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Flashcards in Renal Emergencies Deck (13)
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1

what are renal emergencies?

- hyperkalemia
- volume overload
- metabolic acidosis
- uremia
- toxins

2

how does hyperkalemia predispose to cardiac arrhythmia?

resting potential becomes more positive (closer to threshold potential)

3

effects of hyperkalemia

- muscle weakness
- myocardial irritability

4

hyperkalemia causes

- factitious
- high intake
- intracellular shift
- intracellular release
- poor excretion

5

how much more calcium in CaCl2 vs Ca gluconate?

3x

6

who should receive calcium tx in hyperkalemia?

nearly all cases, unless hypercalcemic or on digoxin

7

when do you still give calcium for hyperkalemia treatment even if on digoxin?

loss of P waves or interventricular conduction delay (IVCD)

8

total body K+

~ 3500 meq

(only 50-60 meq in extracellular space)

9

where is most of the K+ in body stored?

muscle cells

10

hyperkalemia treatment: insulin

- onset
- duration

- 10 to 20 minutes

- ~ 4 hours

11

hyperkalemia treatment: insulin

- expected drop in K+

0.6 to 1 meq/L

12

hyperkalemia treatment: insulin

- major adverse effect

HYPOGLYCEMIA

(may occur in up to 75% of ESRD)

13

hyperkalemia treatment: nebulized albuterol

- onset
- duration

-