PRE-DIABETES & T2DM Flashcards
Group of diseases characterized by prolonged hyperglycemia
Diabetes Mellitus
Defects that cause DM
- insulin secretion
- insulin action
- both secretion and action
T or F: DM contributes to increase in Morbidity and mortality
TRUE
How to reduce effect of DM
Early diagnosis and treatment
Cells that release insulin
Pancreatic beta cells from islets of langerhans
Cells that release glucagon
Pancreatic alpha cells from islets of langerhans
Categories of glucose intolerance
- pre-diabetes
- T1DM
- T2DM
- GDM
- Other types
Impairment of pre-diabetes
- impaired fasting glucose
- impaired glucose tolerance
one step before diabetes
pre-diabetes
what conditions are you susceptible to if pre-diabetic
- diabetes mellitus
- cardiovascular diseases
How many test should you be positive to be considered pre-diabetic
1 test
tests to diagnose pre-diabetes
- impaired fasting glucose
- impaired glucose tolerance
- hemoglobin A1C (HbAIC)
How many hours do you need to fast for Impaired fasting glucose
8 hrs
primary intervention for pre-diabetes
lifestyle modification
minimum weight loss required for pre-diabetes
5%
based on clinical trials, what are the primary interventions for pre-diabetes
- weight loss 5% - 10%
- physical activity of at least 150 min/week of moderate activity
- ongoing counseling and support
What drug has the strongest evidence for DM prevention
metformin
T or F: Drugs/Medications are most effective way in managing diabetes or preventing diabetes
False, lifestyle modifications are more recommended
Benefits of physical activity
- improves blood glucose control in T2DM
- improve insulin sensitivity independent of weight loss
- reduce CVD risk factors
- contribute to overall well-being
Recommendations for physical activity for pre-diabetes
- moderate-intensity aerobic PA minimum of 30 mins, 5 days per week (150 min/week) OR vigorous-intensity aerobic PA minimum of 20 minutes, 3 days per week (90 min/week)
- muscle-strengthening activities involving major muscle groups 2 days per week
Diagnostic criteria of Pre-diabetes for each test
- IFG: 100-125 mg/dL
- IGT: 140-199 mg/dL
- HbAIC: 5.7-6.4%
Factors taken into account when meal planning
- health status
- Food preferences
- Food security
- Housing situation
How to maintain the pleasure of eating for pre-diabetic patients
provide nonjudgmental messages about food choices
Recommended healthy lifestyle habits
- develop healthy eating pattern
- regular physical activity
- achieve and maintain body weight goals
- moderate alcohol intake and being a nonsmoker
Benefit of healthy lifestyle habits
reduce risk of T2DM in women (84%) and men (72%)
What type of diet/eating pattern is recommended for pre-diabetes
Mediterranean-style
How much fish and wine is recommended
moderate amounts
What is included in Mediterranean-style diet
high levels of MUFA such as olive oil, high intake of plant-based food such as vegetables, legumes, fruits, and nuts
T or F: It is recommended to eat more red meat and whole-fat dairy products
False
recommended fiber intake for pre-diabetes
14 g/1000 kcal
Benefits of increased fiber intake
- improve insulin sensitivity
- improve insulin secretion to overcome insulin resistance
Recommended amount of alcohol for consumption
1-3 drinks/day or 15-45 g
What types of SSBs should be limited
- soft drinks
- fruit drinks
- energy and vitamin water-type drinks
what type of fat is associated with increased markers of insulin resistance and risk of T2DM
SFA and Trans fats
What effect does increased consumption of unsaturated fatty acids have
inverse risk of diabetes
T2DM accounts for ___% of all diagnosed cases of DM
90-95%
T or F: T2DM is likely to be present long before it is diagnosed
True
Primary metabolic abnormality in T2DM
Hyperglycemia
What does it mean if symptoms of T2DM show
body cannot handle hyperglycemia anymore
what kind of complications will develop from hyperglycemia
microvascular and macrovascular complications
what physical sign is often associated with hyperglycemia
non-healing wounds
usual bmi profule of T2DM patients
obese: bmi greater than or equal to 30 kg/m^2
what are small plasma proteins produced by adipose tissue that can contribute to insulin resistance
adipokine
what are 2 adipokines that promote insulin resistance
TNF alpha (TNF-a) and Interleukin 6 (IL-6)
fatty acids promote lipid overflow and are stored in what tissues/organs
skeletal muscle, liver, pancreas
Risk factors of T2DM
- family history of diabetes
- older age
- physical inactivity
- prior history of gestational diabetes, prediabetes, hypertension, or dyslipidemia
pathophysiology: T2DM is a combination of ___
insulin resistance and B-cell failure
upon diagnosis of T2DM, there is already a ____% reduction in B-cell function
24-65%
Target tissues of insulin resistance
muscle, liver, and adipose cells
what is it called when the pancreas is unable to continue producing adequate insulin
pancreatic decompensation
what causes lipotoxicity
- lipolysis and elevation of circulating FFAs
- excess intraabdominal obesity causing increased influx of FFAs to the liver
effect of lipotoxicity
- decrease insulin sensitivity at the cellular level, impairs pancreatic insulin secretion, & disrupts hepatic glucose production
how is hyperglycemia first exhibited
elevation of postprandial blood glucose caused by insulin resistance at cellular level
after elevation of postprandial blood glucose, what is the following sign of hyperglycemia
