Pre-Anesthesia Instructions
Pre-dental anesthesia instructions: what to eat, what to avoid, medications and preparation. Complete guide for a safe procedure in Mexicali.
Guide written by Dr. Jesara López · Dental Surgeon (UABC) · Mexicali, B.C.
Follow these instructions to ensure a safe and successful procedure. Your preparation is essential for your well-being.
Why is preparation important?
Correctly following pre-procedure instructions with anesthesia significantly reduces risks and ensures your treatment is as safe and comfortable as possible. These instructions apply to extractions, surgeries, root canals, and other procedures requiring local anesthesia or sedation.
Days Before the Procedure
- Report your medical history: Communicate all your health conditions, medications you take, known allergies, and previous experiences with anesthesia.
- Ask about your medications: Ask if you should stop blood thinners (aspirin, warfarin), diabetes medications, or others. DO NOT stop anything without indication.
- Get a dental cleaning: If possible, schedule a dental cleaning 1-2 weeks before to reduce bacteria and infection risk.
- Buy prescribed medications: If you were prescribed antibiotics or painkillers, get them in advance. Start the antibiotic the day before if indicated.
The Day of the Procedure
Follow these instructions carefully
Food & Drink
Local Anesthesia
Eat something light 2-3 hours before. Don’t come on an empty stomach to avoid dizziness or fainting.
💡 Avoid heavy or greasy meals
Sedation / General Anesthesia
Total fasting for 6-8 hours before the procedure. No eating or drinking anything, not even water.
⚠️ Non-compliance may cancel your appointment for safety
Recommended Clothing
- Comfortable, loose clothing
- Short sleeves or easily rolled up
- Low, comfortable shoes
- Avoid tight or warm clothing
What to avoid
- Contact lenses: May become irritated during procedure
- Jewelry and long earrings: May interfere with equipment
- Excessive makeup: Especially lipstick
- Dark nail polish: Makes oxygen monitoring difficult
- Mouth/face piercings: Must be removed for safety
Do’s and Don’ts
DO
- Brush your teeth well before appointment
- Arrive 10-15 minutes early
- Come with companion if sedation
- Inform if you have flu, cough, or fever
- Rest well the night before
- Apply lip balm beforehand
- Bring list of current medications
DON’T
- Consume alcohol 24-48 hours before
- Smoke on procedure day
- Self-medicate without consulting
- Come fasting for local anesthesia
- Drive after sedation
- Hide medical information
- Use recreational drugs days before
Substances to Avoid
These substances can interfere with anesthesia and increase risks:
- Alcohol — 24-48 hours before: Can interact with medications and increase bleeding
- Tobacco — 12 hours before (minimum): Reduces oxygenation and impairs healing
- Excessive caffeine — On procedure day: Can increase anxiety and blood pressure
Do you need to come with someone?
- Simple Local Anesthesia — Optional: You can come alone and drive back
- Conscious Sedation — Required: An adult must bring you, wait, and take you home
- General Anesthesia — Required: Companion must stay with you for several hours
After sedation you should NOT drive, operate machinery, or make important decisions for 24 hours.
What to do if you feel unwell?
Contact the clinic BEFORE your appointment if you have:
- Fever or elevated temperature
- Flu, cough, or nasal congestion
- Sore throat
- Stomach upset or diarrhea
- Any active infection
💡 It may be necessary to reschedule your appointment for your safety.
Checklist
Before leaving home, confirm:
- I followed fasting instructions (if applicable)
- I took my allowed medications
- I brushed my teeth well
- I’m wearing comfortable, short-sleeve clothing
- I’m not wearing jewelry or contact lenses
- I have my ID
- My companion is ready (if needed)
- I have the clinic’s phone number handy
Frequently Asked Questions
Can I take my medications on the day of the procedure?
Essential medications (blood pressure, heart, thyroid) can usually be taken with a small sip of water. Ask specifically about each medication.
What happens if I don’t follow fasting instructions?
For your safety, the procedure may be canceled and rescheduled. Fasting prevents serious complications.
Can I drive after an extraction with local anesthesia?
Yes, if it was only local anesthesia without sedation, you can drive. Wait until the numbness wears off.
Should I stop blood thinners?
Never stop medications without medical indication. Inform us that you take them and you’ll receive specific instructions.
Important Information
- These instructions are general. Always follow your dentist’s specific instructions.
- If you have special medical conditions, inform us in advance.
- Good preparation = a safer and more comfortable procedure.
