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First and foremost, assess your surroundings. The surgical tools on your left is a good start but you'll need something more effective then a scalpel to get out alive.
Seeing as the table has many tools on it, it is safe to assume that there is a hacksaw and probably even bolt cutters of some sort. These will come in handy later. Next, look to see if there's a machete-like tool, if so you don't have to go look for one. If not then you'll have to find a different primary weapon.

After you have done that look at the shelves of chemicals (every mad scientist has some), and test a few of them on the conveniently placed dead bodies in the corner. If there is heavy sizzling, take said chemical and make it more transportable (smaller vials w/ corks) so you can throw them at an enemy without depleting your entire stock of that chemical. If you happen across a chemical that causes a billowing cloud of smoke, taking it would be advisable.

another option is to create a blow-dart gun from metal pipe (hack-saw and bolt-cutters), a syringe tip with the back blocked (a nail or needle can also work), and the chemicals you now have on you (dip the syringe in the chemical and pray to your impotent god that it doesnt melt). This gives you greater range, a quick take down, and doesnt create a cacophony of shattering glass that would alert nearby enemies.

Next, you must plan an escape. If youre lucky there may be a castle map in the room, making escape much easier. If not your escape will take longer as you must determine where you are and where the nearest escape point is. For the first few minutes you are most likely undetected, but given that you were about to become an experiment, that wont last. Move as quickly and silently as you can, taking out multiple enemies from a far with your darts. If the alarm is raised, then abandon all pretenses of stealth and move as swiftly as possible. If you managed to find a gun, use it. and take all ammo you can get.

Once you reach the exit, cut the chain with the hacksaw or bolt cutters and open the gate while hauling a**. Escape into the forest and dont stop, keep going until you reach civilization and hope to god its not a cultist town as we previously discussed. From there I cant tell you what to do, either stay a night or keep going.

Awaking:

After getting lose count your body parts and see if everything works like it should things you should look for:
1. open wounds
2. stiching
3. needle holes
4. missing limbs

Know where you are and your surroundings:

If all is there then your fine for now. If not then you should try patching yourself up and hope he/she hasn't poisoned you. Then you should look at your suroundings. Scalpels are good for stabbing people in the eye and slitting throats (if your lucky). Hack saws are good aswell but look for a emergancy kit and see if theres an axe if so take that.

Chemicals and makeshift tools:

So lets say you find some chemicals. The best thing to do is test them. What you realy want is acid. So try dumping a little drop on the table and see if it eats through. and if it does try puttng some in a glass syringe. This could be useful later. Along with some chemicals that explode. Put those an a easy to carry container as well.

Escaping:

Now that you have a few tools your plan is to escape. Try looking for a map if not then your on your own. The best way is to take the door out. And if theres stairs going up and down i sugest going down wards. More than likely your in a basement soo I would go up the stairs. You can either break glass from a window and jump or try getting out through a door. That decison is up to you. Going through room to room you may find a few bullets and a gun it would be smart to collect these just in case.

Enemy Encounters:

So your almost on your way out when you encounter this freaky mad scientist. If your one of the lucky few you found a gun right? Well this would be pretty handy right about now. So you fire off enough rounds but sadly you only hit him/her about one or two times and he/she is still alive. So your choices are to hack them to bits. More than likely the scientist is unarmed not knowing you have excaped. I would aim for the knees or the head. If you want to go for the more sadistic measures. Chop his legs off then inject your prey with the syringe full of acid. Just a little bit tho because you never know who you could run into. So you walk off with the poor sap who tried to turn you into an expriment writhering and screaming in pain as the acid slowly eats them alive. If encountered by more people than you can handle this is where the explosives come in. Just throw and they blow up.

Locked doors/windows:

If you were going for the more classy act and try leaving from the door and its locked. (sumhow you forgot about the windows) Then the classy Chop and kick routine is in handy. Simply hit the door with your hatched based object and try kicking it down. For the more smarter people who take the windowed aproach just smash it open with an object smash the sharper bits jump out and run.

Warning: Do not jump out if your 6 stories from the ground that would be a suicidal atempt. (:

Outcome:

1. If you found needle holes and you were poisoned you probably would have been dead by now.
2. If your limbs had been cut off i would probably try finding a phone and call a hospital.
3. If your fine with just a few cuts and bruises i would possibly try calling the police so you don't get arrested for mass murder.
4. When all of the above (except one) is all taken care of your life should go back to normal with a few mental scars. UNLESS you have the urge to become a mad scientist your self.
5. If you find yourself with the urge to become a mad scientist please call the mental health institution