Chapter 44: Diabetes Flashcards
Without insulin, glucose cannot enter muscle cells and the body goes into starvation mode & starts to metabolize ___ into ___ to use an an alternative energy source
fat
ketones
(very high ketone levels can cause DKA)
Which protein is used to test if T1D is present
C-peptide
T1D is diagnosed when there is a ____ C-peptide level
very low or absent
C-peptide is released by the pancreas only when insulin is present
Which factors can increase the likelihood of insulin resistance, and eventually T2D
lifestyle, genetics, other RF (low level of physical activity, being overweight or obese)
Which drug is used to delay T2D if younger (< 60 years) but higher-risk, with moderate obesity (BMI > 35) and/or a history of gestational diabetes
Metformin
T/F: prediabetes can be reversed
true - with a healthier lifestyle. BG should be checked annually to see if the condition has progressed to T2D
Babies born to mothers who had hyperglycemia during the pregnancy are larger than normal, which is called
fetal macrosomia
These babies are at higher risk for developing obesity and diabetes later in life
Which test is preferred for pregnant women to test for GDM
OGTT
Which medication is preferred in pregnant women to reduce hyperglycemia
Insulin
Lifestyle with diet an exercise should be tried first
What are the macrovascular diseases caused by diabetes
Atherosclerosis –> ASCVD (CAD, CVA, PAD)
What are the microvascular diseases caused by diabetes
Retinopathy
Nephropathy
Neuropathy
Autonomic neuropathy (ED, gastroparesis, loss of bladder control, UTIs)
What are the classic symptoms caused by high BG
Polyuria
Polyphagia
Polydipsia
(other sx which may be the only sx present in T2D include fatigue, blurry vision, ED, and vaginal fungal infections)
Who should be tested for diabetes and at which age
Everyone starting at 35 with no RF, test everyone with at least 1 RF
All asymptomatic children, adolescents and adults who are overweight (BMI >/= __ or >/= __ in Asian Americans) with at least one other RF (e.g., physical inactivity) should be tested for diabetes
25
23
Diagnostic tests:
- Hgb A1c indicates the average BG over the past __ months
- FBG gives the BG at that moment, and is taken after an >/= __-hour fast
- OGTT measures how well a very sugary drink is tolerated by measuring ___ levels
3
8
PPG
A positive result from diagnostic tests is an A1C >/= __% or FBG >/= __ mg/dL must be confirmed by testing again with the same or with a new blood sample or with another diagnostic test
6.5%
126 mg/dL
The A1c should be measured every __ months if not yet at goal
If at goal, the test should be repeated every __ months
3 months (quarterly) 6 months
Diagnosis for diabetes:
A1C:
FPG:
2-hour PPG after OGTT or classic sx + random BG:
> / = 6.5%
/ = 126 mg/dL
/ = 200
Diagnosis for prediabetes:
A1C:
FPG:
2-hour PPG after OGTT or classic sx + random BG:
5.7-6.4%
100-125
140-199
Treatment goals for non-pregnant patients with diabetes:
A1C:
Preprandial:
2-hr PPG:
< 7%
80-130
< 180
Treatment goals for pregnant patients with diabetes:
Preprandial:
1-hr PPG:
2-hr PPG:
< / = 95
< / = 140
< / = 120
The estimated eAG is an interpretation of the A1C value. An A1C of 6% is equivalent to an eAG of ___ mg/dL. Each additional 1% increases the eAG by ~___ mg/dL
126
28
Everyone with any risk of diabetes, including simply getting older, should quit smoking and get moving, with at least __ min of physical activity weekly, spread over at least __ days, with aerobics and resistance exercise (e.g., with weights)
150 min
3 days
Antiplatelet therapy:
Aspirin __ mg/day is recommended for ASCVD secondary prevention (e.g., post-MI), but not recommended for primary prevention.
It is used in pregnancy to ↓ risk of ___
81 mg/day
preeclampsia
**new update: ASA + low dose rivaroxaban can be added to pts wth CAD and/or PAD
Cholesterol control:
__ lipid pannel.
-Diabetes + ASCVD with multiple ASCVD RF should get which statins
-Diabetes without ASCVD and older should get which intensity statin
-Diabetes without ASCVD and younger (<40)
- High-intensity: atorvastatin 40-80 mg or rosuvastatin 20-40 mg
- moderate-intensity
- no ASCVD RF = no statin; ASCVD RF = moderate
Neuropathy:
- Annually, which tests should be performed
- What are treatment options
10-g monofilament test and 1 other test to assess sensation
Pregabalin, duloxetine, and gabapentin
Foot care counseling
- Every day: examine feet, wash and dry
- Annual foot exam
- Moisturize top and bottom of feet but not in between toes
- Trim toenails with nail file
- Wear socks and shoes. Elevate feet when sitting
Weight control:
A healthy weight circumference is key to reducing insulin resistance (< __” females, < __” males)
35
40
Diabetic retinopathy:
- Type 2, when diagnosed, get eye exam with ___. If retinopathy, repeat ___.
