Potassium Flashcards
(13 cards)
1
Q
Hypokalemia
EKG changes
A
- flattened T-wave
- presence of U-wave
2
Q
Hyperkalemia
EKG changes
A
- widened QRS
- peaked T-waves
3
Q
Tx of emergent hyperkalemia
A
calcium IV
used when QRS gets too wide
4
Q
Aldosterone effects on K+
A
promotes secretion
in principle cells in collecting duct
5
Q
Helps reabsorb K+ in severe hypokalemia
A
α-intercalated cell
in collecting duct
6
Q
Leg weakness in dialysis patients
what to think
A
hyperkalemia
7
Q
U-waves
A
hypokalemia
8
Q
Flattened T-waves
A
hypokalemia
9
Q
Widened QRS
A
hyperkalemia
10
Q
Pointed T-waves
A
hyperkalemia
11
Q
Hypomagnesemia
in turn causes
A
hypokalemia
12
Q
Tx of hypokalemia
A
emergnet replacement
replace stores
check for hypomagnesemia
13
Q
Tx of hyperkalemia
A
insulin/dextrose/sodium bicarb
diuretics