elevation of fasting glucose concentrations
as insulin secretion decreases, hepatic glucose production ____
increases
what is the cause of elevated fasting blood glucose
liver signals glycogenolysis to compensate for the lack of glucose in cells as a result of insulin insensitivity
what function of the pancreas increases hepatic glucose production
pancreatic alpha cells produce glucagon to signal glycogenolysis and gluconeogenesis
what causes redox stress in the islets of langerhans
glucotoxicity
3 classical symptoms of T2DM
- polydipsia
- polyuria
- polyphagia
T or F: T2DM patients are prone to diabetic ketoacidosis
False, T1DM are more prone to DKA
when does DKA happen in T2DM patients
under severe stress
What risk factors, when combined with obesity, indicate the need for diabetes screening in adults
- 1st degree relative with diabetes
- high risk race/ethnicity (African American, Latino, Native American, Asian American, Pacific Islander)
- History of CVD
- Hypertension
- HDL-cholesterol lvl >35 mg/dL or TAG lvl >250 mg/dL
- women w/ PCOS
- physical inactivity
- other clinical conditions associated with insulin resistance
what other factos should be considered for screening in adults
- patients with prediabetes (yearly)
- women diagnosed with GDM
- 45 years old
- HIV
What risk factors, when combined with obesity/overweight, indicate the need for diabetes screening in children/adolescents
- maternal history of diabetes/GDM
- family history of T2DM in 1st or 2nd degree relative
- race/ethnicity
- signs of insulin resistance (acanthosis nigricans, hpn, dylipidemia, small-for- gestational age birth weight
diagnostic criteria for T2DM
- HbAIC = greater than or equal to 6.5%
- fasting plasma glucose = greater than or equal to 126 ml/dL
- 2 hr post-challenge glucose = greater than or equal to 200 mg/dL
- random plasma glucose = greater than or equal to 200 mg/dL
diagnostic criteria to differentiate T1DM from T2DM
T1DM = low C-peptide
T2DM = high C-peptide
how does HbAIC work?
blood sugar attaches to hemoglobin
How long does HbA1c represent average blood glucose levels
approx 3 months
components of medical management in T2DM
- MNT
- physical activity
- blood glucose monitoring
- medications
- self-management education and support
what is the progression of pharmacological management in T2DM patients
oral hyperglycemic agents first then injectable insulin
target improvement goals of MNT for T2DM
- improve AIC, blood pressure, and cholesterol levels
- achieve and maintain body weight goals
- delay or prevent progression of diabetes
how many MNT encounters during the first 6 months
3-6
minimum annual MNT follow up encounter
1
ideal macronutrient distribution
no ideal percentage
key strategy to achieve glycemic targets
assessment of current diet intake followed by individualized guidance on self-monitoring carbohydrate intake
recommended fiber intake for T2DM
14 g/1000 kcal
key factors commonly focused on for eating pattern
- emphasize non-starchy vegetable
- minimize added sugar and refined grains
- whole foods over processed foods
eating pattern recommendation with the most evidence in improving glycemia
reduce overall CHO intake
what is a viable approach for adults with T2DM not meeting glycemic targets
low or very low CHO eating plans
MNT recommendation to lose weight
energy deficit individualized eating plan with enhanced physical activity
simple an effective approach to glycemia & weight management for patients not taking insulin and limited health literacy
emphasize appropriate portion size & healthy eating
minimum weight loss required for T2DM
5%
weight loss to achieve optimal outcome
greater than or equal to 15%
weight loss in prediabetes to prevent progression to T2DM
7-10%
T or F: medication-assisted weight loss can be considered for people at risk for T2DM to achieve 7-10% weight loss
True
type of intervention for prediabetes at a healthy weight
lifestyle intervention (aerobic and resistance exercise w/ healthy eating plan)
what should SSBs be replaced with
water
what should be done if sugar substitutes are used to reduce overall calorie and CHO intake
counseling to avoid compensating from other food sources
T or F: Routine use of vitamins and mineral supplements are recommended
false
what vitamin should be assessed if patient is taking metformin
B12
recommendation for adults with fixed daily insulin doses
consistent CHO intake with respect to time and amount while considering insulin action time
what to consider when consuming mixed meal with CHO and high in fat
- insulin dosing should not be based solely on CHO counting
- increase mealtime insulin as suggested
- continuous glucose monitoring or self-monitoring of blood glucose to guide administration of additional insulin
what to replace saturated fats with?
unsaturated fat
what to replace foods high in CHO
foods low in CHO and high in fat (high unsaturated fat)
recommended amount of sodium
<2,300 mg/day
servings of fatty fish per week
at least 2
lowering protein does not alter the?
- glycemic measures
- CVD risk
- GFR decline
but can increase risk of malnutrition
MNT for prevention and management of gastroparesis
- selection of small-particle size foods
- correcting hyperglycemia
- use of CGM and/or insulin pump therapy
recommendations for glycemic control for T2DM
- AIC = <7%
- preprandial capillary plasma glucose = 80-130 mg/dL
- <180 mg/dL