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Beta blockers, also known as beta-adrenergic blocking agents, are medications that reduce your blood pressure. Beta blockers work by blocking the effects of the hormone epinephrine, also known as adrenaline. When you take beta blockers, your heart beats more slowly and with less force, thereby reducing blood pressure. Beta blockers also help blood vessels open up to improve blood flow. Examples of beta blockers Some beta blockers mainly affect your heart, while others affect both your heart and your blood vessels. Which one is best for you depends on your health and the condition being treated. Examples of oral beta blockers include: Acebutolol (Sectral) Atenolol (Tenormin) Bisoprolol (Zebeta) Metoprolol (Lopressor, Toprol-XL) Nadolol (Corgard) Nebivolol (Bystolic) Propranolol (Inderal LA, InnoPran XL)
A hormone is a chemical messenger that enables communication between cells. Hormones are secreted by the glands of the endocrine system and they serve to maintain homeostasis and to regulate numerous other systems and processes, including reproduction and development.
The Zika virus, first identified in Uganda in 1947, is transmitted by the same type of mosquito that carries dengue fever, yellow fever, and chikungunya virus. A mosquito bites an infected person and then passes those viruses to other people it bites. Outbreaks did not occur outside of Africa until 2007, when it spread to the South Pacific.
Graves disease is an autoimmune disorder that leads to an overactive thyroid gland (hyperthyroidism). An autoimmune disorder is a condition that occurs when the immune system mistakenly attacks healthy tissue. Causes The thyroid gland is an important organ of the endocrine system. The gland is located at the front of the neck above where the collarbones meet. This gland releases the hormones thyroxine (T4) and triiodothyronine (T3), which control body metabolism. Controlling metabolism is important for regulating mood, weight, and mental and physical energy levels. When the body makes too much thyroid hormone, the condition is called hyperthyroidism. (An underactive thyroid leads to hypothyroidism.) Graves disease is the most common cause of hyperthyroidism. It is due to an abnormal immune system response that causes the thyroid gland to produce too much thyroid hormone. Graves disease is most common in women over age 20. But the disorder can occur at any age and can affect men as well. Symptoms Younger people may have these symptoms: Anxiety or nervousness, as well as problems sleeping Breast enlargement in men (possible) Problems concentrating Fatigue Frequent bowel movements Hair loss Heat intolerance and increased sweating Increased appetite, despite having weight loss Irregular menstrual periods in women Muscle weakness of the hips and shoulders Moodiness, including irritability and anger Rapid or irregular heartbeat Shortness of breath with activity Tremor Many people with Graves disease have problems with their eyes: The eyeballs may seem to be bulging out and may be painful. Eyes can feel irritated and be tearing. Double vision may be present. Older people may have these symptoms: Rapid or irregular heartbeat Chest pain Memory loss Weakness and fatigue
Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. You may have sleep apnea if you snore loudly, and you feel tired even after a full night's sleep. The main types of sleep apnea are: Obstructive sleep apnea, the more common form that occurs when throat muscles relax. Central sleep apnea, which occurs when your brain doesn't send proper signals to the muscles that control breathing. Complex sleep apnea syndrome, also known as treatment-emergent central sleep apnea, occurs when someone has both obstructive sleep apnea and central sleep apnea. If you think you might have any form of sleep apnea, see your doctor. Treatment can ease your symptoms and may help prevent heart problems and other complications.
Vertigo is a sensation of spinning. If you have these dizzy spells, you might feel like you are spinning or that the world around you is spinning. Causes of Vertigo Vertigo is often caused by an inner ear problem. Some of the most common causes include: BPPV. These initials stand for benign paroxysmal positional vertigo. BPPV occurs when tiny calcium particles (canaliths) clump up in canals of the inner ear. The inner ear sends signals to the brain about head and body movements relative to gravity. It helps you keep your balance. BPPV can occur for no known reason and may be associated with age. Meniere's disease. This is an inner ear disorder thought to be caused by a buildup of fluid and changing pressure in the ear. It can cause episodes of vertigo along with ringing in the ears (tinnitus) and hearing loss. Vestibular neuritis or labyrinthitis. This is an inner ear problem usually related to infection (usually viral). The infection causes inflammation in the inner ear around nerves that are important for helping the body sense balance
Breath sounds can be either normal or abnormal. These sounds come from the lungs when you breathe in or out. These sounds can be heard using a stethoscope or simply when breathing. Abnormal breath sounds can indicate a lung problem, such as: an obstruction inflammation an infection fluid in the lungs asthma Listening to breath sounds is an important part of diagnosing many different medical conditions.
