When Frank puts the syringe of Embutramide down on the floor in the close-up, it is clearly empty.
When applying the bandage to Zoe's head, it's clearly backwards with the white side facing out. Then later, it is applied in the proper direction.
During the experiments on the pig and the dog, it is stated that the Lazarus drug needs to be injected into their temporal lobes. However, when they are trying to bring Zoe back, the needle is in fact inserted into her frontal lobe. The temporal lobe on a human is farther back and lower.
The characters place the dog and Zoe into the MRI scanner to look at their brains. The machine is actually a CT scanner.
When the group is trying to resuscitate Zoe, you can see Olivia Wilde breathing.
Clay and Niko play a board game in an early scene called "Settlers of Catan," which requires at least three people to play.
When calling out the current being applied to each subject, Zoe uses kilovolts (kV). During the attempt on the second dog, Zoe calls out "11 kilowatts" instead.