The cardboard cutout daughter of PC Cutout is actually a picture of John Hannah's daughter.
There is a sign in the hospital indicating the direction to a "Hattie Jacques Ward" referencing the Carry on Matron (1972) film where Jacques played a matron.
The wards in the hospital that Jack visits include the Shayne Ward (winner of the 2nd season of X Factor), Ear, Nose & Throat Removal, Almost Dead Jurors Ward, Second World Ward, Looks A Bit Nasty, and Words on Sign.