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what is critically low blood pressure

A 53-year-old member asked:
Dr. Payam Mehranpour
22 years experience in Cardiology
Symptoms: BP lower than 90/60 is considered low. If there are symptoms of low blood pressure such as dizziness, higher readings may be considered low. When low ... Read More

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A 28-year-old female asked:
Dr. Philip Miller
46 years experience in Family Medicine
Low BP?: what are your numbers? Have you fainted? Are you on mediciation? Have you had ambulatory BP monitoring> Get amedicalexam and evaluation.
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A 71-year-old male asked:
Dr. Jovita Anyanwu
29 years experience in Internal Medicine
ER: Vertigo not usually do slight drop in blood pressure. May need ENT evaluation.
A 38-year-old member asked:
Dr. Maritza Baez
16 years experience in Family Medicine
Can be normal: If it is always low and you feel fine, dont worry. Otherwise it can be caused by dehydration or other things. If it's new see your dr.
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19 thanks
A 26-year-old member asked:
Dr. Maureen Mays
Specializes in Clinical Lipidology
Feeling bad: Low BP is a BP that makes you feel badly: light headed, like you're going to pass out. As long as you feel good, low BP is great.
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A 50-year-old member asked:
Dr. Stephen L Roth
46 years experience in Internal Medicine
Pathophysiologic: There are averages and no absolutely fixed blood pressure numbers. Whether a blood pressure is too high or low derpends on the health of the individua ... Read More
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A 59-year-old member asked:
Dr. Michael Klein
20 years experience in Family Medicine
Depends on symptoms: This varies by age and symptoms. One important point is that a blood pressure that others consider normal /good (such as 110/70) could actually be t ... Read More
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A 50-year-old member asked:
Dr. Louis Grenzer
54 years experience in Cardiology
See below: The pressure inside the arteries is too high. The systolic pressure is that when the heart contracts and the diastolic is the pressure when the heart ... Read More
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A 48-year-old member asked:
Dr. Rick Koch
Dr. Rick Koch answered
21 years experience in Cardiology
Hypotension : Low BP is considered ok unless you have symptoms such as dizziness or lightheadedness.
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1 thank
A 43-year-old member asked:
Dr. Edward Smith
53 years experience in Neurosurgery
Depends on blood flo: Pressure is the moving force getting blood to a body part including the brain. What counts is not the pressure but the quality and quantity of the blo ... Read More
A 44-year-old member asked:
Dr. John Garner
15 years experience in Cardiology
Relative: Low blood pressure would, i suppose, be defined by most of us as a mean pressure < 50-60mmhg (big number + 2*small number / 3 is a rough estimate) ... Read More
A 57-year-old member asked:
Dr. Christopher Guzik
23 years experience in Family Medicine
140/90: The american heart association has recommended guidelines to define normal and high blood pressure. Normal blood pressure less than 120/80 pre-hyper ... Read More
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A 25-year-old female asked:
Dr. Romanth Waghmarae
38 years experience in Pain Management
Low BP: It's a problem when you become symptomatic - fainting, dizziness, blurred vision etc... Most young people can tolerate low bp.
A 32-year-old member asked:
Dr. Alon Gitig
19 years experience in Cardiology
"Low" is semantic: "normal" blood pressure is an arbitrary thing--i.e. Lower cutoffs of 100 systolic, 60 diastolic were created b/c above these are where the vast majori ... Read More
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A 40-year-old member asked:
Dr. Dorothy Carin
24 years experience in Family Medicine
Causes fainting: When your blood pressure is too low, you do not get enough oxygen to your brain and people feel lightheaded, dizzy or like they are going to faint. T ... Read More
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A 47-year-old member asked:
Dr. Louis Grenzer
54 years experience in Cardiology
It is not always: A low blood pressure in many cases is not a problem. If it is low for some bad reason such as bleeding or deyhdration, the blood supply to vital organ ... Read More
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A 42-year-old member asked:
Dr. Rick Koch
Dr. Rick Koch answered
21 years experience in Cardiology
Get it treated: Talk to your physician about determining if you have it & ways to treat it starting with lifestyle modification.
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1 thank
A 40-year-old female asked:
Dr. Robert Killian
27 years experience in General Practice
Low Blood Pressure: There is not a black and white answer to cover all humans on this question. Too low of blood pressure would be experienced as light headedness, dizzi ... Read More
A 47-year-old member asked:
Dr. Rick Koch
Dr. Rick Koch answered
21 years experience in Cardiology
Many options: Physician will MAP out plan & monitor therapies....Fyi systolic BP tends to be of more importance than diastolic.
A 47-year-old female asked:
Dr. Calvin Weisberger
50 years experience in Cardiology
Hypertension: Blood pressure over 140/90 is considered high blood presssure.
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A 45-year-old member asked:
Dr. Bart Denys
38 years experience in Cardiology
Low blood pressure: The definition of too low a blood pressure is 1. Non-hypertensive (<120/80) and 2. Symptomatic. In other words, blood pressure is not too low unless a ... Read More
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A 52-year-old member asked:
Dr. Gregory Fehr
44 years experience in Emergency Medicine
Blood pressure: Is related to age, it is a little higher as we get older, but generally for a mature adult we like to see it less than 140/90 in a resting state. BP i ... Read More
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A 46-year-old member asked:
Dr. Alon Gitig
19 years experience in Cardiology
Depends: Low blood pressure is only dangerous if it is impairing adequate oxygen delivery to meet the needs of vital organs of the body, or if it signifies an ... Read More
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5 thanks
A 54-year-old member asked:
Dr. Richard Bensinger
51 years experience in Ophthalmology
There is a range: Generally the diastolic (lower number) must be over 90 to consider it hypertension. The range for the upper number (systolic) is broader but is a pro ... Read More
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6 thanks

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

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Personalized answers
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