Hyponatraemia Flashcards
1
Q
Hyponatraemia defintion
A
< 135 mmol/L
2
Q
Risk factors
A
Older age
Hospitalisation
Selective serotonin
Reuptake inhibitor (SSRIs) use
Thiazide diuretic use
MDMA (ecstasy)
3
Q
Diagnosis
A
Serum sodium conc < 135 mmol/L
Measure serum osmolarity (hyponatraemia + pseudohyponatremia)
4
Q
Treatment
A
Acute:
FIRST LINE: hypertonic saline infusion
Chronic:
FIRST LINE: Fluid restriction + Loop diuretics
5
Q
Signs and symptoms
A
Confusion
Lethargy
Seizures
Coma
Headaches
Muscle weakness
6
Q
Types of hyponatraemia
A
Hypovolaemic
Euvolaemic
Hypervolaemic
Iso-osmolar
Hypertonic
