Megan Pallister, MD

Megan Pallister, MD OBGYN

Nitrous oxide in labor. Let’s chat about this.💨 nitrous oxide is a pain management option during labor and delivery with...
06/25/2026

Nitrous oxide in labor. Let’s chat about this.
💨 nitrous oxide is a pain management option during labor and delivery with or without an epidural
💨 it takes seconds to work and is cleared by your body in a few breaths
💨 it reduces pain perception and pain anxiety -it cannot take away the pain completely
💨 it does not cause weakness so you can move around and walk during labor
💨 it does not slow down the progress of labor
💨 side effects include dizziness and nausea
💨 this is self administered

Clear drape for the win!
06/04/2026

Clear drape for the win!

Let’s chat about colonoscopies. Since my big day is tomorrow, I asked my good friend Dr. Andrew Miller (), a colorectal ...
03/19/2026

Let’s chat about colonoscopies. Since my big day is tomorrow, I asked my good friend Dr. Andrew Miller (), a colorectal surgeon in Austin, for 4️⃣ very important things he thinks you should know about colon cancer.

1️⃣ Colonoscopy is the only screening option that can find precancerous lesions and remove them before they become colon cancer.

2️⃣ Colorectal cancer is now the #1 cause of cancer related death in both men and women under the age of 50

3️⃣ Re**al bleeding is a signal that something is wrong in the digestive tract and should prompt early and quick evaluation.

4️⃣ Young people present with late in disease because the last thing on our minds is cancer. There is no amount or color of blood per re**um that is “normal”. Blood is blood and is abnormal —> Don’t assume it is hemorrhoids, let a gastroenterologist or colorectal surgeon confirm it!

🔹 When to get screened? 45! OR if your parent or sibling has a history of polyps/colon cancer, then age 40 or 10 years prior to their diagnosis. Which ever is earlier.

‼️Of course, there is no age limit for symptoms. Re**al bleeding, subtle changes in bowel habits, weight loss, abdominal bloating —> call your doc!

🏨 What is a LEEP? 🦠HPV, or, Human Papilloma Virus, is the virus that causes abnormal cells in the cervix that can lead t...
03/04/2026

🏨 What is a LEEP?

🦠HPV, or, Human Papilloma Virus, is the virus that causes abnormal cells in the cervix that can lead to cervical cancer. Depending on your Pap smear and HPV results, your OBGYN may recommend a biopsy (colposcopy) of your cervix. If this results of this biopsy are CIN2 or worse, then you may be in need of the LEEP procedure.

This surgery is where we remove the portion of your cervix where the abnormal cells are. We use cautery to do this. We send this portion of the cervix to pathology to make sure the edges are negative and there was no evidence of cancer.

This is a very common procedure for OBGYNs. It takes about 15 minutes. Recovery is super important, so we often recommend a significant amount of time off from exercising, in*******se, swimming, etc.

📅 When is your first ultrasound during pregnancy?▫️We usually schedule your first scan somewhere between 8-9 weeks. ▫️Th...
02/27/2026

📅 When is your first ultrasound during pregnancy?
▫️We usually schedule your first scan somewhere between 8-9 weeks.
▫️The reason for this is to increase the chance of seeing a heartbeat, and therefore decreasing unwanted anxiety.
▫️While some people are 100% sure of their last menstrual period (LMP), some are not.
▫️We leave a little room on either side, and see you at 8-9 weeks in case you are somewhere between 7-10 weeks.
💗 The goal is to minimize the anxiety in the first trimester by seeing a heartbeat!
🔸 Let’s give an example. Someone comes in, believing they are 7 weeks but they are really 5.5 weeks (very common!) In these situations, sometimes the fetus is too small to see or hear a heartbeat —-> this causes increased anxiety in the mother, often thinking she has miscarried, when in fact, we just did the ultrasound a little too early!
▫️ in addition to the unwanted anxiety this may have caused, this patient now needs another (sometimes very expensive visit and ultrasound, as@these visits are often not covered under the “Global” OB insurance plan.
▫️Of course, there are often times we need to see you earlier than 8-9 weeks. Some women are already anxious, (maybe they have had a miscarriage before) and we will do our best to accommodate an earlier scan, explaining the caveats to this. Some women have bleeding before 8-9 weeks (also common!) and we will request to see you earlier.
▫️In addition, some women would like to confirm the pregnancy as early as they can. We can always (if requested) do beta Hcg hormone blood tests (usually every 48hrs) until we confirm an adequate rise.

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From my family to yours, I truly hope you have a wonderful holiday and the happiest New Year!
12/23/2025

From my family to yours, I truly hope you have a wonderful holiday and the happiest New Year!

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1111 Augusta Drive
Houston, TX
77057

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