Throughout the show Sally McMillan had her normal long hair reaching down to her lower back, until her interrogation of Dave Duncan in the hospital grounds. There, as she interrogates Dave Duncan, she appears with her hair cut to neck length. In her next scene and for the rest of the episode her hair has returned to its usual long length. No explanation is given for this sudden change for it being long, then short, and back to long.
When Dr. Eisner gives Mac his injection he leaves the medicine bottle on the front middle part of the shelf under the medicine cabinet. When Mac later goes to look at the bottle he picks one up that was in the back on the left side of the shelf.
When Dr. Janetta runs through the glass window, he starts going face forward (when shown from the hallway ); but when the view switches to inside the room, he is leading with his back.
At the end, the actor playing the video technician presses the wrong button for Play, as he must have pressed the Fast Forward button instead, since the wheels holding the tape spin at a much faster rate than they would for Play.