Artery: The study of fine paintings.
Bacteria: Back door to the cafeteria.
Barium: What to do if CPR fails.
Benign: What you are after you be 8.
Cesarean Section: Some place in Rome.
CATscan: Looking for kitty.
Cauterize: Got that pretty girl to look at you.
Colic: A sheep dog.
Coma: A punctuation mark.
D & C: Where Washington is.
Dilate: To live long.
Enema: Not your friend.
Fester: Quicker.
Fibula: A small lie.
G.I. Series: Baseball games between teams of soldiers.
Hangnail: What you hang your coat on.
Impotent: Distinguished, well known
Labour Pain: Getting hurt at work.
Medical Staff: A Doctor's walking stick.
Morbid: A higher offer on eBay.
Nitrates: Lower than day rates.
Node: Was aware of.
Outpatient: A person who has fainted.
Pap Smear: A lie about someone's father.
Pelvis: Second cousin to Elvis.
Post Operative: A postman.
Recovery Room: Place to do upholstery.
Rectum: Nearly killed them.
Secretion: Hiding something.
Seizure: Roman emperor.
Tablet: A small table.
Terminal Illness: A sick computer.
Tumour: More than one.
Urine: Opposite of you're out.
Varicose Vein: Veins that are very close together.
Thanks to James