When Micky is on the operating table, the oxygen mask that is on his face is shown falling to the floor. The very next scene right before Micky says "I'm getting dizzy" the oxygen mask is shown in Micky's hand.
When the Monkees are shown in the Monkeemobile after leaving the hospital they are all wearing identical outfits again even though in the hospital they were all wearing different clothes.
Davy gives the Monkees address as 1438 North Beechwood to the nurse at the Nurses Station. In previous episodes it was 1334 North Beechwood.
Flipped shot. When Michael Nesmith, Micky Dolenz, and Davy Jones stick their heads around the hospital door, dressed as patients, their hair is parted on the wrong side.