Doctors recommend that patients minimize drinking at least a week prior to surgery in order to reduce the risks of complications during and after surgery, according to Choose Help. Just two to three drinks per day increa... More »

In preparation for a surgery, one should stop drinking alcohol at least 2 days before the operation. Patients who smoke should refrain from smoking the day before the surgery. More » Health

Generally, patients are advised not to eat or drink anything after midnight before surgery, according to the American Society of Anesthesiologists. They should also avoid drinking alcoholic beverages for 24 hours after s... More »

The colonoscopy procedure has very few risks associated with it, and rarely do complications occur, explains Mayo Clinic. Since this is a medical procedure, however, patients must sign a consent form before the colonosco... More » Health Diagnostics & Imaging

It is important to NPO, or fast before a surgery, in order to prevent the risk of choking while in surgery. NPO stands for a Latin term, "nil per os," which means nothing by mouth. More »

Lumbar decompression surgery has risks such as infection, leakage of cerebrospinal fluid, formation of blood clots, recurrent symptoms, nerve injury and paralysis, and facial sores, states NHS Choices. Infection is the m... More » Health Diagnostics & Imaging

The results from a urine test can take from a few days to a week for a positive screen, while negative results are usually found in a single day. Additionally, if a rapid test is requested, the results are received on th... More »