Heart sounds are caused when the valves close during a normal cardiac cycle. Murmurs can be caused by turbulent blood flow through a valve that is either constricted (stenotic) or leaking (regurgitant). Mr. G's mitral valve leaks, letting blood flow through when it should be closed. How could his valve defect have caused the systolic murmur?
Mitral regurgitation is a leakage of blood that flows backward via the mitral valve during contraction of the left ventricle which results in systolic murmur.
Mitral valve is seen between the left atrium and left ventricle,it prevents the back flow of blood during left ventricular contraction. In case of mitral valve regurgitation or stenosis condition it results in back flow of blood to left atrium it further results in increased blood pressure in left atrium and fluid buildup in lungs and leads to systolic murmur. During cardiac cycle systole occurs when heart contracts and diastole occurs when heart relaxes.
A systolic murmur, like in Mr. G's case, is caused by a mitral valve defect. The valve leaks during systole, causing abnormal blood flow, which in turn leads to the creation of the murmur.
Mr. G's mitral valve defect could have caused a systolic murmur due to the leaking of the valve. In a healthy heart, the mitral valve should close during the process of systole to prevent the backflow of blood. However, in Mr. G's case, the mitral valve leaks, leading to an abnormal flow of blood. This irregular flow creates a noise known as a murmur. This is specifically termed a systolic murmur because it happens during systole - the phase of the heart beat when the heart muscle contracts and pumps blood out of the heart.
a suboptimal intake of chromium in individuals in the united states may be linked to select one: a. impaired glucose tolerance. b. elevated calcitriol levels. c. lowered serum cholesterol levels. d. elevated blood pressure.
A suboptimal intake of chromium in individuals in the United States may be linked to impaired glucose tolerance.
Chromium is an essential trace mineral that plays a crucial role in carbohydrate and lipid metabolism. Research suggests that chromium is involved in insulin signaling, glucose uptake, and the metabolism of lipids and proteins. A suboptimal intake of chromium may lead to impaired glucose tolerance, as the body is less efficient at utilizing glucose. Chromium deficiency has also been linked to insulin resistance, which can lead to type 2 diabetes. While more research is needed to fully understand the link between chromium and glucose tolerance, it is clear that chromium is an important nutrient for maintaining healthy glucose metabolism.
Your dental office is participating in a large charity event that promises to provide free dental care to a large number of children. Unfortunately, there are only a limited number of instrument kits & handpieces available and sterilizing them will slow down the delivery of care. Which method of sterilization might help in moving instruments more quickly through processing?
Chemical sterilization is a fast method of sterilization. The best method to sterilize instruments quickly is the use of isopropyle alcohol.
It is the method of killing microbes from the surface of instruments and utensils used in surgical procedure.
There are two type of sterilization.
This is done by using heat and and pressure or irradiation methods.
It takes time sterilize the instrument.
This mainly include the use isopropyle alcohol to sterilize the surface and instrument.
It is a fast method of sterilization.
Therefore, the best method to sterilize instruments quickly is the use of isopropyle alcohol.
To know more about sterilization, refer to the link:
How well do you predict that Nell will tolerate treatment with azathioprine?
there are many different reactions a person can have to medicine. more information is needed to analyze the person's reaction
Energy for contraction of myocardial cells comes primarily from a. aerobic respiration in the mitochondria b. anaerobic respiration in the cytosol c. glycoludid in the cytosol d. ATP that is stored while the heart is not contracting e. creatinine phosphate
The correct answer to the question: Energy for contraction of myocardial cells comes primarily from:___, would be, A: aerobic respiration in the mitochondria.
In order for the heart muscles (myocardium) to contract, there are a series of elements that need to be present. One of them, and most vital, is calcium, which will activate the connection of myosin and actin, the filaments in cardiomyocytes, the very units of muscular tissues in the heart. However, even if calcium were present, without ATP, the molecule of energy that will allow the process to happen, then contractions would not be possible. There simply would not be energy to allow the chemical reactions. The one organelle within the cell that is responsible to ensure there is ATP available, is the mitochondria. This production of ATP by mitochondria, happens through the process of aerobic respiration. This is why the answer is A.
Describe 2 possible methods that could be used to overcome issues of physiological balance and make a drug available in the body.
Based on human and animal studies, women are more sensitive to the consumption and long-term effects of alcohol and drugs than men. From absorption to metabolic processes, women display more difficulty in physically managing the consequences of use. In general, with higher levels of alcohol and drugs in the system for longer periods of time, women are also more susceptible to alcohol- and drug-related diseases and organ damage.
The patients states that she had a heart attack 2 years ago What medical term would you document in her PMHx? HINT: expand the abbreviation !
(MI) Myocardial Infarction
Myocardial infarction (MI, heart attack) is produced when the velocity of blood flow decreases in the heart, which can lead to injury of the heart muscle. The symptoms of a heart attack include pressure, tightness or pain in the chest, shortness of breath, anxiety, nausea and vomiting. MI can be prevented by healthy life habits such as plenty of sleep, healthy food habits, and regular exercise. A heart attack should be treated immediately by angioplasty, which is a medical procedure to unblock the arteries that transport blood to the heart.
In medical terminology, a 'heart attack' is referred to as a 'Myocardial Infarction'. It results from a lack of blood flow and oxygen to a part of the heart, causing death of cardiac muscle cells. The main cause is the blockage of a coronary artery due to a buildup of atherosclerotic plaque.
The medical term that you would document in the patient's PMHx (Past Medical History) in reference to her heart attack 2 years ago is 'Myocardial Infarction'. This is the medical term often referred to as a heart attack. A Myocardial Infarction (MI) typically results from a lack of blood flow, known as ischemia, and oxygen, known as hypoxia, to an area of the heart, which leads to the death of cardiac muscle cells. The most common cause of an MI is the blockage of a coronary artery due to a buildup of substances which forms atherosclerotic plaque, such as lipids and cholesterol.