QG SB2 (F) Flashcards
W2 QG blocks (15,17,20,23,26) Deck is full
what does DI present w/?
sOSM incr sNa incr
uOSM decr uNa decr
what does HHS stand for?
hyperosmolar hyperglycemic state
what is hashimoto’s thyroiditis associated w/?
- thyroid lymphoma
- other AI disorders
what are the common presenting s/s VIPoma?
diarrhea, flushing, TEA COLORED STOOLS
carcinoid - pulm s/s + tea colored stools
what steroid from the adrenal gland regulates K+?
aldosterone (dumps K+ and reabsorbs Na)
which adrenal insufficiency presents w/ low aldosterone?
1* adrenal insufficiency
what causes central (2*) adrenal insufficiency?
chronic steroid use
what causes 1* adrenal insuficiency?
AI
plasma renin : aldosterone ratio test tests for what?
hyperaldosteronism [>30 = conn’s. ~10 = 2*)
aldosterone is incr. what Na and K values do you expect?
Na incr. K decr.
what med should you use to tx conn syndrome if pt refuses Sx?
eplerenone > spironolactone
aldosterone antagonists = k+ sparing anti-HTN drugs
what PO DM meds cause weightloss?
- GLP-1 antagonist
- SGLT-2 inhib (__gliflozin)
- metformin
ED + testicular atrophy are likely 2/2 _____
hypogonadism
what sex characteristics are altered in cirrhosis?
small testes
gynecomastia
why do you see sex characteristic changes in cirrhosis?
1* gonaadal injury/ HPaxis dysf(x) –> small testes
incr conv androgens –> incr estradiol –> gynecomastia
expected electrolytes low aldosterone?
decr Na. incr K. Low BP.
how do you dx 1* adrenal insufficiency?
- 8am cortisol –> low cortisol
- check ACTH –> high
- ACTH stim test –> No response b/c gland isn’t able to respond to the ACTH in circulation
why can hypothyroidism result in oligomenorrhea?
low T3/T4 –> hypothalamus incr TRH release (so TSH incr and T4 incr) –> BUT incr TRH –> incr prolactin –> decr FSH –> oligomenorrhea
hypocalcemia w/u includes?
- recheck Ca to confirm it’s truly low
2. check Mg, albumin, PTH
in a nL healthy body, incr PTH –> incr Ca + decr Phos. if incr PTH but decr Ca, what is the dx?
- vit D def
- CKD
- pancreatitis (Ca used up in soaponification)
- sepsis
- tumor lysis
what are the blood glucose goals for DM?
preprandial/fasting = 80-130
post-prandial <180
HgA1c <7%
at what age do you stop giving adults the drugs on the Bier’s list?
age >= 65
HgA1c is an indicator of what?
post-prandial glucose (prev 3 mos)
what is the dawn phenomenon?
fasting hyperglycemia 2/2 GH and cortisol release overnight
what IVF should be given initially for volume resuscitation (1st few hours)?
NS (0.9%)
what electrolyte must you keep an eye on when using IVF for fluid resuscitation?
Na
when should 0.45% NS be used for volume resuscitation?
corrected Na is nL or high on recheck
what does PTH incr do to phos?
decr (PTH = phosphate trashing hormone)
incr PTH + incr Ca + decr phos. dx = ?
1* hyperparathyroidism
PTH is being released despite high Ca that should be suppressing it
what is the threshold for malignant hypercalcemia?
Ca > 14
what is necrolytic migratory errythema?
erythematous papules/plaques that grow/coalesce. will have central clearing, blistering, and crusting/scaling edges
how does glucagonoma present?
DM (easily controlled) + rash (NME) + GI (D/C, abd pain, anorexia, wt loss)
what confirms dx of glucagonoma?
glucagon > 500 pg/mL
what are the 1st and 2nd line tx for grave’s dz?
- propranolol (use BB to decr symp activity)
2. PTU/methimazole
why is radioactive iodine a 3rd line tx for grave’s dz (esp. when exopthalmos is present)?
RAI –> rapid thyroid destruction –> immediate release of T3/T4 reserve –> makes s/s temp worse **
**exception = exopthalmos which is irreversible
what comorbid condition should be expected (and r/o) in PCOS pts?
DM (often are obese and will develop insulin resistance)
what is the gold standard for dx DM2 in PCOS pts? (bonus: why?)
oral glucose tolerance test (more sensitive @ detecting glucose intolerance)
obese pts w/ metabolic synd are at incr risk for developing what 3 conditions?
- OSA
- nonalcoholic fatty liver dz
- endometrial cancer
what is metabolic synd?
+dislipidemia (incr cholesterol or incr TG)
+HTN
+DM2
+excess abd fat
what organs suffer first in DM?
eyes and kidneys (b/c have the smallest vasculature)
what does tight blood glucose control do to all-cause-mortality and macrovesicular complications?
effect = uncertain
what is osteomalacia?
defective bone mineralization
what is the MCC of osteomalacia?
severe vit D def
why does decr vit D –> osteomalacia?
decr vit D –> decr Ca and Phos absorp in gut –> incr PTH –> bone break down –> incr ALP
how does the bone matrix look in osteoporosis?
low bone mass. nL mineralization
glucocorticoid deficiency + hypogonadism + hypothyroid. Dx = ?
hypopituitarism
is aldosterone incr/decr/nL in hypopituitarism?
nL (i.e. central adrenal insufficiency)
RAIU results in hashimotos vs subacute thyroiditis vs silent thyroiditis.
hashimotos –> incr (hyperthyroid early in dz process)
subacute thyroiditis –> none
silent thyroiditis –> none
5 causes of 2* HTN
- pheochromocytoma
- RAS
- hyperthyroidism
- Conn synd
- coarctation of the aorta
BP discrepancies btwn R & L extremities. Dx = ?
aortic dissection
BP discrepancies btwn UE & LE. dx = ?
coarctation of the aorta
what might hypothyroid pts present w/ that will not be altered in depression?
decr DTR on P/E
what lab will be high in neuroblastoma?
vanillymandelic acid (VMA)