dm Flashcards
fx of insulin 3
inhibit glucose producion in liver
suppress lipolysis in adipose tissue
stimulates glucose uptake in target cells
in what pts is A1C not accurate? 3
liver, kidneys, ETOH
if one of the DM testing is positive, do they have DM?
no, do another test another day
what helps with microvascular benefits? Marco?
micro - BG controls
macro - multiactorial, WEADS, meds, BP controls and BG controls
what A1C to start lifestyle changes vs start meds?
<8.5 - lifestyle +/- metformin - give it 3 months trial
> 8.5 start metformin - consider other antihyperglycemics
when to start insulin?
symptomatic hyperglycemia with metabolic decompensation
can add metformin at this time too
when should target of A1C be reached?
3-6 mos
7 classes of antihyperglycemics
Biguanides - metformin
Sulfonylureas - glyburide/gliclazide
Meglitinides - repaglinide
Alpha Glucosidase inhibotors - Acarbose
DipeptidylPeptidsase DDP-4 (gliptans) - sitagliptin/linagliptin
Glucagon like peptide 1 receptor GLP1) -
Sodium-glucose co transporters (SGLT - 2) inhibitors - ….pagliflozin
4 fx of biguanides
stop leaky liver
decrease liver glucose production
increase insulin sensitivity and cellular glucose uptake and utilization
slows the rise in overnight BG and before meals
benefits of metformin? 2
when to RA?
max?
monitor what blood level?
weight loss - 2kg
decrease A1C - 1 -1.5
RA in 2 weeks - take 2 weeks to take effect
max 1000 BID
monitor serum b12
caution or avoid metformin in what type of conditions 3
renal dysfx
liver dysfx
risk of lactic acidosis
sulfonylrea 5
squeeze last bit of insulin out of pancrease
increase beta cell insulin release
decrease hepatic gluconeogenesis
increase glycogen storage
enhance peripheral sensitivity to insulin
first line for dm?
2nd line?
both are cleared by?
1st - metformin
2nd - sulfonylrea - glyburdie/gliclazide
renally cleared - caution
consideration for sulfonylurea?
need to eat to avoid hypo
caution in sulfa allergy, renal dysfx, risk for hypo and G6PD def
BB may mask hypo effects
what drugs squeeze out insulin in pancreas? 2
sulfonylurea - stimulate insulin release regardless of plasma glucose
meglitinides - does not cause insuline release in absense of exogenous glucose
shorter acting on b cells than solfonylurea, skip meal skip meds, extra meal, extra med