Question: Given that her chest x-ray is normal, I do not believe that Mrs. Short has postoperative pericardial effusion. Since she is afebrile, I do not believe she has endocarditis. Her shortness of breath and tachycardic episodes are most likely postoperative atrial flutter. Which of the following statements is true, given the health record information? Question options: Mrs. Short has a slow heartbeat. Mrs. Short has an inflammation of the tissue lining the inside of her heart. Mrs. Short has fluid pouring out into the tissue around her heart. Mrs. Short has shortness of breath and an irregular heartbeat, most likely due to the operation. Mrs. Short most likely has a flutter in the upper chamber of her heart.