Hyperkalaemia Flashcards
1
Q
What ECG changes occur between K 5.5-6.5
A
Peaked T waves
Repolarisation abnormalities
2
Q
What ECG changes occur between K 6.5-7
A
P-wave flattening/widening
Prolonged PR
P waves dissapear eventually
Progressive atrial paralysis
3
Q
What ECG changes occur between K 7-9
A
Sinus bradycardia
High grade AV block with slow junctional/escape rhythms
Slow AF
Bundle branch blocks
Prolonged QRS (often >200ms) w/ bizarre QRS morphology
Conduction abnormalities
4
Q
What ECG changes occur between K >9
A
Sine wave
Asystole
VF
PEA w/ bizarre wide complex QRS
These can all happen earlier as well
