Factual error: After the car falls off the cliff, Dixie lies unconscious and Roy takes her blood pressure. Roy wraps the cuff around Dixie's arm, then holds the manometer gauge in one hand and squeezes the bulb in his other hand. The stethoscope remains untouched around his neck, even though it's necessary to place the stethoscope bell on her brachial artery (inside of the elbow) in order to actually measure her blood pressure.
Factual error: Roy uses the defibrillator paddles on the electrocuted man twice, then after each defib Roy lifts the paddles off the patient's chest and they look at the EKG monitor, which shows flatlining the first time and a heartbeat the second time. Problem is, it's impossible for the EKG monitor to show anything at all. Either the defib paddles must be in contact with patient's body for the “quick-look” to determine the rhythm, which they were not, or the ECG electrode discs must be on his chest connecting him to the EKG monitor, and they were not.
Factual error: When Roy is electrocuted and falls from the roof, after Karen uses the defibrillator paddles on Roy, she lifts both paddles, looks at the EKG monitor and says "He's converted." How exactly could Karen have known that he's converted? It's impossible for the EKG monitor to show anything at all. Either the defib paddles have to be in contact with Roy's body for the "quick-look" to get a reading, which they weren't, or the ECG electrode discs have to be on Roy's chest connecting him to the EKG monitor, and they weren't. As an aside, just watching Marco having problems attaching the air mask, and quickly glancing up towards the camera frustrated, then giving up is priceless.