Doctor insights on:
What Are The Causes Of Low Blood Pressure
Vagal nerve overstim: Most causes of hypotn and low heart rate come from overstimulation of the vagus nerve . This causes slow heart rates and vasodilation with drop in blood pressure . Pts feel sweaty nauseated and have bluured vision. If they dont lie down they may pass out. ...Read moreSee 1 more doctor answer
Hypotension is defined as "low blood pressure". Blood pressure is measured as two numbers and expressed as systolic blood pressure (sbp) / diastolic blood pressure (dbp). The sbp is the pressure that is generated when the heart squeezes. Dbp occurs when the heart relaxes. 120/70 is considered normal in adults. Less than 100/60 (of either number) can ...Read more
Not many: Not many and not that important. Most common reason would be aortic insufficiency (leaky aortic valve). Other than that, there are artifacts (errors) taking the blood pressure in someone with rigid arteries that will make diastolic BP artificially low. True diastolic low BP (not related to leaky valve) requires NO treatment ...Read more
Mostly none but....: In most cases no symptoms and this is a problem because it can lurk up on you and cause heart and kidney disease as well as stroke. Some people may feel flushed, dizzy, pounding sensation in head and headache. Severe high blood pressure can also cause chest pain, shortness of breath, blurring of vision and confusion. ...Read moreSee 2 more doctor answers
Generally none: In most cases, you cannot feel your elevated BP even though anecdotally, people think they do. In a hypertensive crisis (bp ranging around >200/>110, more likely >240/>120), one may have confusion (encephalopathy), shortness of breath (heart failure) or chest discomfort (angina). Acute renal failure, which you can't feel, also occurs. ...Read moreSee 2 more doctor answers
Congratulations: In the absence of symptoms (dizziness, faintness, etc.), naturally occurring low blood pressure is not a clinical problem. Indeed, low pressure is a marker of longevity in my practice. The problem is if there's another not-natural cause for low bp, e.g., illness, medication side effect or drug interaction, occult blood loss. Then looking for root cause and remedying that is the answer! ...Read moreSee 1 more doctor answer
Suspect hyperaldo: High blood pressure with low blood potassium levels brings the potential diagnosis of elevated aldosterone level (hyperaldosteronism) as a possibility. There may be other reasons- for example if you are taking a BP medication that may cause low potassium levels but your BP is still elevated. This finding requires a proper medical evaluation and lab analysis. ...Read more
Several things: Essential HTN is most common cause.This refers to basically a combination of family tendency an such things as weight gain, high salt intake. Smoking & alcohol contribute to high blood pressure, as can diabetes.Less common are secondary causes such as from renal disease, hyperaldosteronism, pheochromocytoma and so on. Basic evaluation should include labs, urinalysis and ecg.Rx w/diet, exercise, meds. ...Read more
Mostly Genetics: The most common cause is called essential hypertension- 90% is of this type. This type is mostly from genetics. Some people are born with an inherent sensitivity to salt. So there is an environmental (diet, stress) component in some. Other causes include a narrowing of the arteries supplying the kidneys called renal artery stenosis. Other causes are hormonal, obesity/metabolic , or certain meds. ...Read more
How low?: It's normal for healthy 30 year olds to have "low bp" and this is actually a sign of above average health. For instance, 80/60 if you're feeling fine and otherwise healthy would be very good. But if your normal BP is 140/80, you become ill, and your BP drops to 80/60, it's quite serious! so, it's relative. There are limits: i've never seen a healthy adult with a BP of <80 systolic (top number). ...Read moreSee 1 more doctor answer
Blood pressure is a measurement of the force placed on the blood vessels and is comprised of the "systolic" pressure (the top number on a blood pressure meter) which is the peak pressure when the heart is pumping, and the "diastolic" pressure (the bottom number on a blood pressure meter) which is the pressure during the resting phase ...Read more
Abnormal blood pressure is a symptom in which a person's blood pressure is much higher or much lower than it should be for his age and body size. If either the systolic (upper number) pressure or the diastolic (lower number) pressure is not in the normal range, then the ...Read more
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