Addisonian Crisis (Final Exam) Flashcards
(13 cards)
Addison’s Disease
Disease of adrenal cortex that causes hyposecretion of all 3 adrenal cortex hormones
3 Main Adrenal Cortex Hormones
Sugar = Cortisol (where bad effects come from)
Salt = Aldosterone
Sex = Androgens
Addisonian Disease: Pathogenesis
Adrenal gland destroyed
Symptoms when 90% non-functional
ACTH + MSH = larger amounts because lack of negative feedback to the anterior pituitary
Addison Disease Clinical Manifestations: Hypoaldosteronism
Hypotension
-decrease vascular tone
-decrease CO
-decrease circulation blood volume
Salt Craving
-decrease serum Na levels
-increase serum K levels
-dehydration
Addison Disease CLinical Manifestations: Hypocortisolism
Hypoglycemia
Weakness
Fatigue
(HYPERPIGMENTATION r/t ACTH increase)
Addison Disease: Pharmacotherapy
Lifelong glucocorticoid
-hydrocortisone is drug of choice because it contains some mineralocorticoid
-prednisone
-dexamethasone
Mineralocorticoid
-fludrocortisone
Pharmacotherapy: Important issues
Dosing mimics natural release of hormones
-timing is important
-doses are small
NEVER abruptly stop
Dose will need to be increased during stress
-3x3 rule
Always maintain emergency supply
Wear a medic alert bracelet
Addisonian Compilation: Crisis
Medical Emergency
Adrenal Crisis: What causes it?
Sudden insufficiency of serum corticosteroids
Sudden loss of gland
Sudden increase in stress or chronic condition
Sudden cessation of long-term corticosteroid drug therapy
Most common with primary adrenal insufficiency
Adrenal Crisis: Symptoms
Sudden penetrating pain in lower back - abdomen - legs (hyponatremia)
Severe vomiting and diarrhea
Dehydration
Low blood pressure
CNS- loss of LOC - confusion - slurred speech
Hyperkalemia (ECG CHANGES)
Adrenal Crisis: Treatment
Rapid Intravenous Replacement of Hormones
-Hydrocortisone
-Saline (salt)
-Dextrose (energy)
When client is able, switch to PO medications and fluids
IV replacemnt of hydrocrotisone with adrenal crisis
initial IV bolus 100 mg, then 50 mg q 6 hrs
Watch Video of Addisonian Crisis