Well, they'll probably show it a dozen more times. To save time, he banged into the corner of a dresser in a storm and was coughing up blood. He then suffered for 60 hours until he finally got to a clinic. In the end, they left us hanging because it looks like he has a problem with his lungs and he needs more tests.
Great episode though, which is saying a lot because it's an excellent show. One of the few programs running now for which I can make such a statement (Family Guy and Ice Road Truckers are others).