The redheaded old man coughed bruskly.  “I feel fine, when can I go home, doc?”
“Well, you look good, but a heart rate of 140 with walking isn’t normal,” I replied.
Maybe it’s his pneumonia.  No, I said that two days ago.  Maybe he’s still  recovering.  No, I said that yesterday.
Hunch.
“We need to get a chest CT [...]

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