Physio Ex 10

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Exercise 10: Acid-Base Balance: Activity 1: Hyperventilation Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The fastest compensatory mechanism for maintaining pH homeostasis in the human body is You correctly answered: c. the chemical buffering system. 2. An increase in hydrogen ion concentration would You correctly answered: d. decrease pH. 3. The amount of carbon dioxide in the blood is measured in You correctly answered: b. mm Hg. 4. The reaction of water and carbon dioxide is catalyzed by You correctly answered: a. carbonic anhydrase.

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Experiment Results Predict Question: Predict Question: What do you think will happen to the pH and PCO2 levels with hyperventilation? Your answer : d. pH and PCO2 will increase. Stop & Think Questions: Were the pH and PCO2 in the normal range? You correctly answered: c. Both pH and PCO2 were in the normal range. What was the effect of returning to normal breathing after hyperventilation? You correctly answered: b. The breathing stopped temporarily to retain carbon dioxide. Experiment Data: Condition Normal Hyperventilation Hyperventilation / Normal Min PCO2 40 24.38 30.62 Max PCO2 40 40 40 Min pH 7.41 7.38 7.38 Max pH 7.41 7.6 7.53

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Post-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. 1. Hyperventilation results in You correctly answered: b. respiratory alkalosis. 2. With hyperventilation, the higher peaks on the tracing indicate Your answer: d. elevated carbon dioxide in the blood. Correct answer: a. a larger volume of air. 3. Which of the following is not a potential cause of respiratory alkalosis? You correctly answered: d. emphysema 4. The kidneys can compensate for respiratory alkalosis by You correctly answered: b. retaining H+ and excreting bicarbonate ion.

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Review Sheet Results 1. Describe the normal ranges for pH and carbon dioxide in the blood....
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