Get Virtual Care
  • Primary Care
  • Urgent Care
  • FAQs
  • Support Center
For Businesses
  • Direct Primary Care for Organizations
  • For DMEs and Pharmacies
  • For Health Plans
  • For Providers
About Us
  • Who We Are
  • Why HealthTap
  • Our Standards
  • Contact
Log in
Book a video appointment
Book now
  • Get Virtual Care

    • Primary Care
    • Urgent Care
    • FAQs
    • Support Center
  • For Businesses

    • Direct Primary Care for Organizations
    • For DMEs and Pharmacies
    • For Health Plans
    • For Providers
  • About Us

    • Who We Are
    • Why HealthTap
    • Our Standards
    • Contact
Log in to HealthTap
HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Interruption of blood supply to the brain the cause of fainting?

A doctor has provided 1 answer
Dr. Val Koganski answered

Yes: If not enough blood reaches the brain due to blood lost, dehydration, low bp, arrhythmia, etc. You can faint.

Dr Ali agreed

Answered 12/18/2014

5.7k views

Thank

Related Questions

A member asked:

Ate breakfast and then 45 minutes later, dizziness, faintness, nausea, shaking etc. Ambo came and took my blood sugar it was 3.9. Why low after food?

A doctor has provided 1 answer

A member asked:

Feeling in head like blood rushing..Vibrating like with faintness and dizziness. Feels like it has to do with my eye movement...Simply moving eyes.

A doctor has provided 1 answer

A member asked:

Hi there. I wake up with pins and needles in my hands/feet. Towards the end of the day at work I experience some faintness/brain fogginess. Any help?

A doctor has provided 1 answer

A member asked:

Mon-Thurs Ive had chest tightness and Heart Palpitations. Went to the doctor Monday they did EKG and blood work & theyre fine ( potassium low ) Now faintness when I eat. tried famotidine and symptoms still here. Im anemic and have Sickle C Trait?

A doctor has provided 1 answer

A member asked:

Could a stiff neck cutting off the blood supply to your brain cause brain damage?

A doctor has provided 1 answer

People also searched for:

Sudden dizziness, arms felt cold, nausea, and feeling faint, so went to ER. EKG normal, chest X-ray & brain CT & blood tests ok but low potassium. Sent home. Can Low potassium cause these symptoms?
I lose my balance, fall, feel light-headed and sometimes faint. Had a heart MRI, brain MRI, blood tests and all came back normal.What's up?
I get faintness after exercising, heartbeat feels faint, feels as not enough blood going to head, not low blood sugar as have eaten, have to lie down,?
I am feeling Nausea and dizziness while my stomach is low on food. Sometimes the pain goes to the brain or I feel faintness . once I am on Food its Ok?
Faintness nausea diarrhea light pain around belly button all occasional but have been going on for at least a month. blood after wiping after BM once?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited

For Businesses

Direct Primary Care for OrganizationsFor DMEs and PharmaciesFor Health PlansFor Providers

Company

About UsSupport CenterContact Us

Health Content

Health TopicsDoctor Q&A by Specialty

Join Us

For DoctorsJobs
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.