Exercise 10: Acid/Base Balance Worksheet

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Exercise 10: Acid/Base Balance Worksheet
Assignment Due: Week 1

Student instructions: Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus.

Please make sure that your answers are typed in RED.

Please type your Bobby Rivera and 4023166:

Respiratory Acidosis and Alkalosis
Activity 1: Normal Breathing

1. At 20 seconds, pH = 7.40
2. At 40 seconds, pH = 7.40
3. At 60 seconds, pH = 7.40
4. Did the pH level of the blood change at all during normal breathing? If so, how? No
5. Was the pH level always within the “normal” range for the human body? Yes
6. Did the PCO2 level change during the course of normal breathing? If so, how? No

Activity 2a: Hyperventilation – Run 1

1. At 20 seconds, pH = 7.46
2. At 40 seconds, pH = 7.55
3. At 60 seconds, pH = 7.68
4. Maximum pH = 7.68
5. Did the pH level of the blood change at all during this run? If so, how? The Ph levels were raised. 6. Was the pH level always within the “normal” range for the human body? If not, when was the pH value outside of the normal range, and what acid/base imbalance did this pH value indicate? The Ph was outside the normal range when it went above 7.45 which caused respiratory alkalosis 7. Did the PCO2 level change during the curse of this run? If so, how? The 8. If you observed an acid/base imbalance during this run, how would you expect to renal system to compensate for this condition? 9. How did the hyperventilation trace differ from the trace for the normal breathing? The respiratory volumes went above and below the listed normal breathing. Normal breathing was between 2.5-3.0 liters and hyperventilation was between 1.0-4.0 liters. Did the tidal volumes change? Yes 10. What might cause a person to hyperventilate? Fever or anxiety

Activity 2b: Hyperventilation – Run 2

1. What happened to the trace after the 20-second mark when you stopped the hyperventilation? Did the breathing return to normal immediately? Explain your observation. The trace decreased some and then flattened out. It was at 8 seconds when normal breathing occurred

Activity 3: Rebreathing

1. At 20 seconds, pH = 7.34
2. At 40 seconds, pH = 7.29
3. At 60 seconds, pH = 7.23
4. Did the pH level of the blood change at all during this run? If so, how? The minimum pH level decreased to the point of respiratory acidosis. 5. Was the pH level always within the “normal” range for the human body? If not, when was the pH value outside of the normal range, and what acid/base imbalance did this pH value indicate? pH value fell below normal when it was below 7.35 this value represented respiratory acidosis. 6. Did the PCO2 level change during the course of this run? If so, how? Maximum PCO2 raised as time went by. 7. If you observed an acid/base imbalance during this run, how would you expect the renal system to compensate for this condition? Hyperventilation causes a decrease in PCO2. The Generation of HCO-3 causes a rise in plasm pH, secretion of H+ into urine will cause an increase in plasma pH. 8. How did the rebreathing trace differ from the trace for normal breathing? Did the tidal volumes change? The trace increased and decreased slightly from normal breathing . The range went from 2.5-3 liters to 2.3.25 liters. YES for tidal volume change 9. Give examples of respiratory problems that would result in pH and PCO2 patterns similar to what you observed during rebreathing? Airway obstruction, depression of the respiratory canter in the brain stem lung disease and drug overdose.

Renal System Compensation
Activity 4: Renal Response to Normal Acid/Base Balance

1. At normal PCO2 and pH levels, what level of H+ was present in the urine? Normal Levels 2. What level of [HCO3-] was present in the urine?...
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