Correct Answer: B

Rationale: The correct answer is B: Oliguria. Oliguria (low urine output) is a sign of decreased cardiac output because the kidneys are not receiving enough blood to produce an adequate amount of urine. Shivering (choice A) is a response to hypothermia or the body's attempt to generate heat. Bradypnea (choice C) refers to abnormally slow breathing rate and is not directly related to cardiac output. Constricted pupils (choice D) are more indicative of conditions affecting the nervous system or medications.

Correct Answer: B

Rationale: The correct answer is B because methadone typically causes sedation and respiratory depression, not trouble sleeping. The statement about trouble sleeping indicates a need for further teaching. Choices A, C, and D are incorrect because understanding that methadone slows breathing, avoiding alcohol while taking the medication, and changing positions slowly to prevent dizziness are all appropriate client statements when prescribed methadone.

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: Enalapril, an ACE inhibitor, is commonly prescribed to manage hypertension and heart failure. It helps reduce the workload on the heart and prevent fluid retention. Options A, B, and D are incorrect. Option A focuses on a respiratory rate, which is not specific to heart failure management. Option B suggests administering a large IV bolus of fluid, which can worsen heart failure by increasing fluid volume. Option D addresses the pulse rate, which is not a typical parameter to monitor for heart failure specifically.

Correct Answer: A

Rationale: Placing a daily calendar in the kitchen is essential to help clients with Alzheimer's stay oriented to time and maintain cognitive function. It supports their ability to recall the day, date, and upcoming events, promoting a sense of control over their environment. Choices B, C, and D do not directly target cognitive function support in clients with Alzheimer's disease. While replacing buttoned clothing with zippered items may aid in dressing independently, changing the flooring or introducing variation in the daily routine does not specifically address cognitive function support.