Doctor insights on:
What Does Nitroglycerin Do To Blood Vessels
Hypertension: High blood pressure can damage the cells of your arteries' inner lining. That launches a cascade of events that make artery walls thick and stiff, a disease called arteriosclerosis. Fats from your diet enter your bloodstream, pass through the damaged cells and collect to start atherosclerosis. These changes can block blood flow. ...Read more
It dilates them: It temporarily dilates them.Get a more detailed answer ›
Need diagnosis: Blood flow to the nose is controlled by the autonomic nervous system. These nerves control the size and rate of blood flow to the mucosa of the lining of the lateral wall (turbinates) and middle of the nose (septum). Dilation of the blood vessels is a vagal response. Constriction of the blood vessels is a sympathetic (adrenaline) response. I do not think you can control these responses. ...Read more
Two things: High blood pressure over many years can cause the heart to wear out such that the left ventricle becomes large and weakened. High blood pressure over many years can also predispose to the development of coronary artery disease which can cause chest pain and heart attacks. ...Read moreSee 1 more doctor answer
Nope: We all have them, couldn't live without 'em. ...Read more
Complicated: By lack of exercise, do you mean complete immobility? Also, what type of diet is the person consuming? Are they under a lot of stress? What is the family history? Many things contribute to good heart health. Exercise is but one of them, constant low intensity activity without exercise can still keep someone's heart healthy with the right diet and well managed stress and sleep. ...Read more
Antithrombin: The body has a complex system of clotting and anti clotting cascades. The principle anticlotting proteins are Antithrombin which in turn requires other cofactors to function properly. Once a clot begins to form, plasmin becomes activated which breaks down clot. Whether a clot forms or not is a race between the pro-clotting and anti-clotting pathways. ...Read moreSee 1 more doctor answer
NOT GOOD: If a major blood vessel in the neck, such as carotid or vertebral starts to get narrow, a process called stenosis, blood flow gets compromised eventually, and a stroke could ensue. Certain percentages of narrowing dictate potential surgery or use of medications. KEY issue is to do all possible to prevent a stroke. ...Read more
Hypertension: Hypertension is not related to cholesterol level. Genetics and other processes are associated with hypertension. ...Read more
Depends: How bad depends on where the clot is. In a superficial vein, it is just an annoyance. In the major artery of the brain, it would be very bad. Unresponsive means not responding to treatment. Go to this site for more info: http://www.mayoclinic.org/symptoms/blood-clots/basics/definition/SYM-20050850 ...Read more
Blood pressure: Some folks have low pressure as their normal. If a patient with an established higher normal begins to have low pressure then some causes are fever, dehydration, infection, hormonal changes, and other possibilities. If pressure is too low it can affect critical organ functions. ...Read more
Sphygomanometer: How's that for a term for the national spelling bee. That device with a stethoscope is used to measure the sounds in arteries as the device raises and lowers cuff pressure on usually the arm. The changes in sounds will allow your health professional to assign a value for the upper (systolic) and lower (diastolic) blood pressure throughout your body. ...Read more
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