pain, or poor appetite.