ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 27, Problem 11RAC
Summary Introduction
Introduction:
The respiratory system helps in altering the acid-base balance of the body by changing the rate of breathing or exhaling the excesses of carbon dioxide from the system. That helps in raising the pH of the body.
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During a severe bout of pneumonia, Eduardo had difficulties breathing. His PaCO2 was elevated and he became acidotic. Describe how CO2 travels from the tissues to the lungs to be expelled from the body. In doing so, describe the various forms that CO2 takes along the way. Finally, describe how CO2 levels affect blood pH.
A patient is hyperventilating. The "blowing off" of excessive carbon
dioxide causes a decrease in blood H+ concentration. How can the
carbonic acid buffering system function to correct this imbalance?
CO2 + H2O → H2CO3 → H* + HCO3
O H2CO3 dissociates to form more H+ and raise pH.
O HCO3- binds with H+ to form H2CO3 and raise pH.
O H2CO3 dissociates to form more H+ and lower pH.
O HCO3- binds with H+ to form H2CO3 and lower pH.
O none of the above
True or False: A decrease of plasma pH along with a decrease of plasma [CO2] is an
indicator of respiratory acidosis.
True
False
Chapter 27 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 27.1 - What are the two major fluid compartments of the...Ch. 27.1 - Prob. 2AYPCh. 27.1 - Prob. 3AYPCh. 27.1 - What factors contribute to edema?Ch. 27.2 - Prob. 5AYPCh. 27.2 - Prob. 6AYPCh. 27.2 - Prob. 7AYPCh. 27.2 - Prob. 8AYPCh. 27.2 - Prob. 9AYPCh. 27.2 - Prob. 10AYP
Ch. 27.2 - Prob. 11AYPCh. 27.2 - What effect does atrial natriuretic hormone (ANH)...Ch. 27.2 - Prob. 13AYPCh. 27.3 - Prob. 14AYPCh. 27.3 - What characteristic of the plasma membrane is...Ch. 27.4 - Prob. 16AYPCh. 27.4 - Prob. 17AYPCh. 27.4 - Prob. 18AYPCh. 27.4 - Prob. 19AYPCh. 27.4 - Prob. 20AYPCh. 27.4 - Prob. 21AYPCh. 27.4 - Prob. 22AYPCh. 27.4 - What effect does an increase or a decrease in...Ch. 27.4 - Prob. 24AYPCh. 27.4 - Prob. 25AYPCh. 27.4 - Describe the effects of hypocalcemia and...Ch. 27.4 - Prob. 27AYPCh. 27.4 - Prob. 28AYPCh. 27.4 - Prob. 29AYPCh. 27.4 - Prob. 30AYPCh. 27.4 - Prob. 31AYPCh. 27.4 - Prob. 32AYPCh. 27.4 - Prob. 33AYPCh. 27.4 - Prob. 34AYPCh. 27.4 - Prob. 35AYPCh. 27.5 - Prob. 36AYPCh. 27.5 - Prob. 37AYPCh. 27.5 - What ore the three major mechanismsthat regulate...Ch. 27.5 - Compare the capacity and rate at which the...Ch. 27.5 - Prob. 40AYPCh. 27.5 - Name the three buffer systems of the body. Which...Ch. 27.5 - Prob. 42AYPCh. 27.5 - Prob. 43AYPCh. 27.5 - Prob. 44AYPCh. 27.5 - Prob. 45AYPCh. 27.5 - Prob. 46AYPCh. 27.5 - Prob. 47AYPCh. 27.5 - What is alkalosis? What are the two types, and...Ch. 27 - Prob. 1RACCh. 27 - Prob. 2RACCh. 27 - Prob. 3RACCh. 27 - Prob. 4RACCh. 27 - Prob. 5RACCh. 27 - Prob. 6RACCh. 27 - A decrease in extracellular K+ a. produces...Ch. 27 - Calcium ion concentration in the blood decreases...Ch. 27 - Prob. 9RACCh. 27 - Prob. 10RACCh. 27 - Prob. 11RACCh. 27 - Prob. 12RACCh. 27 - Prob. 13RACCh. 27 - Prob. 14RACCh. 27 - Prob. 15RACCh. 27 - Prob. 16RACCh. 27 - Prob. 1CTCh. 27 - A patient suffering from a tumor in the...Ch. 27 - Acetazolamide is a diuretic that blocksthe...Ch. 27 - As part of a physiology experiment, an anatomy and...Ch. 27 - Prob. 5CT
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- In the lungs, the main factor in boosting the tendency of hemoglobin to bind with and hold oxygen is ___. a. temperature c. acidity (pH) b. the amount of O2 relative to the amount of CO2 in plasma c. acidity(pH) d. all are equally importantarrow_forwardblood ph varies between 7.35 and 7.45, with a target value of 7.4. if someone's blood ph begins to decrease, chemoreceptors detect this change and send the information to the brain the brain analyzes the input and sends out a command to the respiratory muscles causing breathing rate to increases, which reduces carbon dioxide levels and thereby increases the ph of ther blood. name the body part, values, or actions in this specific scenario involving ph Normal range Set point Stimulus Sensor integrsting center Effector Responsearrow_forwardIn compensating for metabolic acidosis, the body will slow down the rate of conversion of ammonia to urea excrete more bicarbonate ions increase the respiratory rate decrease the respiratory ratearrow_forward
- Which of the following is associated with elevated (above normal range) PaCO2 levels? O A decrease in carbonic acid levels O A decrease in bicarbonate levels O All of the answers apply O An increase in oxygen levles O A decrease in the blood pHarrow_forwardtoo much carbon dioxide in the blood causes it to become acidic. What is directly responsible for the drop in PH? Accumulation of CO2, accumulation of H+, accumulation of HCO3-.arrow_forwardThe pH is High; Low O Low; High in the lungs and in the muscles. High in the lungs but there is no oxygen in the muscles Equal in both the lungs and the musclesarrow_forward
- Decrease in bicarbonate concentration and decrease of blood pH below 7.35 metabolic acidosis metabolic alkalosis respiratory acidosis respiratory alkalosisarrow_forwardIn a person who suffers acidosis, the way to counteract the condition is by: Drink a large amont of water Slow Breathing Inhale a greater amount of CO2 than normal Stop breathing Fast and deep breathingarrow_forwardDecrease in partial pressure of carbon dioxide and increase in blood pH above 7.45? metabolic acidosis metabolic alkalosis respiratory acidosis respiratory alkalosisarrow_forward
- need helparrow_forwardIncrease in bicarbonate concentration and increase in blood pH above 7.45 metabolic acidosis metabolic alkalosis respiratory acidosis respiratory alkalosisarrow_forwardIn cardiac arrest H2CO3 levels rise very quickly; bicarbonate levels drop. What happens to pH? Why does this happen and how?arrow_forward
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