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ارتفاع ضغط الدم مراحله و اعراضه
ﻳُﻌﺮﻑ ﺿﻐﻂ ﺍﻟﺪّﻡ ﺑﺎﻟﻘﻮّﺓ ﺍﻟﺘﻲ ﻳﺒﺬﻟﻬﺎ ﺍﻟﻘﻠﺐ ﻟﻀﺦّ ﺍﻟﺪّﻡ ﺍﻟﻤُﺤﻤّﻞ ﺑﺎﻷﻛﺴﺠﻴﻦ ﻓﻲ ﺍﻟﺸﺮﺍﻳﻴﻦ، ﻭﻗﻮّﺓ ﺍﻟﺸّﺮﺍﻳﻴﻦ ﺑﻴﻦ ﻧﺒﻀﺎﺕ ﺍﻟﻘﻠﺐ ﺍﻟﻤُﺘﻜﺮﺭﺓ، ﻭﺑﻬﺬﺍ ﻓﺈﻥّ ﻗﺮﺍﺀﺓ ﺿﻐﻂ ﺍﻟﺪّﻡ ﺗﺘﻜﻮّﻥ ﻣﻦ ﺭﻗﻤﻴﻦ ﺃﻭﻟﻬﻤﺎ ﺃﻛﺒﺮ ﻣﻦ ﺍﻟﺜّﺎﻧﻲ، ﻭﺍﻟﻤﻌﺪّﻝ ﺍﻟﻄّﺒﻴﻌﻲ ﻟﻀﻐﻂ ﺍﻟﺪّﻡ ﻫﻮ ﺃﻥ ﻳﻜﻮﻥ .80\120. يعني…