44. Diabetes Flashcards
Diabetes is due to decreased___ , ____, or both
insulin secretion, insulin sensitivity
Define T1DM
Autoimmune destruction of beta-cells (no beta-cells = no insulin production)
Define T2DM
insulin resistance and insulin deficiency due to beta-cell damage
Metformin can be used in prediabetes pts with BMI ___, age ___, and women with hx of ____
BMI ≥35, age <60 yo, and women with hx of GDM
Pregnant women are tested for GMD at ___ using ____
24-28 weeks using oral glucose tolerance test (OGTT)
Risk factors of DM
Physical inactivity
Overweight (BMI ≥25 or 23 in asian-americans)
Race (AA, asian-american, latino/hisptanic-american, native american, pacific islander)
Hx of GDM
A1C ≥ 5.7%
First-degree relative with DM (sibling/parent)
HLD, HTN, CVD, smoking
Other conditions that cause insulin resistance (e.g. acanthosis, nigricans, PCOS)
Symptoms of DM
Polyuria, polyphagia, polydipsia, fatigue, blurry vision, erectile dysfunction, vaginal fungal infections
T1DM - initial presentation is often DKA
Screening start age
35 yo
All asymptomatic children, adolescents, and adults who are ____ and have at least 1 other risk factor should be tested and repeat every ____ years if normal
overweight (BMI ≥25 or 23 for asian-americans), repeat every 3 years
There are 3 types of DM tests: ___, ___, and ___. ___ is preferred.
Hg A1C, fasting plasma glucose (FPG), and OGTT. No single test is preferred.
T/F: Positive DM test does not require another test to confirm
Positive test should be confirmed with a second abnormal test result unless clear clinical diagnosis (e.g classic symptoms + random BG ≥ 200)
Diagnosis Criteria for DM A1C
A1C ≥ 6.5%
Diagnosis Criteria for Pre-diabetes A1C
5.7-6.4
Diagnosis Criteria for DM FPG (mg/dL)
≥126
Diagnosis Criteria for Pre-diabetes FPG (mg/dL)
100-125
Diagnosis Criteria for DM OGTT (2hr BG, mg/dL)
≥ 200
Diagnosis Criteria for Pre-diabetes OGTT (2hr BG, mg/dL)
140-199
Treatment goals for A1C for non-pregnant
<7
Treatment goals for Pre-prandial for non-pregnant
80-130
Treatment goals for Pre-prandial for pregnant
≤95
Treatment goals for 2hr PPG for non-pregnant
<180
Treatment goals for 1hr PPG for pregnant
≤140
Treatment goals for 2hr PPG for pregnant
≤120
A1C testing frequency if not at goal
every 3 months
A1C testing frequency if at goal
every 6 months
A1C to estimated average glucose (eAG) math
A1C 6% = 126 mg/dL + additional 1% = 28 mg/dL
Waist circumference goal for females
<35 inches
Waist circumference goal for females
<40 inches
1 serving = ___ grams of carbs (list examples)
15 g of carbs = 1 small piece of fruit, 1 slice of bread, OR ⅓ cup of cooked rice/pasta
Physical Activity recommendation
At least 150 min/week of moderate intensity activity
Reduce sedentary habits, stand every 30 min at minimum
Micro or macrovascular disease: Retinopathy
Microvascular
Micro or macrovascular disease: Diabetic kidney disease (i.e. neuropathy)
Microvascular
Micro or macrovascular disease: Peripheral neuropathy (i.e. loss of sensation, often in feet, increased risk of foot infections and amputations)
Microvascular
Micro or macrovascular disease: Autonomic neuropathy (gastroparesis, loss of bladder control, erectile dysfunction)
Microvascular
Micro or macrovascular disease: Coronary artery disease (CAD), including MI
Macrovascular
Micro or macrovascular disease: Cerebrovascular disease (CVA), including stroke
Macrovascular
Micro or macrovascular disease: Peripheral artery disease (PAD)
Macrovascular
T/F: ASA 81mg is recommended for primary prevention in all patients
False - ASA 81mg daily is recommended for ASCVD secondary prevention (e.g. post-MI)
Alternative for secondary ASCVD prevention in DM patients if aspirin allergy
clopidogrel 75mg daily
High or moderate intensity statin: DM patient with ASCVD
High intensity
High or moderate intensity statin: DM patient age 40-75yo with ≥ 1 ASCVD risk factor
High intensity
High or moderate intensity statin: DM patient age 40-75yo (no ASCVD)
Moderate intensity
High or moderate intensity statin: DM patient age <40 yo with ASCVD risk factors
Moderate intensity
Icosapent ethyl (Vascepa) can be added on for cholesterol control if LDL ___ and TG ____
LDL is controlled but TG is 135-299 mg/dL
DM patient lipid panel monitoring frequency
Annually, 4-12 weeks after starting statin or increasing dose
DM patient eye exam monitoring frequency
eye exam at dx, annually if retinopathy, can defer to every 1-2 years otherwise
Required vaccinations for DM patients (in addition to all childhood vaccines)
Hep B, influenza (annually), pneumococcal vaccines
Diabetic kidney disease definition
eGFR < 60 and/or albuminuria (urine albumin ≥ 30mg/24hrs or UACR≥30 mg/g)
