Disorders of Na+ and H2O Balance Flashcards

1
Q

there are two reasons that the concentration of sodium drops, what are they?

A

either there is too little sodium in the ECF or there is too much water

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2
Q

the excessive loss of sodium is often related to what?

A

renal problems

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3
Q

kidneys preserve sodium through the use of what?

A

aldosterone

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4
Q

failure to preserve sodium in the kidneys may indicate what?

A

renal impairment or adrenal insufficiency or from diuretic use

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5
Q

when a pt is dehydrated should they drink water or a solution with electrolytes?

A

solution with electrolytes

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6
Q

how can blood sodium be diluted?

A

when too much fluid moves to or stays in the vascular space

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7
Q

when water is retained, what is at fault?

A

the kidneys

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8
Q

what is Syndrome of Inappropriate ADH secretion (SIADH)?

A

sometimes the high ADH levels are through inappropriate secretion - mixed up messages in the body

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9
Q

what medication class can cause water retention?

A

antipsychotic meds

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10
Q

what happens where there is too LITTLE ECF sodium?

A
  • not enough intake
  • too much sodium loss
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11
Q

what happens where there is too MUCH ECF sodium?

A
  • osmotic pull
  • water retention
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