Hyperkalemia

Question 1

high K can develop to this rhythm on EKG

Answer 1

wide complex regular rhythm without P waves.

Question 2

treatment of significant hyperkalemia should be:

Answer 2

IV calcium gluconate to help raise the cardiac resting potential and helps antagonist cell membrane effects to K

Question 3

Progression of morphology of EKG with hyperkalemia

Answer 3

Question 4

What is this condition?

Answer 4

Development and progression of hyper K on EKG

see absence of P wave activity (atrial asystole) and QRS widening due to intraventricular conduction delay. THis is from hyperK from worsening renal fuction.

Earliest manifestation on EKG of hyperK is tall peaked T waves with shorter QT interval and dramatic changes occur.

Question 5

Causes of hyperkalemia

Answer 5

Question 6

EKG changes with hyperK

Answer 6

peaked T waves, increased PR interval, absent P waves, prolonged QT interval and widened QRS complex.

Question 7

K is 7 or 8 but EKG is normal then

Answer 7

likely pseudohyperkalemia due to mechanical stress of blood draw releasing K from diseased or fragile WBC and platelets.

This means no tourniquet, or shaking or stored on ice and promptly analyzed to prevent pseudohyperkalemia.

Failing to recognize pseudohyperkalemia can result in hypokalemia

Question 8

How to manage acute hyperkalemia based on medications

Chart shows onset of action and mechanism of action

Answer 8