hypokalemia Flashcards
1
Q
causes of hypokalemai
A
low intake (anorexia), diarrhoea/laxatives, sweating, vomiting
loop/thiazide diuretics, DKA (after correction as cells take in k), alkalosis (H released + k absorbed), hyperaldosteronism, Cushing syndrome
low mg
insulin overdose
BB
2
Q
symptoms
A
lethargy, weakness, leg cramps, constipation, flaccid paralysis, hyporeflexia, hypertension
3
Q
ECG changes of hypokalemia
A
prolonged PR interval, flatten T waves, ST depression, T wave inversion, prominent U waves
4
Q
managment
A
k replacment <20 meq/l over 4 hours
IV causes burning
PO refeeding prefered
stop offending drugs
k sparing diuretics
