Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. Respiratory compensation for metabolic acidosis consists of hypoventilation.
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Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 25, Problem 16b
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. Renal compensation for acid-base disturbances begins within minutes, whereas respiratory compensation begins within several hours.
Verified step by step guidance1
Understand the two types of compensation mechanisms for acid-base disturbances: respiratory compensation and renal compensation. Respiratory compensation involves changes in breathing rate to adjust CO2 levels, while renal compensation involves the kidneys adjusting bicarbonate (HCO3⁻) and hydrogen ion (H⁺) levels.
Recall the timeframes for each mechanism. Respiratory compensation is faster because it involves immediate changes in breathing patterns, typically beginning within minutes. Renal compensation, on the other hand, is slower because it requires physiological changes in kidney function, which can take hours to days.
Evaluate the statement: 'Renal compensation for acid-base disturbances begins within minutes, whereas respiratory compensation begins within several hours.' Based on the timeframes, this statement is incorrect because it reverses the timing of the two mechanisms.
Correct the false statement: 'Respiratory compensation for acid-base disturbances begins within minutes, whereas renal compensation begins within several hours to days.'
Review the corrected statement to ensure it aligns with the physiological processes of acid-base regulation and the respective timeframes for respiratory and renal compensation.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Acid-Base Balance
Acid-base balance refers to the mechanisms that maintain the pH of body fluids within a narrow range, crucial for normal physiological functions. The body utilizes buffers, respiratory control of carbon dioxide, and renal regulation of bicarbonate and hydrogen ions to achieve this balance. Understanding these processes is essential for evaluating how the body responds to disturbances in pH.
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Renal Compensation
Renal compensation involves the kidneys adjusting the excretion or reabsorption of bicarbonate and hydrogen ions to correct acid-base imbalances. This process can take hours to days to fully engage, making it a slower response compared to respiratory compensation. Recognizing the timeline and mechanisms of renal compensation is vital for understanding how the body stabilizes pH over time.
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Respiratory Compensation
Respiratory compensation is the body's immediate response to acid-base disturbances, primarily through changes in breathing rate and depth to regulate carbon dioxide levels. This mechanism can begin within minutes, allowing for rapid adjustments to pH. Understanding the speed and function of respiratory compensation is key to grasping how the body quickly reacts to maintain acid-base homeostasis.
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Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. Renal compensation for metabolic alkalosis consists of reabsorption of hydrogen ions and secretion of bicarbonate ions.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. You would expect to find an elevated Pco₂ in arterial blood gas analysis of a patient with respiratory acidosis.
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Textbook Question
Which of the following mechanisms is/are used by the kidneys to regulate the pH of the blood? Circle all that apply.
a. Hydrogen ions are secreted from the proximal and distal tubules and the collecting system.
b. Hydrogen ions are reabsorbed from the nephron loop.
c. New bicarbonate ions are formed from glutamine and carbon dioxide in the interstitial fluid that enters proximal tubule cells.
d. Bicarbonate ions can be secreted.
e. Bicarbonate ions are reabsorbed directly from the filtrate.
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Textbook Question
An increase in ventilation ________ the pH of the blood due to a/an ________ of carbon dioxide in the blood. A decrease in ventilation ________ the pH of the blood due to a/an ________ of carbon dioxide in the blood.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. Respiratory acidosis is caused by hypoventilation.
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