Salt and Water Cases Flashcards Preview

Nephrology Board Review > Salt and Water Cases > Flashcards

Flashcards in Salt and Water Cases Deck (6)
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1

when can you see acute symptomatic hyponatremia?

- marathon runners
- water-drinking contests
- fraternity hazing
- raves (MDMA)
- primary polydipsia

2

how does repletion of hypokalemia cause overcorrection of hyponatremia?

- K+ exchanges w/ Na+; moves from intracellular to extracellular space
- also K+ moving intracellularly draws water w/ it from extracellular space

3

how to treat hyponatremia d/t glycine irrigation?

- hypertonic saline or
- HD (will correct hyponatremia and remove glycine)

4

adverse effects of Li+

- thyroid dysfunction
- cardiac arrhythmias
- nephrogenic DI (occurs in 40% of pts)

5

tx for nephrogenic DI 2/2 Li+

- d/c Li+
- amiloride (blocks Li+ entry into principal cell via ENaC)
- thiazide diuretics

6

what can happen w/ Li+ if started on diuretics?

Li+ level may increase! need to monitor level and/or reduce Li+ dose