Correct Answer: C

Rationale: Elevating the head of the bed to 45 degrees during feedings is the correct intervention to prevent aspiration in clients with a nasogastric tube. This position helps reduce the risk of regurgitation and subsequent aspiration of stomach contents into the lungs. Flushing the tube with water before feedings (Choice A) is not necessary for preventing aspiration. Checking for gastric residuals (Choice B) helps monitor feeding tolerance but does not directly prevent aspiration. Placing the client in the left lateral position (Choice D) is not specifically indicated for preventing aspiration in a client with a nasogastric tube.

Correct Answer: B

Rationale: The correct answer is B: 'Place the client in airborne isolation.' Tuberculosis is an airborne disease transmitted through droplet nuclei. Placing the client in airborne isolation helps prevent the spread of the disease to others. Choice A, placing the client in droplet isolation, is incorrect because tuberculosis is not transmitted through large droplets. Choice C, wearing a surgical mask when providing care to the client, is not sufficient as airborne precautions are necessary. Choice D, keeping the client's door closed at all times, does not directly address the prevention of disease transmission in this case.

Correct Answer: C

Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.

Correct Answer: D

Rationale: The correct answer is to trim toenails straight across. This instruction is crucial for clients with diabetes to prevent ingrown toenails, which can lead to infection. Soaking feet in warm water daily can increase the risk of skin breakdown. Cotton socks are recommended, but the priority in foot care for diabetes is proper nail trimming. Using a heating pad can also pose a burn risk for individuals with reduced sensation in their feet.

Correct Answer: A

Rationale: Corrected Rationale: Daily weight monitoring is crucial in managing patients with chronic heart failure as it helps assess fluid balance. Monitoring daily weight allows healthcare providers to detect any sudden weight gain, which could indicate fluid retention and worsening heart failure. This intervention helps in adjusting treatment plans promptly. Providing fluid restriction (Choice B) can be a part of managing heart failure but is not the primary intervention mentioned in the question. Administering diuretics (Choice C) is a treatment modality for heart failure but does not encompass the comprehensive approach to patient management. Monitoring intake and output (Choice D) is important but does not specifically address the direct assessment of fluid status as daily weight monitoring does.