How do the respiratory and circulatory systems work together to maintain homeostasis? Group of answer choices

The respiratory system takes in carbon dioxide, while the circulatory system delivers carbon dioxide to the cells.

The circulatory system takes in carbon dioxide, while the respiratory system delivers carbon dioxide to the cells.

The respiratory system takes in oxygen, while the circulatory system delivers oxygen to the cells.

The circulatory system takes in oxygen, while the respiratory system delivers oxygen to the cells.

A62-year-old man is being treated for an acute myocardial infarction. he originally came to the ed with substernal chest pain and diaphoresis. given his risk factors of hypertension, diabetes, tobacco use, and family history, he is considered high risk. an ecg in the ed reveals a left-bundle branch pattern, and cardiac enzymes are elevated slightly. after a focused evaluation in the ed, the patient receives iv thrombolytics. although his bundle branch pattern never resolves, the patient is chest pain-free and haemodynamically stable after thrombolysis. two days later, however, the patient reports episodes of recurrent chest discomfort and shortness of breath overnight. in evaluating for potential myocardial reinfarction, which of the following is the most appropriate diagnostic test? - creatinine kinase- dynamic ecg changes- lactate dehydrogenase- myoglobin levels- troponin i level