Treatment options for diabetic kidney disease
ACEi/ARB, SGLT2i (if eGFR ≥20) or finerenone (once on max tolerated dose of ACEi/ARB)
DM neuropathy monitoring frequency
Sensation - annually with 10g monofilament test and 1 other test (pinprick, temp, vibration)
Comprehensive foot exam - at least annually
DM Foot care counseling points
Daily: wash, dry, and examine feet, moisturize top and bottom of feet but NOT between toes
Each office visit: check feet
Annually: foot exam by podiatrist
Trim toenails with nail file
Wear socks and shoes, elevate feet when sitting
BP goal for DM patient
<130/80
BP treatment options for DM with no albuminuria or CAD
thiazide, DHP CCB, ACEi/ARB
BP treatment options for DM with albuminuria or CAD
ACEi/ARB
Natural products used for DM
cinnamon, alpha lipoic acid, chromium
LDL goal for DM patients
LDL <55 if ASCVD, <70 for all others
Insulin can be used initially in T2DM patients if ___ or ____
severe hyperglycemia: A1C > 10% or BG ≥ 300
Recommended to start 2 drugs at baseline in T2DM patients if A1C ____
8.5-10%
Start ___ or ___ if T2DM patients has ASCVD, HF, or CKD
GLP1RA or SGLT2i
T2DM medication combinations to avoid
DPP-4i + GLP1RA
SU + insulin
GLP-1 RA MOA
Analogs of GLP-1 hormone which increases glucose-dependent insulin secretion, decreases glucagon secretion, slows gastric emptying/improves satiety (=weight loss)
GLP1RA dose frequency:
Liraglutide (Victoza)
Dulaglutide (Trulicity)
Semaglutide (Ozempic)
Exenatide (Byetta)
Exenatide ER (Byetta BCise)
Liraglutide (Victoza) - SC daily
Dulaglutide (Trulicity) - SC once weekly
Semaglutide (Ozempic) - SC once weekly, PO once daily
Exenatide (Byetta) - SC BID
Exenatide ER (Byetta BCise) - SC once weekly
Dual GLP-1 and GIP agonist dose frequency: Tirzepatide (Mounjaro)
SC weekly
Which GLP1RAs are recommended in patients with ASCVD (or high risk) and as an alternative in CKD because of CV benefits?
Liraglutide (Victoza)
Dulaglutide (Trulicity)
SC semaglutide (Ozempic)
Which GLP1RA also comes in an oral tablet formulation?
Semaglutide (Rybelsus)
GLP1 RA names end in “-___”
“-tide”
GLP1 RA (except Byetta) Boxed warning
increased risk of thyroid C-cell carcinoma
Do NOT use if personal or family hx of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN 2)
GLP1 RA Warnings
Pancreatitis (can be fatal, RF: gallstones, alcoholism, or increased TGs)
NOT recommended in pts with severe GI disease, including gastroparesis
Bydureon BCise warnings
Serious injection-site reactions (e.g. abscess, cellulitis, necrosis) with or w/o SC nodules
Ozempic and Mounjaro warnings
increased complications with diabetic retinopathy
Which GLP1RAs have increased complications with diabetic retinopathy
Ozempic and Mounjaro
Side effects of GLP1RAs and GIP agonists
Weight loss, N/V/D (reduced with dose titration), hypoglycemia, injection site reactions, AKI, gallbladder disease
Tirzepatide: increased HR
GLP1 RA and GIP agonist A1C decrease %
0.5-1.5%
GLP1 RA and GIP agonist effect on BG
decreases postprandial BG
GLP1 RA and GIP agonist hypoglycemic risk
Low
Do NOT use GLP1 RA and GIP agonists with ___ (overlapping mechanism)
DPP-4 inhibitors
Exenatide (Byetta) dose timing with meals
within 60min of meals
Semaglutide (Rybelsus) dose timing with meals
Take does ≥30 min before first food/drink/meds of the day
Pen needles are not provided with ___ or ____ but provided with all other GLP1RAs
Byetta or Victoza
T/F: Glucose-lowering effects are often seen immediately with initial doses of GLP1 RAs
False - often not seen with initial doses (titrated to reduce GI ADEs)
GLP1RAs can (increase/decrease) INR in patients on warfarin
Increase
SGLT2 inhibitor MOA
Inhibits SGLT2 (expressed in proximal renal tubules, responsible for reabsorption of filtered glucose), reduces reabsorption of glucose and increases glucose in urine excretion (decrease BG)
Which SGLT2is have shown benefits in patients with HF, CKD, and/or ASCVD?
Canagliflozin, dapagliflozin, and empagliflozin
SGLT2i names end in “-____”
“-gliflozin”
SGLT2i dosing frequency and timing
once daily in the morning
SGLT2i contraindications
Dialysis
SGLT2i warnings
Ketoacidosis (can occur with BG <250, D/C prior to surgery d/t risk)
Genital mycotic infections, urosepsis, pyelonephritis, necrotizing fasciitis (perineum)
Hypotension, AKI, and renal impairment (d/t intravascular volume depletion)
Canagliflozin (Invokana) warnings
Increase risk of leg and foot amputations, higher risk with hx of amputation, PAD, peripheral neuropathy and/or diabetic foot ulcers
Hyperkalemia risk when used with other drugs that increase potassium
Risk of fractures
SGLT2i side effects
weight loss, increase urination, increase thirst, hypoglycemia, increase Mg/PO4