Final answer:
The nurse should place the client with a diagnosis of mycoplasma pneumonia on Droplet precautions.
Step-by-step explanation:
The nurse should place the client with a diagnosis of mycoplasma pneumonia on Droplet precautions. Mycoplasma pneumonia is spread through respiratory droplets when coughing or sneezing, so it is important to take precautions to prevent the spread of the bacteria to others. This includes wearing a mask, practicing proper hand hygiene, and using appropriate personal protective equipment.