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Scrubbing Your Hands

Scrubbing your hands is much more than the routine hand washing we all do before examining patients. It is a ritualistic procedure designed to increase safety for the patient and for you.

Before starting your scrub, make sure you are wearing a clean scrubsuit, surgical cap and surgical mask. The cap should completely cover your hair. The mask should fit securely, particularly over your nose, but not so tight that it impairs your breathing. If you should cough or sneeze, the exhaled air should be able to vent out the side of your mask. You will also need eye protection against splash of body fluids. Some surgical masks include a plastic screen. You may prefer to wear surgical goggles. Eyeglass wearers sometimes rely on their eyeglasses to protect them. The degree of protection depends on the size and fit of the corrective lenses.

Your hands have a lot of bacteria on them, particularly under the nails, within the skin oils, and at the bottom of the skin folds. In theory, it shouldn't matter how many bacteria are there since you will be wearing sterile gloves during surgery. In real life, those gloves often develop holes in them over the course of surgery.

The goal is not to eradicate every last bacterium from your skin (not possible), but to drastically reduce the number of bacteria on your skin both at the beginning of surgery and for its' duration. There are several very satisfactory ways to do that:

  1. Traditional Scrub: Under running warm water, use a plastic nail file to clean beneath the nails. Wet your hands and forearms up to the elbow. Once you begin scrubbing, keep your hands above your elbows, so the water will drip away from your hands and down to your elbows. Scrub brushes usually have two sides (foam side and bristle side). Use the bristles for the palms of the hands and underneath the nails. Use the foam side for everything else.

    Betadine scrub kills lots of bacteria and has long-lasting bactericidal effects. It is an effective scrub solution, but some individuals develop skin sensitivities to it. Other commercial scrub solutions can have similar effects. Plain alcohol kills plenty of bacteria but can damage the skin and has no lasting bactericidal effects once it has evaporated. Hand soap kills many bacteria, is gentler on the skin, but lacks the long-lasting effects of other preparations.

    Scrub your hands and forearms, covering the entire skin area. Rinse and repeat, up to several times. Total scrub time should be about 2 minutes. That is long enough to do an effective job, but not so long as to damage the skin. In the olden days, surgeons used to do a 10 minute scrub, but very few do this anymore. The marginal decrease in bacteria counts is offset by skin damage and long-term bacterial colonization of the traumatized skin.

  2. Lotion scrub: Recent commercial scrub developments include a lotion (with emolients, antibacterial chemicals, and alcohol) that are designed to be rubbed into the skin of the hands and forearms. The lotion is rinsed off, and a second application made. After final rinsing, the hands and forearms are as bacteria-free as if a traditional scrub had been used. Advantages include less trauma to the surgical team's skin, and faster preparation (you don't need a full 2 minutes). Drawbacks include cost and contact sensitivity for the skin of some of the team.

Once you have scrubbed, step back from the scrub sink and keep your hands away from your body and at about chest level. Keep them raised like this while you enter the OR (backwards through the door, using your hip to open it. This stylized position offers the best protection against you inadvertently contaminating your hands, and provides visual cues to those around you that your hands are scrubbed and should not be touched. If you accidentally touch something, just announce that you are contaminated, leave the OR and re-scrub.


This information is provided by The Brookside Associates.  The Brookside Associates, LLC. is a private organization, not affiliated with any governmental agency. The opinions presented here are those of the author and do not necessarily represent the opinions of the Brookside Associates or the Department of Defense. The presence of any advertising on these pages does not constitute an endorsement of that product or service by either the US Department of Defense or the Brookside Associates. All material presented here is unclassified.

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