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Questions tagged [blood-pressure]

Use this tag when asking about the pressure of the circulating blood on the walls of blood vessels. Blood pressure is a reliable indicator of several medical conditions.

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Area unit for mmHg pressure

Atmospheric pressure is stated as 14.7 pounds per square inch (square inch is the area unit). When mmHg is utilized, what is the area unit? For example, if blood pressure is "120", does that ...
user3808252's user avatar
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Describing the relationship between catheter lumen occupancy and distal blood pressure in intracranial

I am trying to characterize how the outer diameter (OD) of an aspiration catheter affects blood pressure at the face of a thrombus relative to the caliber of the vessel. In other words, how does the ...
Brock's user avatar
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How does blood flow change between systolic and diastolic phases?

Summary What is the change in flow between systolic and diastolic phases specifically in the muscular arteries? There is a lot of information on how pressure changes between these phases (see graph) ...
Luke Hamilton's user avatar
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1 answer
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Does blood pressure continue through the diastole phase if the blood pressure cuff pressure is not released sufficiently?

I've been having trouble understanding literature around the auscultatory blood pressure measurment technique. The values of systolic and diastolic pressure are then determined in a process where a ...
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Where in the arterial system is the blood pressure intended to measure?

I've seen the blood pressure consistently being defined as the pressure exerted by the blood onto the outer wall of the blood vessel. However, the arterial system branches, changes diameter, and ...
Ryan Folks's user avatar
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29 views

What nutrients directly increase the blood preassure when absorbed?

If I understand this article correctly, the uptake of sodium from the gut into the blood stream directly increases the blood preassure, partly by retaining water in the blood stream. What nutrients (...
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Can Clonidine or chemically similar drugs (i.e. Guanfacine) cause or worsen Psoriasis?

Can Clonidine or chemically similar drugs (i.e. Guanfacine) cause or worsen Psoriasis? If so, in what mechanism? I didn't find any data about Guanfacine but I have found few articles mentioning ...
somo's user avatar
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1 answer
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What is intermittent administration?

I have come across this study headline: Intermittent clonidine regimen abolishes tolerance to its antihypertensive effect: a spectral study https://pubmed.ncbi.nlm.nih.gov/17414230/ I am not a ...
Alexov's user avatar
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2 votes
0 answers
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Blood Pressure / Pulse Correlation

I've been working on trying to lower my blood pressure. As part of that, I've been reading up on what blood pressure is, and how it is impacted by exercise. From what I understand, people who are ...
user1154644's user avatar
1 vote
2 answers
174 views

How is blood pressure monitored during surgery?

Yesterday I had a minor procedure involving anesthetic and being "on the table". As the blood pressure cuff inflated, it occurred to me that on medical TV shows, where they are doing far ...
Kate Gregory's user avatar
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Is an increase in blood pressure all that you need to increase connective tissue blood flow?

An answer to the question Does chronic caffeine use increase or decrease blood flow to connective tissue? Talks only of blood pressure (BP) values when answering the question, which to me is strange, ...
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Why is heparin contraindicated in patients with severe hypertension?

Heparin is a parenteral anti coagulant- prevents clot formation by inhibiting factors 2 a and 10 a mainly. Now, patients with severe uncontrolled hypertension- have persistent bp of more than 140/90. ...
Kavya Chandrasekaran's user avatar
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1 answer
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Is the frequency of Korotkoff beats equal to the pulse rate?

When measuring blood pressure using a sphygmomanometer (BP cuff), you listen for Korotkoff sounds caused by turbulent blood flow through the artery. They appear as beating noises. Is this beating ...
Sean Roody's user avatar
1 vote
1 answer
75 views

Post oximetry PLETH waveform and ABP waveform similarities

As a beginner in medical sciences I found a fact that was seemingly interesting to me. When I was doing some simulations with patient monitors and advanced cardiac life support cases, I found that the ...
Andrew Yu's user avatar
0 votes
1 answer
68 views

What are specific effects of a loss ACE2 functionality caused by COVID-19?

ACE2 protein on the surface of lung epithelial cell and and other cell types is a homologue to ACE which is popularly as the target protein/enzyme of blood pressure medication ("ACE inhibitors&...
Peter Bernhard's user avatar
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2 answers
109 views

Is there a term for a blood pressure level that is too high but which is typical for the patient and causes no symptoms?

In Russian, there is a semi-colloquial medical term "рабочее давление" (working pressure) - the blood pressure that is excessive, but is typical for this particular patient and causes no ...
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Why can't JVP be measured in a standing or supine position?

