
Mr. Alex Preston, M.D.
Anesthesiologist
465 W Putnam Porterville CA, 93257About
Dr. Alex Preston is an anesthesiologist practicing in Porterville, CA. Dr. Preston ensures the safety of patients who are about to undergo surgery. Anestesiologists specialize in general anesthesia, which will (put the patient to sleep), sedation, which will calm the patient or make him or her unaware of the situation, and regional anesthesia, which just numbs a specific part of the body. As an anesthesiologist, Dr. Preston also might help manage pain after an operation.
Mr. Alex Preston, M.D.'s Videos
Education and Training
Celjabinsk Medical Institute MD
Celjabinsk Medical Institute 1983
Board Certification
AnesthesiologyAmerican Board of AnesthesiologyABA
Provider Details

Mr. Alex Preston, M.D.'s Expert Contributions
What kind of sedation is used for hemorrhoidectomy?
Most of the time its usually done under general anesthesia, also it could be done with a spinal anesthesia. But most of the Patients prefer general READ MORE
Can local anesthesia cause liver issues?
No liver problems, but local anesthetic can cause systemic toxicity if the dose is too high or with intravascular injection READ MORE
Is anesthesia necessary for a colonoscopy?
Mostly its done with IV sedation. Sometimes it could require either Monitored Anesthesia Care or even General anesthesia, especially in non cooperative patients. READ MORE
Are you awake during ear surgery?
Depending on the extent of the ear surgery. Some procedures on external ear, such as biopsy or excision of minor ear lobe mass, could be done in the office with local anesthesia. More invasive surgery on external ear, such as reconstruction of external ear, usually done in the hospital with general anesthesia. Majority of the procedures on middle and internal ear, icy as myringotomy, cochlear implants, other hearing correction surgeries, require general anesthetic. READ MORE
Is general anesthesia used for an appendectomy?
Absolutely. It could be combined gas and IV, most of the time, or TIVA, total intravenous general anesthesia, in patients with the history of Malignant Hyperthermia, rarely. READ MORE
What kind of sedation is used for a child's tonsillectomy?
Its not a sedation. Rather GETA, general endotracheal anesthesia. The purpose is to keep the child asleep during the surgery and at the same time to protect the airway from aspiration of blood and gastric content. That is the safest way to go with tonsillectomy and adenoidectopy. READ MORE
Is it best to be sedated for a colonoscopy?
Sedation or Monitored anesthesia care are both excellent choices for endoscopic procedures such as colonoscopy READ MORE
Is general anesthesia used for prostate biopsy?
Mostly its IV sedation or monitored anesthesia care. But general anesthesia is an option, especially for multiple prostate biopsies since it could be a long procedure. Its best to discuss the extent of the procedure and Urologists preference in terms of anesthesia with your Surgeon. READ MORE
Is colonoscopy done under local anesthesia?
Its either under IV sedation or monitoring anesthesia care depending on a patient and an endoscopist preferences READ MORE
What sedation is best for tonsillectomy?
It should be general endotracheal anesthesia, not sedation. The airway has to be protected during this surgical procedure. READ MORE
Is anesthesia required for radiotherapy?
No anesthesia unless uncooperative. IV sedation is possible. READ MORE
How long are you sedated after a lung transplant?
It depends on the length of the operation and recovery time postop. Usually the ICU sedation after the surgery should be as short as possible to reduce the hospital stay. Preferably discontinuation of mechanical ventilation and IV sedation should be within 1 st postoperative day. READ MORE
What type of anesthesia is used for tonsils removal?
General endotracheal READ MORE
Is anesthesia used for thyroid biopsy?
Usually its done with local anesthesia. IV sedation is optional. READ MORE
When is general anesthesia used for colonoscopy?
Let’s say that it is unusual to have GA for Colonoscopy. Because this procedure is least painful and minimally invasive. That’s why it’s done usually either with IV sedation or monitored anesthesia care. Although GA could be a choice in pediatric population or developmentally delayed patients. READ MORE
What anesthesia is used for leg bone surgery?
Usually it’s a combination of general anesthesia and regional nerve blocks. READ MORE
Surgery & Ashwagandha
Ashwagandha is not FDA approved medicine, and there are no based on scientific evidence recommendations. It could potentially interact with sedatives and antihypertensives as well as thyroid function. But considered safe for anesthesia, despite the fact that some recommend holding it for 2 weeks preop. My personal opinion is that it is safe for your ACL repair and should not be a problem periop, especially after 1 week after stopping it. READ MORE
Adderall before surgery
According to the recent studies, even the continuous use of Adderall for ADHD doesn’t interfere with general anesthesia. READ MORE
What type of sedation is used for toe surgery?
Either Local Anesthesia with IV sedation or General anesthesia with local anesthetic infiltration as well, for postop pain. READ MORE
Does colon surgery require general anesthesia?
Absolutely. And could be supplemented with regional anesthesia, such as TAP block, which is Transversus Abdominis Plane block for postop pain. READ MORE
Areas of expertise and specialization
Mr. Alex Preston, M.D.'s Practice location
Practice At 465 W Putnam
465 W Putnam -Porterville, CA 93257Get Direction
Mr. Alex Preston, M.D.'s reviews
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Get to know Anesthesiologist Dr. Alex Preston, who serves patients in Porterville, California.
A prominent anesthesiologist, Dr. Preston works with patients at Sierra View Medical Center in Porterville, California.
As a 167-bed, full-service acute care facility, Sierra View Medical Center is Porterville’s premier hospital and healthcare center. Located in the foothills of the Sierra Nevada mountain range, their facility is equipped with cutting-edge medical technology and state of the art equipment.
Back in 1983, Dr. Preston earned his medical degree from the Chelyabinsk State Medical Academy in Russia. Upon relocating to the United States, he completed his internship at John Peter Smith Hospital in 2000, and his residency in anesthesiology at the University of Texas Southwestern Medical Center in 2003.
An authority in his field, the doctor is board-certified in anesthesiology by the American Board of Anesthesiology (ABA). As the certifying body for anesthesiologists since 1938, the ABA is committed to partnering with physicians to advance lifelong learning and exceptional patient care. Its mission is to advance the highest standards of the practice of anesthesiology.
Anesthesiology is the medical specialty concerned with the total perioperative care of patients before, during, and after surgery. It encompasses anesthesia, intensive care medicine, critical emergency medicine, and pain medicine. Anesthesiologists have the primary responsibility of monitoring the patient’s vital signs during surgery. In addition to basic measurements such as pulse, blood pressure, and temperature, they measure the patient’s respiration.
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Nearest Hospitals
PORTERVILLE DEVELOPMENTAL CENTERl
26501 AVENUE 140 PORTERVILLE CA 93257