Acid Base Lab - Melissa Reyes UFID: 6786-5269 March 30,...

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Melissa Reyes UFID: 6786-5269 March 30, 2010 Acid/Base Lab Introduction Blood normally has a pH range of around 7.38 and 7.42. The two systems that regulate blood pH are the respiratory, led by the lungs, and the renal, led by the kidneys. One immediate line of defense is the buffering capability of the bicarbonate ion. The lungs regulate the concentration of carbon dioxide, while the kidneys regulate the concentration of the bicarbonate and hydrogen ions. Acidosis occurs when there is an increase of acidity in the blood, making the pH fall below 7.35. Alkalosis occurs when there is a decrease of acidity in the blood, making the pH fall above 7.45. Shifts in blood pH occur in both respiratory and metabolic instances. Respiratory disturbances occur when the concentration of carbon dioxide changes. An increase of carbon dioxide causes hypoventilation to occur and acidosis to take place, while a decrease of carbon dioxide causes hyperventilation to occur and alkalosis to take place. Metabolic disturbances occur when there are changes caused by things other than carbon dioxide. For example when there is an increase of lactic acid caused by intense exercise, the blood pH decreases by donating free hydrogen ions. Excessive loss of hydrogen ions causes metabolic alkalosis and the kidneys increase hydrogen ion secretion and bicarbonate reabsorption. Excessive gain of hydrogen ions causes metabolic acidosis and the kidneys increase
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This note was uploaded on 11/27/2010 for the course APK 2105 taught by Professor Brooks during the Spring '07 term at University of Florida.

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Acid Base Lab - Melissa Reyes UFID: 6786-5269 March 30,...

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