Questions tagged [venous-system]
The venous-system tag has no usage guidance.
13 questions
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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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What is the expected life span of vascular stents?
What is the expected life span of vascular stents?
For example: Universal (coronary/venous) stent WALLSTENT-UNI Boston Scientific, metal: nitinol = titanium + nickel.
How many pulsating contractions ...
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Can blood flow destroy part of the metal stent in 10 to 40 years?
If a part of the metal stent has not grown into a vessel, can this part of the stent be washed out by the blood flow in 10 to 40 years (theoretically)?
Also are such cases known that blood flow ...
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What causes external lower leg to visibly pulse?
I wonder what causes the lower leg(fibula side) to pulse visibly for few minutes after exercising/walking etc. If the pulse is synchronised with the hearth rate, is it more likely to be a vein or an ...
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Can any external stents (or something like this) be used to solve aorto-venous conflict (May-Thurner syndrome)?
Is there can be used any external stents or something like this to solve aorto-venous conflict (May-Thurner syndrome) or Nutcracker syndrome?
For example, a stent consisting of ...
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Must one take anticoagulants lifelong after stenting of deep veins with a non-thrombotic lesion?
Must one take anticoagulants lifelong after stenting of deep veins with a non-thrombotic lesion, for example, aorto-venous conflict (May-Thurner syndrome)?
Or is it enough to take anticoagulants only ...
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How many valves per distance are common in veins?
Veins have valves to prevent backflow of blood. I am looking for a value the indicates on average how far apart those valves would be.
There are valves in most veins to prevent backflow. source
...
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What are the factors that make veins easy for a blood test one day, and difficult the next?
I take blood tests quite frequently, and most the time the technicians (Phlebotomists) spend a lot of time searching both my arms for a good vein. I pump my fists, and they smack my arms (and of ...
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Vascularization, good or bad for health/muscle growth
I have recently started at the gym and noticed an excessively flow of blood and bloated veins on my arm when I exercise them...I googled it...it says that is called vascularization but just that...and ...
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How long does it take for a body to get rid of blood clots and bubbles inside a cannula?
The blood clots and the small bubbles that are stuck inside my cannula enters my body. I asked a doctor and he said its OK if the bubbles are small and clots are not dangerous.
Are these bubbles and ...
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Plausibility of 30 gauge draw?
What are the risks, complications, and problems associated with using a 30 gauge needle to draw blood from someone with otherwise average veins? What is the certainty of hemolysis and would it be even ...
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Tourniquet application on a venous bleed
A few weeks ago in class (EMT), we were discussing tourniquet application in instances where there is bleeding that couldn't be controlled by pressure. In most cases, a tourniquet will be used on a ...
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Effect of Blood donation needles on skin
I have donated my blood 3 times now...all three times at different hospitals.
The first time, a very fine needle was used...almost similar to the one usually used in injection or to draw blood for ...
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