Diabetes Flashcards
Diabetes diagnosis
fasting BG >125
2 hr post OGTT: >200
A1c >6.5%
BG goals
A1c <7%
fasting BG <130
post-prandial BG <180
SGLT2 inhibitors
increase glucose excretion canagliflozin (Invokana) dapagliflozin (Farxiga) empagliflozin (Jardiance) c/i if GFR <30 s/e: yeast/genital infections, AKI, ketoacidosis, risk of amputation
DPP-4 inhibitors
decrease glucagon, increase insulin release
sitagliptin (Januvia), saxagliptin (Onglyza), lingliptin (Trajenta)
s/e: pancreatitis, risk of HF w/ saxagliptin
GLP-1 agonists
increase insulin secretion, decrease glucagon, slow gastric emptying
liraglutide (Victoza), dulaglutide (Trulicity), albiglutide (Tanzeum)
c/i if CrCl <30
Trulicity, Tanzeum dosed weekly
Pramlintide
can use with Type 1 or Type 2 diabetes
inject before meal
Initiating Basal/Bolus insulin
Total Daily Dose = 0.6 units/kg/day or 0.6 x weight
divide 50% basal, 50% bolus - divide bolus by 3 for each meal dose
if NPH, 2/3 TDD if NPH, 1/3 is bolus insulin
insulin to carbohydrate ratio
rule of 500
500/TDD = grams of carbs covered by 1 unit insulin
Correction Factor
Rule of 1800
1800/TDD = BG decrease for each unit insulin
Correction Dose
(BG now - BG target) / correction factor
Insulin counseling
do not shake, roll vials
if mixing, mix clear before cloudy - NPH is cloudy
inject abdomen, thigh, buttox, upper arm
hypoglycemia
BG <70
dizzy, HA, irritable, shaking, sweating, confusion
15 g carbs: 3-4 glucose tabs, 4 oz pop/juice, 1 Tbsp sugar
recheck in 15 min, repeat
glucagon used if unconscious, unable to self treat
diabetic ketoacidosis
BG >250, ketones (fruity breath/urine), pH <7.35, anion gap >12
drug selection factors
if DM + ASCVD: empagliflozin (Jardiance), liraglutide (Victoza)
if GFR or CrCl <30: avoid metformin, SLT2, exenatide, glyburide
if HF: avoid TZDs, saxagliptin
if peripheral neuropathy, foot ulcers: avoid canagliflozin
Major drug risks and side effects
lactic acidosis - metformin hepatotoxicity - TZDs UTI/genital infection - SGLT2s abnormal K - canagliflozin (hyper K), insulin (hypo K) pancreatitis - DDP-4, GLP-1 ketoacidosis - SGLT2s