Hyperkalaemia

Question 1

If K+ > 5.5. - what is seen on ECG? (1)

Answer 1

Peaked T waves

Question 2

If K + > 6.5 - what is seen on ECG? (2)

Answer 2

• progressive paralysis of atria*
• P wave flattening
• PR prolongation

Question 3

If K + > 7.9 (3)

Answer 3

• conduction abnormalities / cardiac arrest*
• Wide QRS
• AV conduction blocks
• Asystole / VF / PEA

Question 4

In what instance should hyperkalaemia be treated?

Answer 4

If K+ > 6.5 or any ECG changes

Question 5

What are the 3 main steps of management of hyperkalaemia?

Answer 5

1. Calcium chloride / Calcium gluconate
2. IV insulin - monitor for hypoglycaemia
3. Salbutamol via nebuliser