AST (SGOT) is primarily found in the muscles, liver, and heart. As such, these enzymes will be within the normal range on a blood test. However, if there is any injury or damage to your muscles, liver, or heart, these enzymes spill into the bloodstream and will be reflected in the blood report as being elevated.
There's also a 24/7 public parking garage across the street from Mt. Royal Station at The Fitzgerald. While not as close as the Penn Station garage, it has the same $12 max daily rate & it's monthly rate is only $130.
When you use snag a space to pre-book your long term parking, Reagan Airport parking at Crystal Gateway Marriott starts at the low price of $5.99 per day, compared to $20 per day when parking at DCA.