There are a total of 23 rooms in Theme Hospital, each with their own purpose. Read below for a description of what each one's for, and who you need to work there.
GP's Office
The most important room in the hospital - all patients will pass through here. Used for basic diagnosis. Requires 1 Doctor.
General Diagnosis
A more advanced diagnosis room. If the GP's Office can diagnose something the patient is sent here
Cardiogram
Machine used for diagnosis. Quite effective. It requires maintenance by a handyman and a doctor.
Scanner
The Scanner can diagnose almost every disease in the game. Requires maintenance and a doctor.
Ultrascan
An expensive machine but one which is very effective at diagnosing diseases and also costs the patient a lot. Requires maintenance and a doctor
Blood Machine
Takes blood samples for diagnosis. Has a wide range of diseases it can diagnose. Expensive to buy. Requires maintenance and a doctor.
X-Ray
X-Rays the patient as part of the diagnosis procudure. Costs the patient a lot but takes a lot of room in the hospital. Requires maintenance and a doctor.
Psychiatric
A curing room. Here people can be cured of some conditions by being talked out of it. More Skeletons and Bookcases help speed things up. It requires 1 doctor qualified to work as a psychiatrist.
Pharmacy
Another curing room. Medicine is distributed to patients by a nurse.
Ward
Both a Diagnosis room, where a nurse monitors a patient and a place for people who are having/have had surgery to stay. Requires a Nurse.
Operating Theater
People go here to have surgery. Requires two Doctors qualified as Surgeons.
Inflation
Place where Bloaty Head is cured. Quite funny to watch as it is burst and then re-inflated. Requires a Doctor and Maintainance.
DNA Fixer
For Alien DNA. Requires a Doctor.
Hair Restoration
For Baldness. Requires a Doctor and Maintainance.
Slack Tongue Clinic
For, you guessed it, Slack Tongue. Requires a Doctor and Maintainance.
Fracture Clinic
For Fractured Bones. Requires a Nurse and Maintainance.
Electrolysis
For Hairyitis. Requires a Doctor and Maintainance.
Jelly Vat
For Jellyitis. Requires a Doctor and Maintainance.
Decontamination
For Radioactivity. Requires a Doctor and Maintainance.
Staff Room
Staff Rest Room. Helps keep your staff at their best. Resting your staff here results in fewer mistakes,demands for pay increases and keeps them happy.
Research Department
Here is where you discover new cures,rooms etc. for your hospital. It requires at least one researcher, but two or three will help you research faster.
Toilets
Self-explanatory. The more drinks machines you have the more of these your hospital should contain. Make sure you build these or else you'll see patients going home.
Training
Trains up junior doctors. Having more bookcases and skeletons speeds the rate at which they are trained. Requires a doctor at consultant level.