aha ini baru aja mo g cari tauuu secara kemaren ini g nungguin tante g yang operasi usus buntu tb2 g jadi pengen tau aja napa kalo operasi selalu ijooo ya kaya di pelm2 juga ijo kan banyaknya...... eh tyt dah ada di yahoo answer.. jadi g post aja dsini ya..
They're not green. They're blue.
This question ultimately comes down to why we have such a specific ritual of sterile technique in the OR, and I'll answer the "color" question in that context.
Other than a few extremely rare places that choose to use some sort of reusable cloth drape, all OR drapes are a disposable impregnated paper and synthetic fiber material that is designed to be moisture resistant.
The sterile drapes on the patient are blue. The sterile drape on the back table is blue. The sterile wrap on the equipment tray is blue. Even the surgical gowns are blue and are made of basically the same type of disposable moisture resistant paper/plastic material.
Why are these all blue? It's simple. By convention the blue areas are sterile and can only be touched by people who are "scrubbed in", meaning that they've washed and gowned and gloved in the standard way to handle sterile equipment and work inside the sterile field.
There are other people in the operating room who are NOT scrubbed in. The anesthesiologist is not in sterile attire, although they are wearing a hair cover and a mask. There is a circulating nurse who helps supply the people who are scrubbed in, and this circulator is not in sterile attire, although like everyone in the OR, they wear a hat and a mask. Those who are not scrubbed and working over the sterile field know not to touch or to reach over or across anything that is blue. To do so would be a violation of sterile technique and would necessitate the re-draping of that spot with a new blue cover.
The sterile field is considered to be anything on the top surfaces of those things that are prepped sterile and draped in. The top surface of the draped patient is sterile, but the blue drapes hanging down the side of the table are no longer considered sterile. They're "contaminated". The top surface of the back table is sterile, but again, the drapes hanging down the sides are no longer sterile once the drape has been placed. The top surface of any "Mayo stands" (tray tables that are used beside the OR table) which are fully draped to the ground are considered sterile, but the drape that hangs down from the top is treated as yet another contaminated surface.
The OR gown, when the packaging is opened, is completely sterile. Once it's put on, then only the regions from the chest to the waist and from the hands to above the elbows are considered sterile.
Ultimately, the truth is that "sterility" is more of a method than a state of cleanliness. By that, I mean that there are bacteria everywhere and what we do is to minimize them, but they're not going to be completely gone. We use disposable equipment because the manufacturing process is much more efficient at eliminating bacteria than a cleansing process is on used equipment. There is a constant stream of disposable material used in the operating room, that is used and then moved off the field, taking contamination with it. The method involved in maintaining a minimized bacterial count involves starting with sterilized materials and then replacing with fresh sterilized materials any time there is a potential source of contamination. In a sense, the most important contribution to the maintenance of a sterile field in the operating room is the constant stream of garbage being created.
I like to describe this flow of waste disposables as being like a "river" and we use it to capture bacteria in the "current" and carry them downstream into the garbage bags where they're safely out of the field.
Source(s):I'm a surgeon.
Actually, it's not a convention, at least not initially. Up until the 1950s, the drapings were white. Surgeons complained about the reflected glare from the bright Overhead lights. Some intelligent person suggested that the glare would be less with a pastel color, and green seemed the most pleasing. Over the years, blue has superseded green as the preferred color.
So it might be convention now that only those scrubbed in touch blue drapings, but it didn't start out that way.
Source(s):Lived thru the era. Worked in OR in 1950s. Green drapes were used in our hospital's major operating rooms. Minor ORs still used the old white ones until they wore out. (The Sisters of Charity were good women, but they were nevertheless very thrifty.)
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