Endocrine Flashcards
when and why do you stop metformin
48 hours before angiography
imaging w/ contrast
lactic acidosis
Cr > 1.5 males or > 1.4 females
ADR of pioglitazone
fluid retention
Defn of subclinical hypothyroidism
incr TSH
NL T3 or T4
no sxs
incr TSH
NL T3 or T4
no sxs
subclinical hypothyroidism
med that decr insulin resistance
thiazolidinediones (ex: pioglitazone (Actos))
DM med safe in CKD
glipizide
CI to thiazolidinedines (pioglitazone)
heart failure
T1DM
liver dz
premenopausal anovulatory female
DM med that decr weight
exenatide (byetta)
inpt glucose target
140-180
how to differentiate hyperparathyroidism w/ familial hypocalciuric hypercalcemia
24 hour urine CA (incr or NL in elevated PTH, decr in FHH)
best test to r/o adrenal insufficiency
AM cortisol, R/O if >13
painful thyroid gland, hyperthyroid, incr ESR
subacute thyroiditis
tx of subacute throiditis
prednisone
when to screen DM
age 45, every 3 yrs OR BMI >25 w/ risk factor
can’t use eventide (Byetta) when
Cr Cl
rough estimates of blood glucose w/ A1c
6.0 = 120
incr 1 = incr 30
Tx of hirsutism
spironolactone
OCPs
what meds stimulate pancreatic insulin secretion
sulfonylureas (glipizide)
TSH receptor immunoglobulins, dx..
Graves disease
TSH receptor blocking antibodies
Hashimoto’s thyroiditis
pt 65+ with low TSH (physiologic hyperthyroidism) at risk for
hip fractures
newly diagnosed diabetics should be vaccinated for
Hep B
what to monitor if giving testosterone supplementation
Hct monitored every 6 months for first 18 months, then annually
D/C if Hct incr 50%
diabetic foot ulcer. Evaluate osteomyelitis w/
MRI
MOA metformin
inhibits gluconeogenesis in liver
indications for parathyroidectomy
patient > 50 yrs old or
patient with symptomatic hyperparathyroidism (fracture)
which med is preferred to treat hyperthyroidism and why
methimazole (PTU can cause severe hepatocellular damage)
meds most likely to cause hypoglycemia
sulfonylureas (glyburide more than glipizide)
dx primary hyperaldosteronism
plasma aldosterone to renin ratio
patients w/ T1DM should be screened for
hypothyroidism celiac disease nephropathy hypertension retinopathy
tx adrenal crisis
IV hydrocortisone
A1c goal for end stage chronic illnesses
elevated prolactin, next step
MRI pituitary
management of thyroid nodules
TSH
low TSH: radionuclide scan
high or normal TSH: FU if 1 cm