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PSL301 > Renal: Potassium > Flashcards

Renal: Potassium Flashcards

(51 cards)

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1
Q

how much potassium goes through the kidney in a day

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2
Q

where is most potassium found

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3
Q

how much potassium is excreted in urine

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4
Q

where do you get potassium from

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5
Q

how much potassium is found in ecf

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6
Q

how much potassium is found in icf

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7
Q

why is most k found in icf`

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8
Q

how does cell interior stay negative? why does this happen?

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9
Q

what determines cell transmembrane potential gradient? what does this mean?

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10
Q

why is resting membrane potential important?

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11
Q

how does the b2 catecholamine receptor promote cell k uptake? describe this process

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12
Q

how does insulin promote cell k uptake?

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13
Q

what are two methods for k uptake?

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14
Q

how does metabolic acidosis impact k balance? pathway explain

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15
Q

why does hypokalemia occur

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16
Q

why does hyperkalemia occur

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17
Q

when is the cell hyperpolarized

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18
Q

when is the cell hypopolarized

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19
Q

what happens to muscles and heart rate with hypokalemia

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20
Q

what happens to muscle and heart with hyperkalemia

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21
Q

why can hyperkalemia lead to asystole

22
Q

what happens when you ingest a high potassium meal

23
Q

why is eating glucose with high amounts of potassium important

24
Q

what happens wrt potassium when you exercise

25
how does potassium impact blood flow
26
what role does adreniline play wrt potassium distribution
27
where is the nephron is potassium reabsorbed
28
which sodium hydrogen transporter is most important in the PT
29
how does potassium get transported across the PT
30
what is solvent drag
31
what is paracellular diffusion
32
how is potassium absorbed in the TAL
33
how much potassium is in the fluid leaving the TAL
34
how does potassium go across the TAL
35
where is all of the potassium in urine secreted
36
what is the transport protein in the CD
37
what k channels are in the CD
38
what lets k be secreted in the CD
39
where is the principal cell? how is k secreted in ?
40
where is the intercalated cell? how does is lead to k secretion?
41
how does sodium delivery regulate potassium secretion>
42
how do tubule flow rates regulate k secretion?
43
how does lumen negativity regulate k secretion?
44
how does aldosterone regulate k secretion?
45
what stimulates vs inhibits aldosterone? why?
46
how does aldosterone lead to k secretion
47
what does aldosterone do to the collecting duct
48
what happens in a state of low ecf volume? why?
49
what happens in a state of ecf expansion? why?
50
what is the pathway to excrete potassium after youve eaten
51
how is potassium excreted when you are fasting

PSL301 (32 decks)

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