At the beginning of the episode, the glass sign at the airport falls and shatters, but in the scene after it shows that the sign is perfectly fine and not shattered.
At the end of the episode, Shaun is helped in the OR by 2 assistants. The female assistant has long, painted nails; the male assistant wears a wedding ring on his left hand. Both are absolutely not allowed in an OR.
When they go outside to ask Shaun why he recommends an Echo-cardiogram, light snow is clearly on the ground. Obviously not very likely in San Jose.
The airport depicted as San Jose International (SJC) is actually Ronald Reagan Washington National Airport (DCA). The arched bridge visible in the far background is the Woodrow Wilson Memorial Bridge.
There is no Terminal C at San Jose Airport. There are only terminals A and B. Gates 1-16 as listed on the sign that falls is actually in Terminal A.
In the establishing shot of the airport, which takes place in San Jose, California, there's a skyway and other buildings close to the airport surroundings. In reality, San Jose Airport doesn't have any skyways near the perimeter of the runways and skyscrapers are further away from the airport than shown.