Week 2 Flashcards
Cushing’s Disease. What is it?
overproduction of cortisol, pituary caused symptoms.
Cushing’s disease causes
long term use of glucocorticoid medications, steroids at high doses, Endogenous causes (excess adrenocorticotropic hormoneACTH from pituitary tumors or adrenal gland hyperproduction)
Cushing’s disease patho
hypothalamus regulates ACTH, which in turn regulates the production of glucocorticoids (cortisol).
cortisol responds to physical and psychological stressors.
clinical presentation of cushing’s disease
almost almost manifests with chronic changes ie rapid weight gain, loss of menses, decreased libido, weakness, bruising.
may have: HTN, glucose intolerance, insomnia.
memory disturbances, depression.
pediatric presentation for cushings
Most common causes are weight gain and depressed linear growth (height)
physical exam for cushings
pt will have central obesity, moon face, buffalo hump, htn, muscle weakness/wasting, hirsutism, red/purple abdominal straiae, acne, depression
diagnostics of cushings
24 hour urine (for urine cortisol level >100mcg would indicate cushings),
serum cortisol at midnight ( if level is above 7.5, it indicates cushing’s),
creatinine,
ACTH suppression test (endocrine specialist does)
management of cushings
consult with endocrine specialist.
depends on the source of hypercortisolism. the goal is to mitigate impact of cortisol
daily ketoconazole administration.
bone density measurement if on longterm corticosteroids due to risk for osteoporosis.
alternative therapies: to improve energy and increase physiological health: use licorice(suppressess fight of flight), st johns wort, ginseng, fish oils,sea salt
if there is a pituitary tumor- resection of tumor, chemo, radiation
complications of cushing’s disease
carefully monitor complications of longterm steroid use, osteoporosis is a common complication, along with infection, htn, diabetes.
referral/hospitalizations of cushing’s
if pt is in hypertensive crisis
surgical intervention of pheochromocytoma
consult to endocrine if diagnostic test suspects addison’s or cushing’s disease
pt education and health promotion of cushing’s
educate about complications chronic steroid use, doubling hydrocortisone dose is required with fever and common illnesses, alert medical personal if there is surgery, trauma, infection. Wear medical alert bracelet and have emergency med kit for extraparenteral steroids
type 2 diabetes diagnosis
fasting blood glucose > 126 on two separate occasions. do note need a1C to diagnose, however you can get it to establish baseline
DM diagnostic criteria
- random plasma glucose >200 and symptoms of diabetes (polyuria, polydipsia, DKA, unexplained weight loss)
OR - hgba1c >6.5
OR - fasting plasma glucose >126
- results of 2 hour 75 gram OGTT >200 @ 2 hrs
should be repeated on different day unless undeniably high
glycemic control algorithm
individualized goals of a1c < 6.5% for those without serious illness and at low hypoglycemic risk OR
hgb a1c >6.5% with concurrent serous illness and at risk for hypoglycemia
lifestyle therapy for all.
glycemic control therapy plan for hgb <7.5
Monotherapy.
metformin,
GLP1 (-tides, oxepmic, trilicity, vietna)
SGLT2: -flozin
Empagliflozin (jardiance), canagliflozin (invokana),
Dapagliflozin (faxiga).
DPP4: sitagliptin
TZD,
AGI,
Sulfoneureas,
If they dont reach goal in 3 months, go to dual therapy
glycemic control therapy plan for hgb > or equal to 7
dual therapy
metformin +basal insulin
if you dont reach goal in three months, go to triple therapy
glycemic control therapy plan for hgb >9
do they have symptoms? no: dual therapy or triple therapy.
if they have symptoms: insulin +- other agents
if you don’t reach in 3 months, go to insulin
initiation of basal insulin
stop sulfonyureas before starting insulin.
start insulin at dose of 0.1-0.2 units per kg for hgb a1c < 8
0.2-0.3 units per kg for hgb a1c > 8
increase by 2 units or 10 % every 2-3 days until glucose goal met
report all BG < 70
screening for renal nephropathy in type 2 diabetes
most appropriate time is at diagnosis.
done by random urine collection
normal urine albumin to creatinine ratio is <30mg/g
hirsutism
can be a result of cortisol excess
if cushing is suspected, perform salivary cortisol level and 24 hr urine for free cortisol or low dose overnight dexamethasone suppression test.
also perform fasting insulin, OGTT, and lipid profile
thyroid hormone excess
check TSH
causes of hirsutism
PCOS, adrenal hyperplasia, ovarian tumors, cushing syndrome, acromegaly,
hyperparathyroidism. What is it?
Oversecretion of PTH
Calcium absorption helps body decrease phosphorus levels
Causes of hyperparathyroidism
can be genetic endocrine disorders, familial hypocalciuric hypercalcemia, lithium related, radiation induced, carcinoma, thiazide related.
primary hyperparathyroidism PHPT
is caused by parathyroid adenoma
secondary hyperparathyroidism
is caused by renal failure (GFR < 50) or vitamin D deficiency (vit d level falls below 20).
In RF, decreased calcium causes PTH production.
Vitamin d deficiency causes decrease in calcium absorption.
tertiary hyperparathyroidism
prolonged secondary stage. hypercalcemia is a result
treatment for PHPT
close monitoring of calcium, creatinine, vitamin D, bisphosphonates, hormone replacement with estrogen, raloxifene (in patients with osteoporosis), cinicalet (cinimimetic agent that normalizes PTH and calcium ). ADEQUATE CALCIUM AND FLUID INTAKE.
treatment for secondary HPT
kidney transplantation, calcitriol, vitamin D, can also have parathyroidectomy
complications of HPT
Osteoporosis Nephrolithiasis Mortality Bone abnormalities Vascular complications Coronary valve disorders
diagnostic test for hyperparathyroidism
Intact PTH (Stop biotin 7 days before testing)
Serum calcium
Albumin
Vitamin d hydroxy
phosphorus
Bone mineral density assessment- of distal radius
24 hr urine
ECG - hypercalcemia can cause shortened QT interval
Renal ultrasound to rule out stones
Magnesium level- for hypothyroidism only
screening for diabetes
TheA1c, FPG, or the 2-hour 75-gram anhydrous OGTT are all equally appropriate diabetes screening testsby the ADA, according to the revised Standards of Care (no one test is preferred.) The ADA notes that the A1cmay have some advantages over the other tests (eg, convenience and less day-to-day variation, etc), but these must be balanced by the costs and availability of A1ctesting and by the lower sensitivity of this test.