QuestionSBA
QuestionChoice
This is incorrect. Insulin stimulates the Na+/K+ ATPase on the surface of cells to uptake more K+. Insulin deficiency therefore results in a loss of this stimulation, reducing cellular K+ uptake and increasing serum K+ levels.
10026458
d
Increased activation of Na+/K+ ATPase
QuestionChoice
This is incorrect. Insulin stimulates the Na+/K+ ATPase on the surface of cells to uptake more K+. Insulin deficiency therefore results in a loss of this stimulation, reducing cellular K+ uptake and increasing serum K+ levels.
10026459
e
None of the above
QuestionChoice
This is incorrect. Insulin affects K+ levels via the Na+/K+ ATPase rather than through the effects of aldosterone. Insulin stimulates the Na+/K+ ATPase on the surface of cells to uptake more K+. Insulin deficiency therefore results in a loss of this stimulation, reducing cellular K+ uptake and increasing serum K+ levels.
10026457
c
Reduced aldosterone levels
QuestionChoice
This is incorrect. Insulin affects K+ levels via the Na+/K+ ATPase rather than through the effects of aldosterone. Insulin stimulates the Na+/K+ ATPase on the surface of cells to uptake more K+. Insulin deficiency therefore results in a loss of this stimulation, reducing cellular K+ uptake and increasing serum K+ levels.
10026456
b
Increased aldosterone levels
QuestionChoice
This is correct. Insulin stimulates the Na+/K+ ATPase on the surface of cells to uptake more K+. Insulin deficiency therefore results in a loss of this stimulation, reducing cellular K+ uptake and increasing serum K+ levels.
10026455
a
Reduced activation of Na+/K+ ATPase
Concept
Chapter
2693
3934
hyperkalaemia
Topic
170
Clinical Chemistry
17689
Which of the following is correct regarding the mechanism by which insulin deficiency causes hyperkalaemia?
a