Correct Answer: A

Rationale: The correct answer is to avoid NSAIDs after cataract surgery to reduce the risk of bleeding. Choice B, wearing dark glasses when outdoors, is generally recommended after cataract surgery to protect the eyes from bright sunlight, but it is not the most critical instruction. Choice C, reporting green or yellow drainage immediately, is important to monitor for signs of infection, but it is not specific to cataract surgery. Choice D, itching is normal unless accompanied by pain and nausea, is not the most crucial advice post-cataract surgery. Therefore, the key instruction is to avoid NSAIDs to minimize bleeding risk.

Correct Answer: A

Rationale: Flattened T waves are a characteristic sign of hypokalemia on an ECG. When potassium levels are low, it can lead to changes in the ECG, such as T wave flattening. This alteration is important to recognize as it indicates potential electrolyte imbalances. ST elevation (Choice B) is not typically associated with hypokalemia but can be seen in conditions like myocardial infarction. Prominent U waves (Choice C) are associated with hypokalemia, but flattened T waves are more specific. Widened QRS complex (Choice D) is not a typical ECG finding in hypokalemia but can be seen in conditions like hyperkalemia.

Correct Answer: A

Rationale: The correct answer is A: S3 heart sound, fatigue. Radiation after a mastectomy can lead to fatigue and symptoms of heart failure, such as the presence of an S3 heart sound. Choices B, C, and D are incorrect. Pulselessness in the affected extremity would be more relevant to vascular complications, shortness of breath (SOB) and jugular venous distention (JVD) could indicate cardiac or respiratory issues unrelated to radiation, and localized pain, swelling, and erythema are more characteristic of a local inflammatory response rather than the systemic effects of radiation post-mastectomy.

Correct Answer: A

Rationale: The correct answer is Albuterol 3 ml via nebulizer. Albuterol is a bronchodilator that helps relieve wheezing and coughing by opening up the airways, making it the first-line treatment for allergic reactions presenting with these symptoms. Cromolyn and aminophylline are not typically used as first-line treatments for acute allergic reactions with wheezing and coughing. Methylprednisolone, a corticosteroid, may be beneficial for inflammation in the setting of an allergic reaction but is not the initial medication of choice to address wheezing and coughing.

Correct Answer: A

Rationale: In a patient with compartment syndrome, the key symptoms include unrelieved pain, pallor, and pulselessness. These symptoms indicate reduced circulation in the affected compartment. Choice B is incorrect as localized swelling and numbness are not typically associated with compartment syndrome. Choice C is incorrect as fever and infection are not primary symptoms of compartment syndrome. Choice D is incorrect as weakness and fatigue are not typically seen in compartment syndrome.