Dr Citroni's Tut's/Hypo and Hypernatraemia Flashcards
1
Q
How does SIADH present?
A
Isovolaemic hyponatriaemia
2
Q
How would Addison’s present? (salt and fluid status wise)
A
Hyponatraemic
Hypovolaemic
- Because you are deficient in glucocorticoids and mineralocorticoids therefore unable to reabsorb salt and water
3
Q
What are some symptoms of rapid onset hyponatriaemia?
A
Confusion, delirium, disorientation
Generalised muscle weakness, myoclonus, ataxia, hyporeflexia, tremor, asterixis, Cheyne-Stokes breathing, dysarthria
Generalised seizures and coma
4
Q
How does the urine osmolarity compare to the serum osmolarity in SIADH?
A
It is greater
5
Q
What is the serious adverse effect of rapid reversal of hyponatriaemia?
A
Potine myelinolysis
6
Q
What causes isovolaemic hyponatraemia?
A
SIADH
Water intoxication
7
Q
What causes hypervolaemic hyponatraemia?
A
Renal, liver and cardiac failure
8
Q
What is the most common cause of hypernatraemia?
A
Dehydration
