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Physiology Lab

Acid-Base Balance

QuestionAnswer
Normal pH 7.35-7.45
Acidosis pH 7.35 or less
Alkalosis pH 7.45 or more
Strong Base Binds to H+ and raises pH
Weak Base Binds to less H+ and slightly raises pH
Strong Acid Completely dissociates; releases all its H+ ions and lowers pH
Weak Acid Partially dissociates; releases some of its H+ ions and slightly lowers pH
Chemical Buffering A mix of weakk acids and weak bases; helps regulate pH by H+ binding; concentration rises or falls by H+ concentration levels
Physiological Buffering Renal and respiratory systemsl helps regulate pH by controlling acid, base, and CO2 output
Respiratory Acidosis Too little CO2 in blood; hyperventilation
Respiratory Alkalosis Too much CO2 in blood; hypoventilation
Metabolic Acidosis Kidneys produce too much acid (H+); excreted in urine
Metabolic Alkalosis Elevated increase in serum bicarbonate (HCO3); retains H+
Increase in CO2: effects on kidneys and pH and H+ levels? Increases H+; decreases HCO3; decreases pH; kidneys excrete more H+ in urine
Decrease in CO2: effects on kidneys and pH and H+ levels? Decreases H+; increses HCO3; increases pH; kidneys retain H+ so H+ levels in urine decrease
Created by: dlnymarie
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