In a person with respiratory acidosis, HCO3- is actively secreted into the urine by the tubular cells.
Indicate whether the statement is true or false.
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Question 2) A stimulus for increased aldosterone secretion is increased plasma levels of K+.
Indicate whether the statement is true or false.
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Question 3) A stimulus for increased aldosterone secretion is decreased plasma K+ concentration.
Indicate whether the statement is true or false.
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Question 4) Stimuli that cause increased Na+ reabsorption decrease K+ secretion.
Indicate whether the statement is true or false.
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Question 5) A substance that interferes with the active transport of Na+ in the cortical collecting ducts will also interfere with K+ reabsorption.
Indicate whether the statement is true or false.
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Question 6) Ingestion of large amounts of K+ triggers reflexes to limit the amount of K+ reabsorbed by the cortical collecting ducts.
Indicate whether the statement is true or false.
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Question 7) Cardiac arrhythmias may be a clinical sign of either K+ depletion or excess.
Indicate whether the statement is true or false.
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Question 8) Both Na+ and Cl- freely filter from the glomerular capillaries into Bowman's space, with no secretion along the renal tubule.
Indicate whether the statement is true or false.
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Question 9) In the proximal convoluted tubule the reabsorption of Na+ is unaffected by the presence or absence of other substances such as glucose or H+ in the filtrate.
Indicate whether the statement is true or false.
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Question 10) Unlike Na+, K+ is secreted by the nephron tubules.
Indicate whether the statement is true or false.
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