Complex Adult Health Notes.docx - Complex Adult Health...

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Complex Adult Health Notes Sept. 11, 2019: Acid-Base Balance and Arterial Blood Gases Easy key… “ROME” -Respiratory (Opposite) -Alkalosis: high pH, low pCO2 -Acidosis: low pH, high pCO2 -Metabolic (Equal) -Alkalosis: high pH, high HCO3 -Acidosis: low pH, low HCO3 Range of pH -measure of H+ ion concentration -blood is slight alkaline; pH = 7.35 – 7.45 -lower than 6.8 = death -higher than 7.8 = death Normal Blood Gas Values -pH= 7.35-7.45 -PaCO2= 35-45 -Bicarb (HCO3-)= 22-26 -PaO2: 80-100 Respiratory Acidosis -carbonic acid excess cause by; hypoventilation, respiratory failure -compensation; kidneys conserve HCO3- and secret H+ into urine Respiratory Alkalosis -carbonic acid deficit caused by; hypoxemia from acute pulmonary disorders, hyperventilation -compensation; rarely occurs when acute, can buffer with bicarbonate shift Metabolic Acidosis -excess carbonic acid or base bicarb deficit cause by; -ketoacidosis, lactic acid accumulation (shock), sever kidney disease -compensatory mechanisms; -inc. CO2 excretion by lungs -kussmaul respirations (deep and rapid) -kidneys excrete acid Metabolic Alkalosis -base bicarb excess caused by; -prolonged vomiting or gastric suction -gain of HCO3-

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