expert type icon EXPERT

Mr. Alex Preston, MD

Anesthesiologist

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, MD
  • Porterville, CA
  • Celjabinsk Medical Institute
  • Accepting new patients

Procedure age limits

The Flumazenil low rate infusion for benzodiazepine dependence is safe and effective according to recent studies. Age should not be a restriction factor for that therapy especially READ MORE
The Flumazenil low rate infusion for benzodiazepine dependence is safe and
effective according to recent studies. Age should not be a restriction
factor for that therapy especially in otherwise healthy patient population.

How long does a colon biopsy take with general anesthesia?

Colon biopsy is usually done during Colonoscopy, outpatient diagnostic procedure. This procedure doesn’t require general anesthesia, only IV sedation, or monitored anesthesia care. READ MORE
Colon biopsy is usually done during Colonoscopy, outpatient diagnostic
procedure. This procedure doesn’t require general anesthesia, only IV
sedation, or monitored anesthesia care.

Are you awake during hair transplant surgery?

Local anesthesia + IV sedation for comfort.

Do they put you to sleep to check your colon?

Usually IV sedation with monitoring.

Does fatty liver affect anesthesia?

It doesn’t. However it could slow down metabolism of some medications used in anesthesia and prolong the emergence from general anesthesia. Not significantly though.

Is it okay to have high blood pressure after local anesthesia?

Good BP control preoperatively and perioperatively should be a goal of successful operation. Postoperative high BP should be corrected by appropriate pain control and by primary READ MORE
Good BP control preoperatively and perioperatively should be a goal of successful operation. Postoperative high BP should be corrected by appropriate pain control and by primary care physician as well.

Can general anesthesia affect my lung health?

In healthy population general anesthetic is very safe and no harmful effects have been attributed to inhalation anesthetic. Even In compromised pulmonary condition, GA could be READ MORE
In healthy population general anesthetic is very safe and no harmful effects have been attributed to inhalation anesthetic. Even In compromised pulmonary condition, GA could be delivered in a safe and predictable manner. In decompensated pulmonary disease there’s alternative to inhalation anesthetic such as TIVA, total IV anesthesia. Usually the anesthetic is tailored to Pt’s condition.

Is general anesthesia used for lung resection surgery?

Yes, it’s general with thoracic epidural for pain control postoperatively.

Is local anesthesia safe for diabetic patients?

Absolutely. As a matter of fact it’s safer than General anesthesia if used in reasonable manner and with observation of total dose used, meaning not reaching the toxic dose.

anesthesia along with meth

For elective surgery in Patients with hypopituitarism, like you, it’s necessary to correct the electrolyte balance in the blood. Since the pituitary is the gland secreting hormones READ MORE
For elective surgery in Patients with hypopituitarism, like you, it’s necessary to correct the electrolyte balance in the blood. Since the pituitary is the gland secreting hormones that regulate that balance. Therefore it’s very important to do that correction preoperatively for the safest peri
operative course.

Can local anesthesia cause long-term side effects?

The simple answer is no. It could cause allergic reaction in sensitive Patients rarely, even more uncommon is local anesthetic toxicity, when the total dose of injected LA is too READ MORE
The simple answer is no. It could cause allergic reaction in sensitive
Patients rarely, even more uncommon is local anesthetic toxicity, when the
total dose of injected LA is too high. But those are treatable and
preventable. But there’s no long term side effects.

How can I prepare for local anesthesia?

You should be instructed on your prepped visit by a surgical service. But in general, the preparation is the same regardless of the kind of anesthesia, local or general. Mainly READ MORE
You should be instructed on your prepped visit by a surgical service. But in general, the preparation is the same regardless of the kind of anesthesia, local or general. Mainly NPO nothing per os, meaning no food after midnight, you may have a glass of water up to 4 hours preop. Take all your regular meds in the morning with a little sip of water, excluding the blood thinners.

Will I get general anesthesia for a bone marrow biopsy?

Bone marrow Biopsy usually is done with local anesthesia. Some IV or oral
sedation for this diagnostic procedure could be used in pediatric or
uncooperative patients.

Can endoscopy be done under general anesthesia?

It certainly could, but most of the time it usually done with monitored
anesthesia care. That’s colonoscopies and esophagy-gastro-duodenoscopies.

Should I stop taking blood thinners before anesthesia?

You most definitely should stop taking the blood thinners before your surgery, otherwise, the surgery will be rescheduled. There are several classes of blood thinners, antiplatelet READ MORE
You most definitely should stop taking the blood thinners before your surgery, otherwise, the surgery will be rescheduled. There are several classes of blood thinners, antiplatelet drugs such as Plavix and Aspirin, usually stopped 5 to 7 days preop. For some Surgeries, Aspirin could be continued. Also, there are medications that block the clotting factors such as Coumadin aka Warfarin, and the newest, like Eliquis. Those should be stopped at least 1 week and 48 to 72 hours before the surgery at the latest. Depending on which one you take you should receive specific instructions on when to stop and when to resume taking them postop.

Is it safe to go under anesthesia with COPD?

Yes, it is, if it well controlled and optimized.

Can general anesthesia cause lung problems?

General anesthesia per se could not affect healthy lungs. However inhalational anesthetic is usually avoided in Patients with pneumonia or severe COPD because it potentially can READ MORE
General anesthesia per se could not affect healthy lungs. However inhalational anesthetic is usually avoided in Patients with pneumonia or severe COPD because it potentially can exasperate hypoxia, which is a low oxygen concentration in blood. In that case, it’s preferably to use total
intravenous general anesthesia instead of inhalational. Also in emergent surgeries, there’s a risk of pulmonary aspiration in Patients with full stomachs during induction of anesthesia. That could cause chemical pneumonitis and subsequent pneumonia and ARDS aspiration respiratory
distress syndrome. It’s avoidable with rapid sequence induction and patient positioning. In general, it’s very uncommon to have lung problems from anesthesia.

local anesthesia

You are totally right. It’s extremely rare to get urinary retention from infiltration with a local anesthetic. It’s more common with Epidural or Spinal Anesthesia when local anesthetic READ MORE
You are totally right. It’s extremely rare to get urinary retention from infiltration with a local anesthetic. It’s more common with Epidural or Spinal Anesthesia when local anesthetic blocks the nerves which send signals to the bladder. In my opinion, you experienced the reaction to
methylparaben. It’s a preservative in dental Xylocaine. That means that you can safely receive this local anesthetic without that preservative if you will have another surgical procedure. Just mention to the Surgeon that you had the complication from methylparaben in the Xylocaine vial.

Can you get local anesthesia for chronic knee pain?

If you will have a procedure on your knee, for example, diagnostic knee aspiration, or knee arthroscopy with an intraarticular joint injection of local anesthetic. For chronic READ MORE
If you will have a procedure on your knee, for example, diagnostic knee aspiration, or knee arthroscopy with an intraarticular joint injection of local anesthetic. For chronic arthritis, however, it’s not effective. Depending on the degree of arthritis, it’s either anti-inflammatory
medications, or total knee replacement for severe arthritis.

What kind of sedation is done for liver biopsy?

Usually a mild sedative such as Midazolam in combination with pain
medication, short acting opioid Fentanyl if there is no contraindications.