[PhysioEX Chapter 10 exercise 2] PEX-10-02

in #physioex7 years ago

Solved by ramonistry

Exercise 10: Acid-Base Balance: Activity 2: Rebreathing Lab Report
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: c. less than 7.35.

  2. Carbon dioxide and water form
    You correctly answered: a. carbonic acid (a weak acid).

  3. Which of the following is true of respiratory acidosis?
    You correctly answered: c. The amount of carbon dioxide in the blood is greater than normal.

  4. Rebreathing
    You correctly answered: b. is exemplified by breathing into a paper bag.

Experiment Results
Predict Question:
Predict Question: What do you think will happen to the pH and PCO2 levels during rebreathing?
Your answer : b. pH will decrease and PCO2 will increase.

Stop & Think Questions:
Which of the following can cause respiratory acidosis?
You correctly answered: c. airway obstruction

Experiment Data:
Condition Min PCO2 Max PCO2 Min pH Max pH
Normal 40 40 7.39 7.39
Rebreathing 40 54.88 7.22 7.42

Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.

  1. Rebreathing simulates
    You correctly answered: a. hypoventilation and respiratory acidosis.

  2. Hypoventilation results in
    You correctly answered: c. an accumulation of carbon dioxide in the blood.

  3. The renal system can compensate for respiratory acidosis by
    You correctly answered: b. excreting H+ and retaining bicarbonate ion.

  4. Respiratory acidosis can be caused by all of the following except
    You correctly answered: d. 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:
    pH decreased and P co2 increased as predicted.

  2. Describe some possible causes of respiratory acidosis.
    Your answer:
    Lung diseases, obstructed airway.

  3. Explain how the renal system would compensate for respiratory acidosis.
    Your answer:
    Renal system will excrete hydrogen ion to increase pH.

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