Diabetes Flashcards
In type I diabetes, what cells do the antibodies attack?
the beta cells (islet cells)
these cells make insulin within the pancreas
very high ketone levels can cause what?
DKA – medical emergency
What protein is used to test if T1D is present?
C-peptide protein – VERY low levels or absent in T1D
-released by the pancreas only when insulin is released.
How are women tested for diabetes in pregnancy?
oral glucose tolerance test (OGTT) *preferred
What is the drug of choice in pregnancy for diabetes?
insulin
metformin and glyburide are sometimes used
Retinopathy
Nephropathy
Neuropathy
Autonomic neuropathy
are all what type of damage?
mircovasular disease
What is macrovascular disease?
ASCVD, including MI, CVA, PAD
What are the classic symptoms caused by high BG?
polyuria - excessive urination
polyphagia - excessive hunger
polydipsia - excessive thirst
> fatigue, flurry vision, ED, vaginal fungal infections
Risk factor for DM
HDL:
TG:
HDL < 35
TG>250
PCOS!!
when should people start being tested for DM? regardless of risk factors
45y
alll asx children, adolescents and adults who are overweight (BMI>25 or >23 in asian Americans) with at least one other risk factor (ie physical activity) should be tested. If neg, when should it be repeated?
3 years
FPG is taken after how many hour fast?
8hr
> 126, must be confirmed again by testing with the same or with a new blood sample
BG measured how often? (goal A1C<6.5/7%
not at goal =
at goal =
3 months
6 months
Diagnostic criteria: diabetes
A1C
FPG
2hr PPG after OGTT
> 6.5
126
200
Diagnostic criteria: prediabetes
A1C
FPG
2hr PPG after OGTT
5.7-6.4
100-125
140-199
Treatment goals: not pregnant
preprandial
2hr PPG
80-130
<180
Treatment goals: pregnant
preprandial
1hr PPG
2hr PPG
<95
<140
<120
An A1c of 6% is equivalent to an eAG of 126mg/dL
Each addition 1% increases the eAG by how much?
28mg/dL
Comprehensive care: anti platelet therapy
aspirin 81mg for ASCVD secondary prevention
- aspirin allergy = clopidogrel 75 daily
NOT RECOMMENDED FOR PRIMARY PREVENTION
Comprehensive care: cholesterol control
ANNUAL lipid panel ; most need statins (recheck after 4-12 weeks of starting/incing dose)
can add ezetimibe to max tolerated dose of statin if ASCVD risk >20%
What statin level?
Diabetes + ASCVD (post-MI, PAD), or 50-75y with multiple ASCVD risk factors
HIGH
atorvastatin 40-80mg
rosuvastatin 20-40mg
What statin level?
diabetes without ASCVD and older (40-75)
moderate
What statin level?
diabetes without ASCVD and younger <40
no risk factors for ASCVD –> no statin
ASCVD risk factors: moderate-intensity statin
Peripheral neuropathy - how often get checked?
annually with a 10g monofilament & 1 other test to asses sensation
tx options: pregabalin, duloxetine, gabapentin
Diabetic retinopathy
how often?
when diagnosed –> eye exam with dilation
if retinopathy, annually, if not repeat Q1-2 years
Vaccinations for diabetes
HBV
flu
both Prevnar 13, pneumovax 23 [2-64, then another 65+]
shingrix
Blood pressure goal for diabetes
<130/80 (ACC/AHA)
<130/80 if ASCVD risk is high, if not >140/90 (ADA)
Diabetes with hypertension no albuminuria
treatment
thiazide, CCB, ACE, or ARB
Diabetes with albuminuria +/- HTN
treatment
ACE, ARB
how often check albumin if no kidney disease? if they have kidney disease?
yearly
twice yearly
What are natural products used to dec BG
cinnamon
alpha lipoic acid
chromium
First line treatment for DM
metformin + physical activity
patient has HF, CKD, ASCVD RISK/ASCVD, in everyone (regardless of A1c):
ASCVD major issue: treatment
GLP-1RA (dulaglutide, liraglutide, semaglutide SC in only)
OR
SGLT2i (empagliflozin, canagliflozin) if eGFR ok; CI if eGFR <30
diabetes treatment if HF or CKD major issue
SGLT-2i (empa, canag, dapa). IF eGFR ok (>30)
if cannot use, go with GLP-1RA (dulaglutide, liraglutide, semaglutide)
patient has HF, CKD, ASCVD RISK/ASCVD
> A1c 6.5% treatment options
add the other class SGLT2i or GLP-1RA, using the drugs with CVD benefit
if using SGLTi, can add DPP4i
add basal insulin with CVD benefit (glargine U100 or degludec
TZD - NOT WITH HF
SU
Do not use which agents with DPP4i?
