
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
My mom's head injury?
I dont have all the info about your mothers medical history or current condition. But low BP could be a culprit for renal insufficiency secondary to low perfusion pressure. But again its just a thought. Head injury in this age group could be a much bigger problem. Hopefully she will be fine with good care and monitoring. READ MORE
Is there any interaction between hip cortisone shots and ivermectin?
Theres no recorded interaction between ivermectin and cortisone to date READ MORE
BP and HR after spinal ablation?
7 hours postop BP and HR elevation is not secondary to Versed used intraop. Its a short acting benzodiazepine sedative and in pediatric population metabolized in the matter of less than hour. Most likely VS are indication of postop pain. READ MORE
Anesthesia for 4 year old?
Possibly postop pain that keeps her up first 24 hours after the surgery. Oral Tylenol syrup might help READ MORE
Low blood pressure and anesthetic?
Definitely high risk. Likely requires preop optimization and cardiology consult prior to planning a surgery. READ MORE
What could cause a toothache, and how can it be relieved?
Either inflammation around dental nerve like in gingivitis or parodontosis or enamel thinning and loss. Mouth wash with local anesthetic and anti inflammatory medication can help. But if its persistent and getting worse you might need antibiotics and dentists attention READ MORE
Is tonsillectomy painful?
It is painful. And tonsillectomy is usually done under general anesthesia. READ MORE
Can I prevent constipation after anesthesia?
If its not a bowel surgery you should not have a problems with constipation. Anesthesia is not causing that problem. But surgery and dehydration could. Especially ileus after bowel procedures. Surgeons usually have a protocols that they follow postop to stimulate the bowel. That includes hydration, early ambulating postop, as well as diet with plenty of fiber and laxatives. READ MORE
Anesthesia/fetanyl/xylazine
Regular use of potent opioids such as fentanyl usually is associated with decreased peri operative pain threshold. That means that you might require more pain medication to cover your postoperative pain. If you want to avoid that I would suggest you regional nerve block as a part of anesthesia management for your hernia repair. And if you consider stop using thats a great opportunity to consult addiction specialist and to have that plan how to make it easy for you to go through your hospital stay with the minimal pain and how to carry on postoperatively. READ MORE
I have a paralyzed diaphragm .nerve block counter indicated?
I dont believe thats contraindication to nerve block. If its already paralyzed on the same side of the shoulder surgery and you dont have respiratory problems with that. However if it is on the other side of the rotator cuff surgery its better to avoid interscalene block since it can cause temporal phrenic nerve block with contralateral diaphragmatic paralysis. In that case you will have bilateral paralysis and might experience respiratory problems. But there are alternatives to interscalene block that would spare phrenic nerve and anesthetise shoulder at the same time. You just need to discuss the issue with your anesthesia provider. READ MORE
Do you need general anesthesia for a heart stent?
Most of the time its IV sedation. Occasionally monitored anesthesia care. No general anesthesia required for this minimally invasive procedure READ MORE
Is a colonoscopy with general anesthesia safe?
Colonoscopy is a low stimulation procedure. Usually it's done with IV sedation. On rare occasions, such as pediatric patient or uncooperative, developmentally delayed patient, it could be performed with MAC or general anesthesia. And since it's minor procedure it considered very safe , especially in healthy population, while used as a screening for colon malignancy. READ MORE
Can anesthesia cause lung damage?
The short answer is no. In general anesthesia is protective in overall. There are many aspects of anesthesia which all work to monitor and preserve all functions including pulmonologic, responsible for optimal oxygenation of vital organs during the surgery. READ MORE
Can you use local anesthesia for a colonoscopy?
Theres no need for local anesthetic in colonoscopy since its a low stimulation procedure. Most of the time its done with IV sedation and monitoring READ MORE
How long is general anesthesia for liver surgery?
It depends on the extent of the surgical procedure. Liver resection again could be somewhere between two to six hours. And that the extent of the anesthesia as well. READ MORE
Do you use local anesthesia for wrist surgery?
A standard of care would be a regional anesthesia with either general or monitored anesthesia care. Regional could be Supraclavicular, infraclavicular or axillary nerve blocks. READ MORE
Can general anesthesia cause any long-term issues?
Anesthesia is usually tailored and titrated to Patients condition as well as extent of the surgical procedure and is considered safe if delivered in that way. READ MORE
Can local anesthesia cause nerve damage?
Theoretically it could. When injected in high concentration directly into the nerve. However with the current technology utilizing ultrasound its very unlikely, since you can visualize an injection location. READ MORE
What anesthesia do you use for a bronchoscopy?
IV sedation mostly. On rare occasions in non cooperative patients general endotracheal anesthesia. READ MORE
Will I get general anesthesia for a tonsillectomy?
Definitely general endotracheal anesthesia in order to protect airway intraoperatively. 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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Nearby Providers
- Dr. Joseph Ipe MD465 W Putnam Ave Porterville CA 93257
- Mr. Enrique Tuesta MD465 W Putnam Ave Porterville CA 93257
- Mr. Donavan D Spencer MD465 W Putnam Ave Porterville CA 93257
- Dr. Kuldeep Singh Jagpal M.D.465 W PUTNAM AVE PORTERVILLE CA 93257
- Dr. Yvonne I. Leramo M.D.869 N. CHERRY STREET TULARE CA 93274
- Dr. Carlos L Moreno MD869 N. Cherry Street Tulare CA 93274
Nearest Hospitals
PORTERVILLE DEVELOPMENTAL CENTERl
26501 AVENUE 140 PORTERVILLE CA 93257