renal 5 Flashcards

1
Q

tf most of k is in interceullular fluid

A

T

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2
Q

t/f 2/3 of fluid in body is ecf

A

f it is icf(28l to 14 l)

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3
Q

plasma k when lower than 3.5 meq/l

A

hypokalemia

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4
Q

normal plasma conc

A

3.5-5 meq/l

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5
Q

what is the effect on the right

A

low k outside

hyperpolarized and hard to get to threshold

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6
Q

symptoms of the curve on right

A

increased K on outside

very excitable

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7
Q

det resting potential

A

k out

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8
Q

after a meal plsma k increases stim k uptake thru

A

na/ k atpase

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9
Q

insuline and epeniephrine

A

inc k uptake by inc. na k atpase turnover rate

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10
Q

hyperkalemia

A

caused by insulin deficiency and beta antagonist

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11
Q

epinephrine bind to – to inc na/k atpase turnover rate and k is brought into the cell

A

beta receptor

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12
Q

treatment for hyperkalema

A

b agonist and insulin

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13
Q

2 factors inc na/k atpase pump

so that k can be absorbed in tissue cells

A

plasma k

insulin and epinephrine

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14
Q

tf after plasma K inc after a meal it immediately get translocated in a tissue cell and then immediately the plasma k level goes down to normal

A

F the plasma k level stays elvated to signal kidney to get rid of K by having more pumps activated

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15
Q

tf after k accumulates in tisses cells after intestinal absorption there is fast renal excretion

A

F

renal excretion is very slow (little by little goes ijnto urine)

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16
Q

plasma k

and aldosterone

A

signal excretion k in urine

17
Q

tf after K is absorbed in the intestines it immediately stays in the ECF

A

F

ECF doesnt want to saturate and it get transferred to Tissues