Hyponatraemia Flashcards
1
Q
What are the types of hyponatraemia?
A
Hypovolaemic hyponatraemia
Euvolaemic hyponatraemia
Hypervolaemic hyponatraemia
2
Q
What is the most common cause of euvolaemic hyponatraemia? (usually urine sodium > 20)
A
SIADH
Addison’s disease
Primary polydipsia (Urine osm < 100)
3
Q
What are the common causes of SIADH?
A
Brain causes
- Head injury
- Brain tumours
- Subarachnoid haemorrhage
Lung causes
- Empyema
- Lung cancers
4
Q
What is the treatment for hypovolaemic hyponatraemia?
A
Slow NaCl 0.9%
5
Q
What is the treatment for euvolaemic hyponatraemia?
A
Fluid restriction
6
Q
What is the treatment for hypervolaemic hyponatraemia?
A
Diuresis