Dialysis lecture 1. Dialysis Study: EXPERT NOTES for DHA, Bonent, CHT, B.Sc in Dialysis, Diploma in Dialysis https://amzn.eu/d/35Ui1kT
2. Dialysis Study : Q & A: MCQs, Fill in the blanks, True or False https://amzn.eu/d/gGn8u73
1. Dialysis Study :EXPERT NOTES for DHA, Bonent, CHT, B.Sc in Dialysis, Diploma in Dialysis, Naseha Helal.
https://play.google.com/store/....books/details?id=D_7
2. Dialysis Study: Q & A MCQ https://play.google.com/store/....books/details?id=T_3
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https://t.me/dialysislife PRINCIPLE OF dialysis
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Dialysis machine alarms
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DDS dialysis disequilibrium syndrome
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Peritoneal Dialysis
https://youtu.be/iHPPadGmsv0
Itching
https://youtu.be/T83Wm3HHU4M
What is CRRT
https://youtu.be/jPgFnoSEBMU
LVH
https://youtu.be/ZhFL3Z6LHeA
Sorbent dialysis
https://youtu.be/-rie5dC_FkY
RO Water
https://youtu.be/3jlEsK4Lg_I
Carbon filter RO water
https://youtu.be/mJrgtjNafQw
Hemoperfusion
https://youtu.be/UkbBm8rm9Ww
AV fistula or Dialysis fistula
https://youtu.be/uDbyfqCkCbo
Dialysis MCQ
https://youtu.be/zmOj0BL6jVY
AVF cannulation
https://youtu.be/PyqMcHA07zY
Complications of AV fistula
https://youtu.be/a_CXIvuOO_s
Blood clotting during Dialysis
https://youtu.be/9hYNepiO2o8
Muscle crapms
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Hepatitis C
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Dialysis procedure
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Hypotension
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Heparin free dialysis
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Plasmapheresis
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Isolated ultrafiltration
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High flux dialyzer
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Urea and Creatinine
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Practical RO water demo
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Sodium profiling
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Peritoneal Dialysis
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Air embolism
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Dialysate
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How to stop Bleed from fistula
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Dialysis short form
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Dialyzer reprocessing
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Dialysis catheter
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How to set KT/V
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Mircera injection
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Dialysis procedure
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Dialysis in snake bite poison
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Uf profiling
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Heparin dose
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Hyperkalemia
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Change bandages of leaking fistula
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AvF needle
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Polycystic kidney disease
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Nephrotic syndrome
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Diabetic nephropathy
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Hemodialysis permanent access
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Sex and dialysis
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Albumin and dialysis
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If the artery were severed, blood would flow out unimpeded, although the artery wall would contract in an effort to stop the bleeding. After losing >30% of one's blood volume blood pressure would start dropping, and with less pressure the rate of bleeding would go down. At this stage if the blood loss wasn't replaced the person could die. Losing halve to two thirds of one's blood volume is considered to be fatal even if later on blood transfusion is attempted. One's total blood volume at 70ml/kg is estimated to be between 5 to 7 liters, so that makes a blood loss of between 2,5 to 4,7 L.
Using state of the art 3D animation techniques, this video shows the anatomy of the heart. Includes close ups of the superior vena cava, rights and left atrium, the valves, the ventricles and the pulmonary artery.
Please note: this video contains no audio description or captions.
Your heart is an extraordinary machine - enjoy the visual showing you how it works :)
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