Correct Answer: B

Rationale: The correct answer is B: International normalized ratio (INR). The INR is used to monitor the effectiveness of warfarin therapy. A higher INR indicates a longer time it takes for the blood to clot, which is desirable in patients receiving warfarin to prevent blood clots. Platelet count (Choice A) assesses the number of platelets in the blood and is not directly related to warfarin therapy. Bleeding time (Choice C) evaluates the time it takes for a person to stop bleeding after a standardized wound, but it is not specific to monitoring warfarin effectiveness. Partial thromboplastin time (PTT) (Choice D) is more commonly used to monitor heparin therapy, not warfarin.

Correct Answer: C

Rationale: The correct answer is C: 'Meat and dairy products are eaten separately.' In kosher dietary practices, it is essential to keep meat and dairy products separate. Mixing meat and dairy is prohibited, and there are specific guidelines for the preparation and consumption of each. Choices A, B, and D are incorrect. Choice A is wrong because leavened bread is not eaten during Passover in kosher practices. Choice B is incorrect as shellfish is not consumed in a kosher diet. Choice D is also inaccurate as fasting from meat does not occur during Hanukkah in kosher dietary practices.

Correct Answer: A

Rationale: Using a designated stethoscope is the correct action when caring for a toddler diagnosed with RSV. This measure helps prevent the spread of infection to other clients by reducing the risk of contamination. Wearing an N95 respirator mask is not necessary for routine care of a toddler with RSV unless performing aerosol-generating procedures. Removing the disposable gown after leaving the toddler's room is important for infection control but not specific to RSV care. Placing the toddler in a room with negative air pressure is not a standard practice for managing RSV in toddlers.

Correct Answer: A

Rationale: A GFR of 14 mL/min indicates significant kidney damage and a severe decrease in kidney function. This level of GFR typically indicates the need for hemodialysis to help the kidneys perform their function adequately. BUN, serum magnesium, and serum phosphorus levels are important in assessing kidney function and managing chronic kidney disease but do not specifically indicate the need for hemodialysis. Therefore, choices B, C, and D are incorrect.

Correct Answer: B

Rationale: The correct answer is to advise the client to drink 2-3 liters of water per day. Adequate hydration helps flush bacteria from the urinary tract, reducing the risk of UTIs. Choice A is incorrect because wiping from front to back is the appropriate technique to prevent the spread of bacteria from the rectal area to the urethra. Choice C is incorrect as holding urine for long periods can contribute to UTIs by allowing bacteria to grow in the bladder. Choice D is incorrect as wearing loose-fitting underwear is recommended to allow air circulation and prevent moisture buildup, reducing the risk of UTIs.