GLP-1RA (same MOA)
Patient does not have ASCVD, HF or CKD but A1C >6.5%
goal: minimize hypoglycemia
DPP4i
GLP-1RA
SGLT-2i
TZD
Patient does not have ASCVD, HF or CKD but A1C >6.5%
goal: minimize hypoglycemia
remains elevated
add different class from
DPP4i
GLP-1RA
SGLT-2i
TZD
Patient does not have ASCVD, HF or CKD but A1C >6.5%
goal: weight loss
options with best evidence:
GLP-1RA (semaglutide, liraglutide, dulaglutide)
SGLT-2i
Patient does not have ASCVD, HF or CKD but A1C >6.5%
goal: weight loss
remains elevated
use other class (GLP-1RA or SGLT-2i)
Patient does not have ASCVD, HF or CKD but A1C >6.5%
goal: minimize hypoglycemia
remains elevated x2
if triple therapy is required or SGLT2i and/or GLP-1RA are CI: use DPP4i
if DPP4- not tolerated or CI or already on GLP-1RA, cautiously add either:
TZD
basal insulin
SU
when is metformin started in combo instead of alone?
A1c >1,5% goal
if eGFR <30 what treatment?
NO metformin
insulin can be used initially if hyperglycemia is severe BG>300/a1c >10%
Consider what agent before insulin if above A1c target goal?
GLP-1RA
Consider what options before full basal-bolus dose insulin if above A1c target goal?
remains elevated —
add basal insulin or bedtime NPH insulin
Adding on basal insulin or bedtime NPH insulin, what’s the starting dose?
0.1-0.2u/kg/day (TDD)
-set FPG target
- choose titration algorithm (inc 2u every 3 days)
if hypoglycemia dec dose by 10-20%
patient on GLP-1RA, NPH bedtime insulin with titrated dose… remains elevated…
add meal-time insulin, starting with ONE daily dose, before meal with highest carb intake or highest postprandial BG
additional prandial doses can be added up to 2-3 times daily prior to meals
if insufficient –> full basal-bolus regimen
Top 3 treatments:
metformin
GLP-1RAs
SGLT-2i
side effects
weight LOSS
NO hypoglycemia
Brand: Actoplus Met
generic: metformin/pioglitazone (TZD)
Brand: Janumet
generic: metformin/sitagliptin (DPP4i)
Brand: invokamet
generic: metformin/canagliflozin
MOA: dec hepatic glucose output
metformin (BIGUANIDE)
Brand: Glucophage, Glucophage XR, Fortamet, Glumetza
generic: metformin
Metformin boxed warnings
lactic acidosis - increase risk with renal disease!!
Brand: Actos
generic: pioglitazone
TZD
Brand: Avandia
generic: rosiglitazone
TZD
MOA: increase muscle cell-sensitivity to insulin to inc BG entry
TZDs
Which agent causes hypoglycemia when used with insulin so much that the insulin dose may need to be reduced?
& ALSO CAUSE WEIGHT GAIN
TZDs
Side effects of TZDs
edema, weight gain, bone fractures
Which diabetic agents should not be used in HF? (class III/IV)
TZD
BBW
Warnings: Hepatic failure Edema worsen HF Fractures stimulate ovulation BLADDER CANCER
TZD
bladder cancer – pioglitazone
Brand: invokana
generic: canagliflozin
Brand: Jardiance
generic: empaglyflozin
MOA: increase BG renal excretion via proximal tubule
SGLT2i
Which agent causes hypoglycemia when used with insulin so much that the insulin dose may need to be reduced?
& ALSO CAUSE WEIGHT LOSS
SGLT2i
Which SGLT2i have a BBW for amputation risk?
canagliflozin
Warnings: inc LDL inc K fluid loss, hypotension Ketoacidosis, even with BG <250
SGLT2i
How many days should you DC SGLT2i prior to surgery
3 days, to reduce the risk of ketoacidosis
Brand: januvia
generic: sitagliptin