Podcast
Questions and Answers
What are the two sources of H+ in the body?
What are the two sources of H+ in the body?
- Anaerobic metabolism and uncontrolled diabetes mellitus
- Carbohydrate metabolism and renal tubules
- Lipid metabolism and respiratory system
- Protein diet and intermediary metabolism (correct)
Which mechanism is responsible for the rapid buffering of changes in H+ concentration?
Which mechanism is responsible for the rapid buffering of changes in H+ concentration?
- Reduction of carbonic acid by elimination of CO2 through respiratory system
- Increased rate of H+ excretion and bicarbonate reabsorption by renal tubules
- Buffer system by immediate combination of H+ with extracellular and intracellular buffer system (correct)
- Renal excretion of H+ and HCO3
What is the kidney's role in acid base balance?
What is the kidney's role in acid base balance?
- Elimination of CO2 through respiratory system
- Formation of lactic acid from oxidation of carbohydrates
- Production of carbonic acid from CO2
- Increased rate of H+ excretion and bicarbonate reabsorption by renal tubules (correct)
What are the causes and compensation mechanisms for alkalosis?
What are the causes and compensation mechanisms for alkalosis?
What is the primary cause of fixed acids in the body during anaerobic metabolism?
What is the primary cause of fixed acids in the body during anaerobic metabolism?
Flashcards
Sources of H+ in body?
Sources of H+ in body?
Protein diet and intermediary metabolism produce H+.
Rapid H+ buffering?
Rapid H+ buffering?
Buffer systems (extracellular/intracellular) quickly neutralize H+.
Kidney's role in acid-base?
Kidney's role in acid-base?
Kidneys excrete H+ and reabsorb bicarbonate (HCO3).
Causes of Alkalosis?
Causes of Alkalosis?
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Fixed acids in anaerobic?
Fixed acids in anaerobic?
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Study Notes
Sources of H+ in the Body
- Two sources of H+ in the body: metabolic production and respiratory failure (e.g., respiratory acidosis)
Buffering of H+ Concentration
- Rapid buffering of changes in H+ concentration is responsible viaintracellular and extracellular buffering systems
Kidney's Role in Acid-Base Balance
- Kidneys regulate acid-base balance by controlling H+ secretion, bicarbonate reabsorption, and ammonium production
Alkalosis: Causes and Compensation Mechanisms
- Causes of alkalosis: excessive vomiting, ingestion of bases, diuretic use, and hypokalemia
- Compensation mechanisms: respiratory acidosis (via increased PCO2) and metabolic compensation (via decreased bicarbonate levels)
Fixed Acids in Anaerobic Metabolism
- Primary cause of fixed acids in the body during anaerobic metabolism: lactic acid production
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