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In this video “Influenza A and Influenza B: Symptoms and Severity” you will learn to:
►Specify the type of infection caused by influenza and which organ system influenza primarily affects
►Distinguish type A and type B strains of influenza and specify which type is more serious and likely to mutate
►List 8 classic symptoms of influenza

00:00 What is Influenza?
00:51 Type A Influenza
01:49 Type B Influenza
02:20 Symptoms of Influenza

► This video is part of the Lecturio course “Med-Surg/Pathophysiology”
► WATCH the complete course on http://lectur.io/influenzasymptoms

► THE PROF: Dr. Rhonda Lawes is a Certified Nurse Educator (CNE), and an Assistant Professor at the University of Oklahoma College of Nursing in Oklahoma, USA.
She obtained her PhD in Educational Psychology from Oklahoma State University in 2016.
Due to her achievements, she has earned numerous teaching awards. She teaches nursing students how to use the science of cognitive learning to maximize their study effectiveness.
Within Lecturio, Dr. Lawes is the Director of Nursing Education Programs, and teaches courses on Pharmacology (Nursing), Medical Surgical Nursing and Pathophysiology.

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This video “Causes of Heart Failure” is part of the Lecturio course “Cardiology” ► WATCH the complete course on http://lectur.io/causesofheartfailure

► LEARN ABOUT:
– Population attributable risk factors
– Ischemic heart disease
– Rarer causes of heart failure
– Abuse of drugs such as alcohol and cocaine and their effect on the heart

► THE PROF:
Your lecturer is Joseph Alpert M.D. He is Professor of Medicine at the Sarver Heart Center as well as Director of Coronary Care and Medical Director of Cardiac Rehabilitation at the University of Arizona. Additionally, he is a member of the most important cardiologic institutions such as the American Heart Association and the European Society of Cardiology. Because of his outstanding teaching proficiency he is board certified in internal medicine and cardiovascular disease and has won many teaching awards such as the George W. Thorn Award for Excellence in Teaching, the William Osler Master Teacher Award, and the Edward Rhodes Stitt Award for Outstanding Teaching. Furthermore, he received the Distinguished Achievement Award from the Clinical Cardiology Council of the American Heart Association and was selected “Gifted Teacher of the Year” in 2004 by the American College of Cardiology.

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Cardiac Insufficiency (CHF, Heart Failure) and Pulmonary Edema — Classification and Treatments
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What is Coronary Heart Disease? Coronary heart disease or CHD refers to a narrowing of the coronary arteries, the blood vessels that supply oxygen and blood to the heart.

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It is also known as coronary artery disease and it is the
leading cause of death worldwide. It is a major cause of illness and death. Coronary heart disease
normally happens when fatty deposits called cholesterol accumulates on the artery walls,
creating plaques. The arteries narrow, reducing blood flow to the heart. Sometimes, a clot can
obstruct the flow of blood to the heart muscle. CHD commonly causes angina pectoris (chest
pain), shortness of breath, myocardial infarction, or heart attack. A heart attack is the sudden
slowing or stopping of contractions of the heart muscles. This could be due to malfunction of the
cardiac muscles. Part of the heart muscle dies due to lack of oxygen. Heart attacks can also lead
to death.
CHD can also be caused by hypertension, coronary thrombosis, arteriosclerosis and
atherosclerosis. Hypertension is also known as high blood pressure, it is when our blood
pressure, the force of blood flowing through your blood vessels, is consistently too high.
Coronary thrombosis is forming of blood clot or thrombus in the artery. It is most likely to occur
in narrow arteries. Arteriosclerosis and atherosclerosis is the narrowing and hardening of arteries.
This happens due to cholesterol deposition on them. Most of the blocks in the artery are caused
by a combination of atheroma and thrombus. When this bloackage occurs it is called coronary
occlusion.
Causes of Coronary Heart Disease
CHD can be caused due to unhealthy lifestyle habits and even genetics. Certain mutations in the
genes are linked to this disease. A study published in PLOS in 2017, even linked CHD to food
preparation on high heat. Unhealthy diet rich in cholesterol and saturated fats, leads to high
blood cholesterol level. Smoking increases heart rate and blood pressure, this causes blood to
clot more easily. Carbon monoxide in cigarette smoke replaces some of the oxygen in our blood.
This increases our blood pressure and heart rate by forcing our heart to work harder to supply
enough oxygen.
Women who smoke and take birth control pills are at greater risk of having a heart attack or
stroke than are those who do not smoke or take birth control pills, because both can increase the
risk of blood clots. Tobacco has toxins, which reduces the blood’s ability to carry oxygen. Stress
releases adrenaline, which increases heart rate and blood pressure.
Prevention
A diet rich in fruits, vegetables and whole grains can help protect your heart. Aim to eat beans,
low-fat or fat-free dairy products, lean meats, and fish as part of a healthy diet. Avoid too much
salt and sugars in your diet. Limiting certain fats you eat also is important. Exercise regularly and
maintain weight. Stop or do not start smoking. Avoid all forms of tobacco use, as all are equally
harmful. Reduce stress in your life.

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This video “Genetic Diseases: Categories” is part of the Lecturio course “Genetics” ► WATCH the complete course on http://lectur.io/geneticdiseasescategories

► LEARN ABOUT:
– Categories of Genetic Diseases
– Chromosome disorders
– Single-gene disorders
– Multifactorial disorders

► THE PROF:
Dr. Georgina Cornwall has taught a broad array of Biology courses at different U.S. universities, currently at the Colorado Mountain College in Aspen. Dr. Cornwall is an active promoter of hybrid teaching formats like online and interactive courses. Thus, she uses modern technology to engage her students in the diverse disciplines of biology – from Microbiology to Genetics.

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Human Genetics – Chromosomal Aberrations
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