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By: Administrator, Views: 10849

Shock is a life-threatening condition in which delivery of oxygen to the organs is low, causing organ damage and sometimes death. Blood pressure is usually low.

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Introduction to Sickle Cell Anemia

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Sickle cell anemia (sickle cell disease) is a disorder of the blood caused by an inherited abnormal hemoglobin (the oxygen-carrying protein within the red blood cells). The abnormal hemoglobin causes distorted (sickled appearing under a microscope) red blood cells.

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Interview with an Anorexic Woman (Part 1 of 2)

By: Administrator, Views: 11062

Anorexia is a psychological disorder that affects an individual’s relationship with food and causes an unrealistic view of one’s body image. It affects both men and women of all ages but is more prevalent in women, with 0.3 – 1.0% of all women being affected. The age of onset tends to be mi...

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Blood Pressure Measurement

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How nurses check a patient's blood pressure. Blood Pressure The pressure exerted by the blood on the walls of the arteries. Higher (systolic) number: the pressure while the heart contracts. Lower (diastolic) number: the pressure when the heart relaxes between beats. Measured by a sphygmoma...

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Dissociative Disorders (Part 3)

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Dissociative disorders (DD) are conditions that involve disruptions or breakdowns of memory, awareness, identity, or perception. People with dissociative disorders use dissociation as a defense mechanism, pathologically and involuntarily. Some dissociative disorders are triggered by psychological...

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Second Stage of Labor and Delivery

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During labor forceful contractions move the fetus down the birth canal and expel it from the uterus. Signs and symptoms that labor is about to start can occur from hours to weeks before the actual onset of labor. Braxton Hicks contractions Irregular contractions that begin in the second trim...

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Introduction to Pre-eclampsia

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Pre-eclampsia (PE) is a disorder of pregnancy characterized by the onset of high blood pressure and often a significant amount of protein in the urine. When it arises, the condition begins after 20 weeks of pregnancy. In severe disease there may be red blood cell breakdown, a low blood platelet c...

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Introduction to Heart Attacks

By: Administrator, Views: 11141

A heart attack occurs when an artery supplying your heart with blood and oxygen becomes blocked. Fatty deposits build up over time, forming plaques in your heart's arteries. If a plaque ruptures, a blood clot can form and block your arteries, causing a heart attack.

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Lung Sounds Animation (3 of 5)

By: Administrator, Views: 348

Respiratory rate is regulated by the respiratory center located in the medulla oblongata. Respiratory rates for some different age groups: Newborn 30 – 80/min 1st year 20 – 40/min 5th year 20 – 25/min 15th year 15 – 20/min Adult 12 – 20/min

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