Correct Answer: C

Rationale: Instructing a patient about incentive spirometry falls under the implementation phase of the nursing process. During this phase, nursing interventions are put into action. Assessment (choice A) involves collecting data about the patient's condition, planning (choice B) involves setting goals and creating a care plan, and evaluation (choice D) involves assessing the outcomes of nursing interventions. Therefore, the correct answer is C, as it reflects the active teaching and intervention part of the process.

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: D

Rationale: The correct answer is D: Drink hot water with lemon juice each morning. Drinking hot water with lemon juice can help stimulate bowel movements, making it a natural and safe recommendation for pregnant clients experiencing constipation. Choice A is incorrect because reducing vitamin and supplement intake may not directly address constipation. Choice B, eating 15 g of fiber per day, could be helpful but may not be as effective as the correct answer for immediate relief. Choice C, consuming 48 ounces of water daily, is essential for overall health but may not be as directly effective as the correct answer in alleviating constipation.

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: B

Rationale: The Partial Thromboplastin Time (PTT) is the correct laboratory value to monitor heparin therapy. PTT measures the time it takes for blood to clot and is specifically used to evaluate the effectiveness of anticoagulation therapy such as heparin. Monitoring the PTT helps ensure that the heparin dose is within the therapeutic range. Platelet count, Prothrombin time (PT), and Bleeding time are not specific laboratory values for monitoring the therapeutic effect of heparin therapy. Platelet count is more indicative of platelet function, PT is used to monitor warfarin therapy, and Bleeding time assesses platelet function rather than the effect of heparin therapy.