Physio Ex Exercise 10 Activity 2 PDF

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6/4/2020

PhysioEx Exercise 10 Activity 2

PhysioEx Lab Report Exercise 10: Acid-Base Balance Activity 2: Rebreathing Name: Krystal Cookson Date: 4 June 2020 Session ID: session-0a88c2ec-7654-96c7-ceef-04b3d2e82c9b

Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1 In cases of acidosis, the pH of the blood is You correctly answered: less than 7.35. 2 Carbon dioxide and water form You correctly answered: carbonic acid (a weak acid). 3 Which of the following is true of respiratory acidosis? You correctly answered: The amount of carbon dioxide in the blood is greater than normal. 4 Rebreathing You correctly answered: is exemplified by breathing into a paper bag.

Experiment Results Predict Question 1 Predict Question: What do you think will happen to the pH and P

CO2levels

during

rebreathing? Your answer: pH will decrease and P CO2 will increase. Stop & Think Question 1 Which of the following can cause respiratory acidosis? You correctly answered: airway obstruction. Experiment Data Condition

Max. PCO2 (mm Hg) 40

Min. pH

Max. pH

Normal

Min. PCO2 (mm Hg) 40

7.39

7.39

Rebreathing

40

53.95

7.24

7.42

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PhysioEx Exercise 10 Activity 2

Normal Breathing

Rebreathing

Post-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1 Rebreathing simulates You correctly answered: hypoventilation and respiratory acidosis. 2 Hypoventilation results in You correctly answered: an accumulation of carbon dioxide in the blood. 3 The renal system can compensate for respiratory acidosis by

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You correctly answered: excreting H and retaining bicarbonate ion. 4 Respiratory acidosis can be caused by all of the following except You correctly answered: an anxiety attack.

Review Sheet Results 1 Describe what happened to the pH and the carbon dioxide levels during rebreathing. How well did the results compare with your prediction? Your answer: Min Pco2 stayed the same and the Min pH decreased Max Pco2 and Max pH increased. 2 Describe some possible causes of respiratory acidosis. Your answer: airway obstruction, lung disease, drug overdose. 3 Explain how the renal system would compensate for respiratory acidosis. Your answer: the renal system would compensate for respiratory acidosis by excreting H+ and retaining bicarbonate (HCO3).

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