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How low can blood pressure go before it becomes an issue?

By Anonymous September 30, 2011 - 11:46am
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I normally run a BP around 130/70 to 120/70, but the other day my BP dropped to 80/34. This happens frequently, sometimes as much as once a day, I get very dizzy. Any ideas? Should I be concerned.

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HERWriter Guide

Hi Anon

Thanks for your question!

Blood pressure is generally considered low when it's at 90/60 or below - although low blood pressure affects people differently.

Dizziness would certainly occur with your level of low blood pressure.

Reasons for low blood pressure include:

Hypovolemia is the most common cause. It may be due to:
Excessive use of loop diuretic medications ( furosemide , bumetanide , ethacrynic acid )
Vasodilator medications (nitrate preparations, Ca blockers, or ACE inhibitors)
Prolonged bedrest
Addison’s disease (with inadequate salt intake)
Impaired autonomic (nerve) reflex due to certain diseases:
Pernicious anemia
Guillain-Barre syndrome
Riley-Day syndrome
Shy-Drager syndrome
Decreased heart muscle contractility or vascular responsiveness
Certain drugs:
Monoamine oxidase (MAO) inhibitors ( isocarboxazid , phenelzine , tranylcypromine )
Tricyclic antidepressants ( nortriptyline , amitriptyline , desipramine , imipramine , protriptyline )
Tetracyclic antidepressants
Phenothiazine antipsychotic drugs ( chlorpromazine , promazine, thioridazine )
Atypical antipsychotics (eg, Seroquel )

You can read lots more on our Low Blood Pressure page here, including risk factors and treatment options: http://www.empowher.com/condition/low-blood-pressure

Since this is happening to you once a day, you need to see a doctor as soon as possible to find the cause and eliminate it.

Good luck and thank you for writing!

September 30, 2011 - 12:05pm
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