Endo JB Flashcards
Acromegaly dx
Screening: ILGF-1
confirm: oral glucose suppression test increase GH levels in acromegaly
MRI of pituitary
Acromegaly sx
DM, glucose tolerance
enlarge feet, hands, skull, jaw
coarse facial features
doughy skin
acromegaly tx
transsphenoidal surgery + bromocriptine
rad therapy if GH levels high after surgery
octreotide
pegvisomant can be added to octreotide
MCC adrenal crisis
abrupt withdrawal of GCS
Adrenal crisis presentation
shock: hypoTN, hypovolemia
adrenal crisis tx
IV fluids
GCS: hydrocortisone if known Addison, dexamethasone if unknown
reverse electrolyte disorders
fludricortisone- synthetic mineralocorticoid
Adrenal insufficiency dx
Baseline 8am cortisol and renin
high dose cosynotropin test- screening
CRH stimulation differentiates causes of adrenal insufficiency
Adrenal insufficiency tx
primary: GCS + mineralocorticoids
secondary: GCS
GCS: dexamethasone, hydrocortisone
mineralocorticoids: fludricortisone
adrenocortical insufficiency sx
trunk pain w/ anorexia, N/V hypotension, F ,confusion hyper pigmented, salt cravings hypoglycemia loss of axillary/pubic hair
Charcot arthropathy
diabetic foot
Cushing syndrome sx
central obesity moon facies buffalo hump supraclavicular fat pads thin extremities, skin atrophy hyperpigmentation, acanthuses nigricans hirsutism, acne
Cushings Dx
screening: low dose dexamethasone suppression test, 24h urinary free cortisol, salivary cortisol levels
Differentiation: high dose dexamethasone suppression test, ACTH levels
Cushings tx
pituitary: transphenoidal surgery, radiation
Ectopic tumors: tumor removal, ketoconazole or metyrapone (if inoperable)
iatrogenic steroid therapy: steroid taper
Diabetes insipidus sx
sx with decreased oral water intake
polyuria, polydipsia, nocturia
dehydration, hypoTN
Diabetes insipidus dx
fluid deprivation test
desmopressin (ADH) stimulation test: central vs nephrogenic DI (central=dec urine output w/ ADH, nephrogenic= no response to ADH)
diabetes insipidus tx
central: DDAVP, carbamazepine
nephrogenic: Na/protein restriction –> HCTZ, indomethacin, amiloride if due to lithium
sx: hypotonic fluid
DKA labs
high anion gap metabolic acidosis: low pH/bicarb/CO2 increased RR (kussmaul) \+ ketones
DKA tx
IV fluids regular insulin potassium bicarb Goal= close anion gap