Degree KBF1 Flashcards on Potassium Balance, created by Hannah Tribe on 27/05/2014.
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Created by Hannah Tribe
about 10 years ago
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Created by Hannah Tribe
about 10 years ago
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In which foods can potassium be found?
Where is concentration of potassium highest, intra or extra cellularly?
What is meant by acute regulation of K+?
What is meant by chronic regulation of K+?
What are the 3 functions of K+?
How is the intracellular K+ mostly maintained?
Name 3 hormones that help regulate K+.
Which equation is used to calculate the membrane potential based on intra and extra cellular concentrations of an ion?
What is the boundary for hyperkalaemia?
What is the boundary for hypokalaemia?
What is particularly affected by changes in plasma K+ concentration?
How is this changed in hyperkalaemia?
How is it changed in hypokalaemia?
Where can this be particularly dangerous?
What can cause hypokalaemia? (4)
What is the hormonal effect of hypokalaemia?
What causes hyperkalaemia? (3)
When does hyperkalaemia become particularly dangerous?
What can be given to stimulate K+ influx back into cells in this case?
What should also be given and why?
In treatments for CVD, what are the associated risks?
In the kidneys, ___ and ____ are filtered freely, then ___________. The ________ of this in the __ __ __ is always more or less constant.
What mechanisms allow K+ transport in the PCT? (3)
What mechanisms allow transport of K+ in the thick ascending limb of the Loop of Henle? (3)
What mechanisms allow transport of K+ in the DCT? (3)
How is secretion of K+ back into the tubule encouraged in the DCT?
What are the effects of aldosterone on K+ secretion?
What stimulates secretion of aldosterone?
What else can enhance K+ secretion?
What is thought to be the mechanism in place in severe hypokalaemia?
What effect does the plasma pH have on K+?
How does Addison's disease cause imbalance of Na+/K+?
What is Conn's syndrome?
How does this disrupt K+ balance?
