Hypokalaemia Flashcards Preview

Endocrinology Medicine > Hypokalaemia > Flashcards

Flashcards in Hypokalaemia Deck (9)
Loading flashcards...
1
Q

What is hypokalaemia?

A

Low serum potassium

2
Q

What is normal serum potassium?

A

3.5-5 mmol/L

3
Q

What are the symptoms of hypokalaemia?

A

Muscle weakness
Cramps
Arrhythmias
Tetany

4
Q

What are the ECG changes in hypokalaemia?

A

Inverted T waves
U waves
Prolonged PR
ST depression

5
Q

What are the causes?

A
Diuretics
V+D
Alkalosis 
Cushing's syndrome 
Conn's syndrome
6
Q

What is mild hypokalaemia?

A

> 2.5 mmol/L

No symptoms

7
Q

How do you manage mild hypokalaemia?

A

Oral K+ supplements (sando K)

8
Q

What is severe hypokalaemia?

A

<2.5mmol/L

Symptomatic

9
Q

How do you manage severe hypokalaemia?

A

IV potassium

No more than 20mmol/hr