Addison's Flashcards
What is Addison’s?
Primary adrenaline insufficiency
What does Addison’s cause?
Deficiency of both aldosterone and cotrisol
What is the role of aldosterone?
Regulation of BP, Na and K
What is the role of cortisol?
Increase blood sugar
Anti-inflammatory
Metabolism of fat, protein and carbs
What are the causes of addison’s?
Most common= autoimmune Infection Maliganncy Infarction Drugs
What is the pathology in autoimmune Addison’s?
Autoantibodies against 21 hydroxylase and/or adrenal cortex
What are the clinical features of Addison’s?
Anorexia and weight loss Hyperpigmentation Weakness and fatigue Hypotension, syncope Unexplained D&V Salt craving
What investigations are done for Addison’s?
FBC, U&Es, glucose, autoantibodies
Random cortisol
Synacthen and basal ACTH
What do the bloods in Addison’s show?
Low Na, high K
Low blood sugar
Random cortisol <700
What is the management of an adrenal crisis?
Acutely unwell, treat then investigate
IV hydrocortisone
IV saline
IV dextrose
What is the chronic management of Addison’s?
Glucocorticoid and mineralocorticoid replacement= hydrocortisone/cortisone/pred and fludrocortisone
Give in divided doses and never miss
What are the rules in Addison’s management?
Never miss a dose
Double hydrocortisone if intercurrent illness
Severe D&V, call for help ASAP
What is the presentation of an adrenal crisis?
Severe D&V
Dehydration, hypotension, syncope
Confusion, slurred speech, convulsions
Hypoglycaemia, hyponatraemia, hyerkalaemia