14 terms

A&P: Lab 47

STUDY
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Acid
Substance that release H+ in solution (body fluids).
Base
Hydroxyl ion (OH-) or bicarbonate ion (HCO3-) substance that binds to H+.
Strong Acid
Completely dissociates in solution, releasing all of its hydrogen ions and thus lowering solution pH level.
Weak Acid
Does not release all of it's hydrogen ions in a solution.
Strong Base
Strong tendency to bind H+ and having a lesser effect on solution pH.
Weak Base
Bind less of H+, having lesser effect on solution pH.
PCO2 Levels
40-45 mm Hg
Bicarbonate Levels
22-30 mmol/L
pH Levels
7.35-7.45
In Order to Maintain Homeostasis..
Utilize both chemical and physiological buffering systems.
Formula for Acid Base Balance
H₂O+CO₂⇌H₂CO₃⇌H⁺+HCO₃-
Acidosis
pH falls below 7.35.
Alkalosis
pH rise over 7.45.
Respiratory Acidosis
Hypoventilation, decrease in blood that include: airway obstruction, depression of the respiratory center in the brain stem, lung disease, and drug overdose. Secretion of H+ into urine causes an increase in plasma pH.