# Exercise 10: Acid/Base Balance

Topics: PH, Carbon dioxide, Blood Pages: 5 (1378 words) Published: May 24, 2011
Exercise 10: Acid/Base Balance Worksheet
Assignment Due: Week 1 GRADE 94

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 type your Name and Student ID Number here: Paul M. Nannery 4006529

Respiratory Acidosis and Alkalosis
Activity 1: Normal Breathing

1.At 20 seconds, pH = 7.39
2.At 40 seconds, pH = 7.39
3.At 60 seconds, pH = 7.39
4.Did the pH level of the blood change at all during normal breathing? If so, how? The PH level did not change at all. 5.Was the pH level always within the “normal” range for the human body? The PH Level was always within the normal level

6.Did the PCO2 level change during the course of normal breathing? If so, how? The Pco2 did not change at all.
Activity 2a: Hyperventilation – Run 1

1.At 20 seconds, pH = 7.44
2.At 40 seconds, pH = 7.55
3.At 60 seconds, pH = 7.66
4.Maximum pH = 7.66
5.Did the pH level of the blood change at all during this run? If so, how? Yes the ph of the blood rose as time went on.
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 level was above normal. From 20 sec on and it was alkalosis. 7.Did the PCO2 level change during the curse of this run? If so, how? The Pco2 dropped as the test went on

8.If you observed an acid/base imbalance during this run, how would you expect to renal system to compensate for this condition? It would compensate by controlling the output of acids, basis or carbon dioxide from the body within urine. You would expect the renal system to compensate for alkalosis by retaining [H+] and excreting bicarbonate in order to lower the blood pH levels back to within the normal range. 9.How did the hyperventilation trace differ from the trace for the normal breathing? Did the tidal volumes change? The trace was closer together and the tidal volumes increased. 10.What might cause a person to hyperventilate?

Hyperventilation can be caused by anxiety or even self-induced. 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. After the 20sec mark the trace flatted out for about 10 sec the returned to normal. Activity 3: Rebreathing

1.At 20 seconds, pH = 7.35
2.At 40 seconds, pH = 7.34
3.At 60 seconds, pH = 7.24
4.Did the pH level of the blood change at all during this run? If so, how? The PH level slowly droped.
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? The ph was below normal this is acidosis.

6.Did the PCO2 level change during the course of this run? If so, how? The Pc02 level incresssed.
7.If you observed an acid/base imbalance during this run, how would you expect the renal system to compensate for this condition? It would compensate by controlling the output of acids, basis or carbon dioxide from the body within urine. You would expect the renal system to compensate for acidosis by excreting [H+] and retaining bicarbonate in order to raise the blood pH levels back to within normal range. 8.How did the rebreathing trace differ from the trace for normal breathing? Did the tidal volumes change? The wave wad narrower and taller Then normal.

9.Give examples of respiratory problems that would result in pH and PCO2 patterns similar to what you observed during rebreathing? Asthma
Renal System Compensation
Activity 4: Renal Response to Normal Acid/Base Balance

1.At normal PCO2 and pH...