While carrying out the jugular venous pressure (JVP) examination, the patient is kept at a 45 degree angle with respect to the ground. Why can't it be measured in a standing or supine position?
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Can I calculate the blood pressure and pulse based on a given blood loss

Is there a function, graph, guideline or rule where I can see how a change in blood volume changes other relevant values? E. g. for every 1% of blood volume lost, heart rate rises 2 beats per minute, ...
Maritn Ge's user avatar
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1 answer
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How can I take blood pressure into the cardiac output formula?

I wanted to know if there is some kind of formula that can help me calculate the cardiac output. So, lets say we have a standing person. The StrokVolume should be around 100 cm2 for the average adult, ...
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Are individuals with controlled blood pressre still considered to have high blood pressure?

I was reading this article: https://www.bloomberg.com/news/articles/2020-03-18/99-of-those-who-died-from-virus-had-other-illness-italy-says the TL;DR is that 99% of the Covid-19 deaths in Italy had ...
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Crystalloid infusion during anaphylactic shock

My text book states that intravenous crystalloid infusion is a method of treating anaphylactic shock. I can't get why, as there is no fluid loss in case of anaphylactic shock, at least that is what ...
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Can one have high and low blood pressure at the same time?

I understand that the heart is a pump. The systolic (SYS) one is when it pumps, the diastolic (DIA) one is when it fills with blood again. Now I think the following holds: SYS of 140 mmHg or more => ...
Martin Thoma's user avatar
1 vote
1 answer
102 views

Are "Wrist" blood pressure monitors less accurate then Upper arm?

There are thoughts that Wrist blood pressure monitors like the one shown below are less accurate than Upper Arm ones. Also, one of the respectable site mentions same with reasonable arguments. Is that ...
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1 answer
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What affect does a small amount of alcohol have on blood pressure?

The internet has all sorts of information on heavy alcohol use ( it is bad). But I am wondering about a couple drinks , that is a total of 25 ml of ethanol.There is some information that it dilates ...
blacksmith37's user avatar
3 votes
1 answer
85 views

Should I drink coconut water daily? Many sites praise the health effect

Example article found with DDG: 8 Science-Based Health Benefits of Coconut Water The Bottom Line Coconut water is a delicious, nutritious and natural beverage that’s extremely good for you. ...
Sybil's user avatar
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1 answer
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How does a blood transfusion directly from one person to another through a line work?

In Person of Interest, Shaw inserts a line into a guy's arm that goes directly into her arm for a blood transfusion. See clip: https://www.youtube.com/watch?v=eYQRa6IYf0A&t=83 What determines the ...
David Hobs's user avatar
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0 answers
80 views

What are the expected variances of blood pressure readings on home monitors?

For a long time I've noticed that if I take my blood pressure a second time, the readings vary especially for the systolic reading. If I don't like the reading, I just take it again (recording both). ...
Frank Hubeny's user avatar
1 vote
1 answer
211 views

At what point would blood loss impede the ability to achieve an erection?

So first I feel I should clarify this isn't to support some vampire fetish. No this is actually to bring some scientific fact to my fictional work. How many pints in a one month period could an ...
anon's user avatar
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5 votes
1 answer
175 views

What is the blood pressure within the right ventricle?

The circulatory system can be divided into two cycles, a pulmonary circulation and a systemic circulation. As the right ventricle only needs to supply the lungs with deoxygenated blood, the muscle is ...
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How soon will a person die if they are hung upside down?

Sorry if my question is too silly or is in the wrong place. How soon will a person die if they are hung upside down?
brilliant's user avatar
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1 answer
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Does giving blood lower blood pressure?

While it seems logical that reducing any fluid in a body would reduce the pressure does the body regulate it's own pressure after donating blood or is it lowered?
Colin Ellis's user avatar
1 vote
0 answers
30 views

Is there a correlation between arthritis and diastolic blood pressure?

Is there a correlation between arthritis and diastolic blood pressure? i.e if diastolic is high you get arthritic symptoms or vice versa.
Ahsan's user avatar
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1 vote
0 answers
497 views

Why is Ebrantil (Urapidil) not FDA approved?

Ebtrantil (Urapidil) is commonly used as an antihypertensive in Europe, also due to its additive interaction with other antihypertensives, and less likely to alter the heart rate compared to similar ...
Narusan's user avatar
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3 votes
1 answer
253 views

Which vessel could a pumping vessel in the left middle side of forehead be?

