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  2. Pathophysiology of hypertension - Wikipedia

    en.wikipedia.org/.../Pathophysiology_of_hypertension

    A diagram explaining factors affecting arterial pressure. Pathophysiology is a study which explains the function of the body as it relates to diseases and conditions. The pathophysiology of hypertension is an area which attempts to explain mechanistically the causes of hypertension, which is a chronic disease characterized by elevation of blood pressure.

  3. Hypertension: A Guide to Causes, Risk Factors ... - AOL

    www.aol.com/hypertension-guide-causes-risk...

    There are many different causes of high blood pressure, but often one single cause isn’t found. When this happens, it’s known as essential hypertension or primary hypertension.

  4. T wave - Wikipedia

    en.wikipedia.org/wiki/T_wave

    The last half of the T wave is referred to as the relative refractory period or vulnerable period. The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the T peak –T end interval. [1] In most leads, the T wave ...

  5. Hs and Ts - Wikipedia

    en.wikipedia.org/wiki/Hs_and_Ts

    The electrocardiogram will show tall, peaked T waves (often larger than the R wave) or can degenerate into a sine wave as the QRS complex widens. Immediate initial therapy is the administration of calcium, either as calcium gluconate or calcium chloride. This stabilizes the electrochemical potential of cardiac myocytes, thereby preventing the ...

  6. Hypertension - Wikipedia

    en.wikipedia.org/wiki/Hypertension

    Hypertension, also known as high blood pressure, is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. [11] High blood pressure usually does not cause symptoms itself. [1]

  7. Blood pressure - Wikipedia

    en.wikipedia.org/wiki/Blood_pressure

    The macula densa causes an increase in Na + reabsorption, which causes water to follow in via osmosis and leads to an ultimate increase in plasma volume. Further, the macula densa releases adenosine which causes constriction of the afferent arterioles. At the same time, the juxtaglomerular cells sense the decrease in blood pressure and release ...

  8. Management of hypertension - Wikipedia

    en.wikipedia.org/wiki/Management_of_hypertension

    Guidelines for treating resistant hypertension have been published in the UK [45] and US. [46] It has been proposed that a proportion of resistant hypertension may be the result of chronic high activity of the autonomic nervous system, known as "neurogenic hypertension". [47] Low adherence to treatment is an important cause of resistant ...

  9. Pressure overload - Wikipedia

    en.wikipedia.org/wiki/Pressure_overload

    Other signs provide evidence for specific causes of pressure overload. Hypertension is diagnosed by sphygmomanometry. A narrow pulse pressure is a sign of aortic stenosis. The chest x-ray may show pulmonary hyperaemia in the case of pulmonary hypertension, and pulmonary oligemia in pulmonary stenosis.