6/4/2020 PhysioEx Exercise 10 Activity 3 PhysioEx Lab Report Exercise 10: Acid-Base Balance Activity 3: Renal Responses to Respiratory Acidosis and Respiratory Alkalosis Name: Date: 4 June 2020 Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1 The renal system compensates for You correctly answered: both respiratory acidosis and respiratory alkalosis. 2 Respiratory alkalosis is characterized by You correctly answered: pH greater than 7.45 and P less than CO2 35 mm Hg. 3 Respiratory acidosis is characterized by You correctly answered: pH less than 7.35 and P greater CO2 than 45 mm Hg. 4 The functional unit of the kidney is the You correctly answered: nephron. Experiment Results Predict Questions 1 Predict Question 1: What eﬀect do you think lowering the P + will have CO2 on [H ] and [HCO ] - 3 in the urine? Your answer: [H ] +will decrease and [HCO ] will 3 increase. 2 Predict Question 2: What eﬀect do you think raising the P + will have CO2 on [H ] and [HCO ] in - 3 the urine? Your answer: [H ] +will increase and [HCO ] will 3 decrease. Stop & Think Questions 1 The condition you just simulated is You correctly answered: respiratory alkalosis caused by hyperventilation. 1/3 6/4/2020 PhysioEx Exercise 10 Activity 3 2 Can the renal system fully compensate for acidosis or alkalosis? You correctly answered: No, neither for respiratory alkalosis nor respiratory acidosis. Experiment Data PCO2 (mm Hg) Blood pH + Urine [H ] in [HCO ] in3Urine 40 7.38 normal 30 7.58 decreased elevated normal 60 7.28 elevated decreased Post-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1 When adjusting the controls, what happens to the blood pH when you lower the P ? CO2 You correctly answered: The pH increases. 2 In uncompensated respiratory alkalosis, the You correctly answered: carbon dioxide levels of the blood are low. 3 What type of breathing results in acidosis? You correctly answered: hypoventilation and rebreathing. 4 With renal compensation for respiratory acidosis, the pH of the urine + You correctly answered: decreased because [H ] increased. Review Sheet Results 1 Describe what happened to the concentration of ions in the urine when the P was CO2 lowered. How well did the results compare with your prediction? Your answer: Based on my prediction the H+ decreased and the HCO3 increased. 2 What condition was simulated when the P wasCOlowered? 2 Your answer: Respiratory alkalosis. 3 Describe what happened to the concentration of ions in the urine when the P was raised. CO2 How well did the results compare with your prediction? 2/3 6/4/2020 PhysioEx Exercise 10 Activity 3 Your answer: Based on my prediction H+ increased and HCO3 decreased. 4 What condition was simulated when the P wasCOraised? 2 Your answer: Respiratory Acidosis. 3/3