U.S. doctors online nowAsk doctors free
Marysville, CA
A 25-year-old female asked:

can sinus tachycardia cause lightheadedness? i just found out on the 15th. it's only been going on for at least a week and only when i go up stairs.

1 doctor answer4 doctors weighed in
Dr. Ira Friedlander
Cardiac Electrophysiology 42 years experience
The lightheadedness: you are experiencing is probably due to low blood pressure and the sinus tachycardia is a physiological response to this. Not the other way around. Sinus tachycardia does not cause lightheadedness. These findings may be suggestive of autonomic dysfunction or a disorder called POTS (positional orthostatic tachycardia syndrome.) Ask your health care provider if you are being evaluated for this.

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

Ask doctors free
Personalized answers
Talk to a doctor
$30 per visit with

Similar questions

A 16-year-old member asked:

What is a peroxide sinus wash, and when is it needed?

2 doctor answers7 doctors weighed in
Dr. Steven Levine
ENT and Head and Neck Surgery 40 years experience
Rinse: It is a rinsing of the sinus cavity with hydrogen peroxide. I would only do it under the recommendation and supervision of an otolaryngologist (ent).
A 46-year-old member asked:

What's available at a pharmacy to treat sinus issues without a prescription?

2 doctor answers4 doctors weighed in
Dr. Michael Carson
Internal Medicine 29 years experience
Sprays, Sudafed: 1) nasal saline spray. A very gentle/effective treatment. Use 2-8 times a day and it does not cause long term problems. 2) afrin or neo-synephrine:very potent decongestant sprays for severe sinus pressure. Only used as directed. You must not use for more than 48 hours. 3)pseudoephedrine (sudafed). Use this pill as directed. Careful if you have palpitations/heart issues.
A 42-year-old member asked:

What can I do for stopped up sinus's?

2 doctor answers5 doctors weighed in
Dr. David Astrachan
ENT and Head and Neck Surgery 37 years experience
Prob not sinuses: Nasal congestion is often confused with sinus congestion. If you are having trouble breathing through your nose you can try an otc decongestant antihistine combination with or without nasal saline. Stay away from decongestant nasal sprays as these are very addictive. If simple measures fail to give you relief you may have a viral or bacterial infection. At that point best to see your md.
A 18-year-old member asked:

The mucous from my sinus' are bloody in the morning, why is that?

2 doctor answers6 doctors weighed in
Dr. Carlo Contreras
A Verified Doctoranswered
A US doctor answeredLearn more
Many causes.: The most likely causes are simple irritation from dry air, dry mucous rubbing, or other mechanical irritation. If there is a large amount of bleeding, or if it happens every day for a week or more, see your doctor. Things to try in the meantime include humidified air, drinking plenty of water, and abstaining from inserting objects into the nostrils. Very rarely polyps can grow and bleed.
Lebanon, Missouri
A 33-year-old female asked:

Echo in nov 2010 was 65% new one 55%.I have pvcs and sinus tachy. What would cause the drop in ef? Should I be worried?

4 doctor answers10 doctors weighed in
Dr. William Lizarraga
Internal Medicine 16 years experience
Probably no worries: If you have a significant cardiac history, then there may be a cause for concern, but these are both considered relatively normal ejection fractions and may be slightly different due to the differences in the way the echocardiogram was performed. Sometimes very frequent pvcs can affect ef, but they typically have to be quite pronounced (>25% of the underlying rhythm).

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

Ask doctors free
Personalized answers
Talk to a doctor
$30 per visit with
Last updated Nov 20, 2016

People also asked

Related topics

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with


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.