Parathyroid/Adrenal Flashcards
Symptoms associated with HyperCalcemia
Stones, Bones, Moans, Groans, and Psychic overtones.
Treatment of symptomatic hypercalcemia
Hydration is most important, IV furosemide and diuretics are falling out of favor. IV bisphosphonate infusion should then be started and will lower Ca level over 2-4 days. Calcitonin has limited duration of action but can be used in emergency when saline is ineffective.
Mechanism of malignancy associated hypercalcemia?
secretion of PTH-like substances that increase serum calcium (PTH stimulates osteoclasts to increase bone resorption.
Medications that can help manage chronically elevated Calcium levels.
Bisphosphanates- decrease serum Ca and increase bone density, Oral Phosphate decreases Ca absorption in gut and bone reabsorption of Calcium. glucocorticoids decrease intestinal absorption of Ca.
Meds that can cause hypercalcemia
Thiazides, lithium, tamoxifen, megesterol, methytestosterone, mycophenalate, tacrolimus, theophylinne toxicity.
Chokstek sign- what does it look for and how do you do it?
Hypocalcemia, tap cheek just anterior to tragus then causing twitching
Trousseau Sign
hypocalcemia- Carpopedal spasm after placement of bp cuff
How to you correct serum calcium for hypoAlbuminemia?
Add 0.8 mg/dL to serum Ca for each 1g/dL the albumin is
Most common cause of Cushing’s Syndrome?
Exogenous Steroids, other causes are cushing’s disease, adrenal neoplasms, or ectopic ACTH production (lung, pancreas, kidney).
Hyperpigmentation, hypotension, fatigue, weight loss, syncope, what do you think of?
Addison’s Disease
Labs indicative of Addison’s Disease (primary adrenal insufficiency)
HypoNa, HyperK, HypoGlycemia
Test to diagnose adrenal insufficiency
Cosyntropin test- cosyntropin is synthetic ACTH which should induce a burst of cortisol. Can also check random serum cortisol but not as good. Note, Moring serum Cortisol
Main cause of Addison’s in the US vs World wide
Autoimmune vs tuberculosis
Hyperpigmentation in Addison’s is more indicative of primary or secondary cause?
Primary since ACTH is in excess and causes stimulation of melanocyte stimulating hormone.
Treatment of Addison’s?
Glucocorticoids (prednisone or hydrocortisone) and Mineralocorticoid (fludrocortisone) indefinitely, increase doses during times of stress.