There is a vessel located on the left middle side of my forehead which keeps pumping for few times noticeably every few minutes, my question is: What are vessels flowing on the left-mid side of the ...
Yahya Hussein's user avatar
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0 answers
32 views

What is a constipation remedy that doesn't give you a headache or raise your blood pressure?

What is a constipation remedy that doesn't give you a headache or raise your blood pressure the way senna, or various salts (magnesium oxide, potassium), or enemas (salts) do?
Chloe's user avatar
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3 votes
1 answer
133 views

Can a colloid intravascular volume expander be used in chronic orthostatic hypotension?

For conditions such as POTS (Postural orthostatic tachycardia syndrome) which are unable to regulate appropriate blood pressure / HR on postural changes, they are treated with volume expansion - like ...
Josh's user avatar
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3 votes
1 answer
121 views

Why does caffeine raise your blood pressure when it's a diuretic?

Why does caffeine raise your blood pressure when it puts your kidneys into overdrive?
Chloe's user avatar
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3 votes
0 answers
57 views

Physical activity and blood pressure

Apparently physical activity can significantly raise blood pressure. Is prolonged strenuous physical activity (8hrs+) a risk factor for the effects of high blood pressure?
tmsg's user avatar
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2 votes
0 answers
25 views

Measuring Blood Pressure at home

I want to start keeping track on my blood pressure at home. If I take multiple daily measurements during the month of December should I average it at the end of the month and then use that final ...
Stribor50's user avatar
2 votes
0 answers
51 views

Any meds to increase blood pressure?

Are there any meds , aside from caffeine , that increase blood pressure . I know physical exercise can produce a temporary increase but I am wondering about something that can increase it for hours. ...
blacksmith37's user avatar
3 votes
1 answer
96 views

Taking Blood Pressure Bilaterally -- Why?

There's a physician that always takes blood pressures bilaterally for EVERY patient he sees. These patients are assumed to be healthy adults coming in for basic routine medical exams. I don't see ...
Mike-DHSc's user avatar
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4 votes
0 answers
35 views

How can a BP goal be recommended, but not a diastolic or systolic goal?

Out of curiousity, I'm researching the JNC 8 guidelines for hypertension, and when reading this publication, I noticed it says: There is strong evidence to support treating hypertensive persons ...
user avatar
0 votes
1 answer
47 views

Herbs that Would Relax the Mind but Not Decrease Blood Pressure? [closed]

Recently, I have been wondering whether there are herbal remedies that would relax the mind from situations related to stress but NOT decrease blood pressure. So far, it has been easy for me to find ...
The Contextual Path's user avatar
2 votes
1 answer
63 views

Affect of raw and diluted sodium on human

What is the affect of sodium on human if taken raw and if taken diluted . For example if I take 5g salt as raw and if I diluted the same with 1 liter water and consume will the effects on the body ...
Arun Killu's user avatar
5 votes
1 answer
428 views

Is it a good idea to replace Sodium Chloride (NaCl) with Potassium Chloride (KCl) for everyday consumption?

Increased sodium intake is linked to higher blood pressure, and therefore larger chance of developing cardiovascular issues. On the other hand, increased potassium intake (within RDA, which is a ...
Lou's user avatar
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1 vote
2 answers
221 views

Correlation between blood pressure and cardiac output in the elderly

Why does blood pressure have little correlation with cardiac output in the elderly? (Source ATLS student course manual)
Rotterdam's user avatar
5 votes
1 answer
130 views

Passing out after injections [closed]

Last October I had an injection which was need for my trip to Costa Rica, a few minutes later I passed out and split my head open due to landing on concrete. On Monday I'm having a typhoid injection ...
Jordi Posner's user avatar
2 votes
1 answer
90 views

Wrist Blood Pressure Monitor Accuracy?

I have both a wrist blood pressure monitor and an upper arm blood pressure monitor. I generally enjoy using the wrist monitor more, as it's difficult for me to secure the cuff on the arm monitor, as ...
schizoid04's user avatar
1 vote
0 answers
12 views

Various effects of prednisolone

I've just been given a prednisolone treatment after widsom tooth extraction (on local anaesthetic). I'm on 40mg per day, aside with 3g of amoxicillin per day. I weigh about 62kg I've read the ...
James Well's user avatar
1 vote
0 answers
47 views

Low Resting Heart Rate but high bp [closed]

My resting heart rate is around 50 bpm but my blood pressure is around 122/78. Is this unhealthy?
heartratehy's user avatar