- To ↓ risk/slow progression:
dilation
annually
stop smoking, control BG, BP and cholesterol
BP control & kidney disease:
- ACC/AHA goal BP
- ADA goal BP
- Diabetes with HTN, no albuminuria tx
- Diabetes with albuminuria +/- HTN tx
- Diabetes with CAD tx
- No kidney disease: check urine for albumin ___
- Kidney disease: check urine for albumin ___
- < 130/80
- < 130/80 if higher ASCVD risk (>/= 15%); if not, use < 140/90
- no albuminuria: Thiazide, CCB, ACEi, or ARB
- with albuminuria: ACEi or ARB
- CAD: ACEi or ARB (new update)***
- no kidney disease: yearly
- kidney disease: twice yearly
Albuminuria is either a urine albumin >/= __ mg/24 hours or a UACR >/= __ mg/g
30
30
Vaccinations for diabetes
- Hep B series
- Influenza annually
- PPSV23: one dose before age 65, another dose at age 65+ if it has been 5 years since the first dose
Natural products that can be used in diabetes
Cassia cinnamon
alpha lipoic acid
chromium
treatment for T2D:
If patient has HF, CKD, ASCVD/high ASCVD risk, everyone regardless of A1C should get which therapies if:
- ASCVD major issue
- HF or CKD major issue:
- ASCVD major issue: use GLP-1 with CVD benefit (dulaglutide, liraglutide, semaglutide SC inj only) OR SGLT2 (empagliflozin, canagliflozin) if eGFR adequate (CI if < 30)
- HF or CKD major issue: SGLT2 first that reduces HF and/or CKD progression (empa, cana, dapa) if eGFR adequate. If cannot use SGLT2, use dulaglutide, liraglutide, semaglutide SC inj only
Which drugs have little to no risk of hypoglycemia
DPP4i
GLP1
SGLT2
TZD
Which two diabetes meds have a similar MOA and should NOT be used together
DPP4 and GLP
Best options for T2D if need weight loss
GLP1 (sema, lira, dula) or SGLT2
First line treatment for T2D
Metformin
Metformin is CI in eGFR < ___
30
Insulin can be used initially if hyperglycemia is severe (A1C > ___ or BG > ___)
10%
300 mg/dL
How to add basal insulin in T2D
Start 10 units a day or 0.1-0.2 units/kg/day
If hypoglycemia, ↓ dose by 10-20%
If patient is on bedtime NPH and you want to convert to BID NPH regimen, how would you convert it
Total dose = 80% of current bedtime NPH dose
2/3 given in AM
1/3 given at bedtime
How to add prandial insulin in T2D
Start 4 units a day or 10% of basal insulin dose
If A1C < 8%, consider ↓ basal dose by 4 units a day or 10% of basal dose
Titrate: ↑ dose by 1-2 units or 10-15% twice weekly
if hypoglycemia, ↓ dose by 10-20%
In T2D, which medication class should be started prior to insulin in most pts
GLP (exception is if A1C > 10% or BG > 300 mg/dL)
What are the 2 big similarities with the top 3 treatments for T2D
Weight loss and no hypoglycemia (Metformin, GLP and SGLT2)
Metformin MOA
↓ hepatic glucose output
Starting dose for metformin IR & ER
IR: 500 mg PO daily or BID
ER: 500 mg PO daily with dinner
ER formulation of metformin counseling point
Leaves a ghost tablet in the stool
Metformin BW
Lactic acidosis - ↑ risk with renal disease
Metformin warnings
Do not START with eGFR 30-45
B12 deficiency
Lactic acidosis ~ Stop prior to iodinated contrast media, incr risk with renal impairment, avoid excessive alcohol
Metformin CI
eGFR < 30
acute or chronic metabolic acidosis
Which drugs are TZDs
Pioglitazone (Actos)
Rosiglitazone (Avandia)
TZD BW
Do not use with NYHA Class III/IV HF
Rosi: incr risk of MI
TZDs are rosiglitazone and pioglitazone
TZD warnings/SE
Edema (macular, peripheral)
Weight gain
Can cause or worsen HF
Risk of fractures
[Can stimulate ovulation
Pioglitazone: avoid with bladder CA history]