Correct Answer: A

Rationale: Corrected Rationale: Using a pain rating scale is the most appropriate method to assess a patient's pain level post-surgery. Pain rating scales provide a standardized way for patients to communicate their pain intensity, allowing for accurate assessment and effective pain management. Checking vital signs (choice B) is important for monitoring a patient's overall health status but may not directly reflect their pain level. Observing for non-verbal cues (choice C) is valuable, but it may not always provide a clear indication of the pain intensity. Checking for abnormal breath sounds (choice D) is relevant for assessing respiratory status but does not directly evaluate the patient's pain level.

Correct Answer: A

Rationale: The correct answer is to monitor INR levels. INR levels are the most critical indicator for monitoring bleeding risk in patients on warfarin. INR stands for International Normalized Ratio and specifically measures the clotting tendency of the blood. Monitoring hemoglobin levels, potassium levels, or platelet count are not as directly relevant to assessing bleeding risk in patients on warfarin.

Correct Answer: A

Rationale: Administering oxygen is the best intervention for a patient experiencing respiratory distress because it helps improve oxygenation. Oxygen therapy is the initial and priority intervention to ensure an adequate oxygen supply to the body tissues. Administering bronchodilators (Choice B) may be appropriate for specific respiratory conditions like asthma or COPD but is not the first-line intervention in all cases of respiratory distress. Administering IV fluids (Choice C) is not a standard intervention for respiratory distress unless there is an underlying cause like dehydration. Repositioning the patient (Choice D) can aid in optimizing ventilation but is not the primary intervention for respiratory distress.

Correct Answer: D

Rationale: The correct answer is D. An INR of 2.0 is within the therapeutic range for clients receiving warfarin. It is crucial to report this finding to the provider before surgery to ensure appropriate management and potential adjustments to prevent excessive bleeding risks. Choices A, B, and C are within normal limits and do not directly impact the client's surgery preparation or risk for bleeding, so they do not require immediate reporting.

Correct Answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.