DM 1 Flashcards

1
Q

obsolete terms

A

-Insulin-dependent diabetes mellitus (IDDM)
-Noninsulin-dependent diabetes mellitus (NIDDM)
-not used anymore -> type 2 can become insulin dependent
-Adult-onset diabetes mellitus - not always children
-children can also get type 2 diabetes
-Non-ketotic diabetes mellitus -> implies there are no ketones but there is always ketones present (not as much as DKA)
-dx is based on the pathogenic process

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2
Q

diabetes

A

-Metabolic disorder
-Hyperglycemia
-Disturbance of carbohydrate, fat, and protein too!
-Relative (2) or complete lack (1) of Insulin
-Common chronic disease
-Acute (1) or sub-clinical (2)
-Complications
-Increases risk of other diseases

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3
Q

DKA

A

-lactic acidosis takes over
-not enough insulin to utilize glucose -> body starts to break down fats
-type 1 higher levels of ketones
-acidotic

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4
Q

insulin

A

-Stimulates skeletal muscle fibers:
-Glucose to glycogen
-Amino acid to protein (does protein synthesis too!)

-Acts on liver cells -> inhibits gluconeogenesis & glycogenolysis
-Acts on adipose cells to synthesize fat
-Acts on hypothalamus to reduce appetite

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5
Q

DM pathophysiology

A

-DM causes secondary pathophysiologic changes in multiple organ systems that impose a tremendous burden on the individual with diabetes and on the health care system
-In US, DM is the leading cause of end-stage renal disease (ESRD), non-traumatic lower extremity amputations, and adult blindness

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6
Q

hyperglycemia

A

-excessive glucose production -> hyperglycemia
-impaired glucose clearance -> hyperglycemia
-hyperglycemia -> tissue injury

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7
Q

type 1 epidemiology

A

-High-risk HLA alleles among ethnic groups in different geographic locations – increases the risk of type 1 DM
-Highest incidence: Scandinavia
-Insulin- 1A and 1B
-Autoimmune
-1/3 - genetic (HLA –DR3 & 4)
-2/3 – environment
-Age of onset- generally young but can be later

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8
Q

type 2 epidemiology

A

-Highest in certain Pacific islands
-Intermediate in: India; US
-Variability is likely due to genetic, behavioral, and environmental factors
-Insulin present but resistant
-Genetic vs. environment
-Age of onset- can be young too

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9
Q

diabetes triad

A

-polyuria
-polydipsia
-polyphagia

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10
Q

type 1 symptoms

A

-acute
-polyuria, polydipsia, polyphagia- not really chronic -> acute
-Unexplained weight loss and easy fatigability
-Ketoacidosis- life threatening
-Irritability, drowsiness, and loss of consciousness
-Dehydration, electrolyte abnormalities (Na, K), osmolality*, and acid-base disturbances (pH <7.2)
-Honeymoon remission- After ketoacidosis, may briefly revert to normoglycemia without requiring therapy (temporary phase)
-dx is usually from DKA -> acute (not insidious)

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11
Q

type 2 symptoms

A

-Often asymptomatic
-Weight loss initially- but overall BMI tends to be high
-acute presentation- Hyperosmolar nonketotic coma, severe dehydration -> Secondary to osmotic diuresis (peeing water and Na out)
-PMH: Frequent/recurrent infections, poor wound healing, blurring of vision, and numbness or tingling in the extremities

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12
Q

risk factors for and complications of diabetes

A

-CAUSES
-over weight and obesity
-genetics
-HTN
-gestational diabetes- dont use A1c - past 3 months -> not accurate to the baby

-EFFECTS
-retinopathy
-neuropathy
-nephropathy
-cardiovascular disease
-amputation

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13
Q

components of the comprehensive diabetes evaluation- medical hx

A

-Age and characteristics of onset of diabetes (e.g., DKA, asymptomatic lab finding)
-Eating patterns (nutritionist), physical activity habits, nutritional status, and wt hx; growth and development in children and adolescents
-Diabetes education hx
-Review of previous tx regimens and response to therapy (A1C records)
-Current tx of diabetes, including meds, meal plan, physical activity patterns, and results of glucose monitoring and patient’s use of data
-DKA frequency, severity, and cause
-PATIENT COMPLIANCE IS EVERYTHING!

-Hypoglycemic episodes
-Hypoglycemia awareness- worse
-Any severe hypoglycemia: frequency and cause

-History of diabetes-related complications
-Microvascular: retinopathy, nephropathy, neuropathy (sensory, including history of foot lesions; autonomic, including sexual dysfunction and gastroparesis)
-Macrovascular: CHD, cerebrovascular disease, PAD
-Other: psychosocial problems, dental disease

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14
Q

physical exam

A

-Height, weight, BMI
-Blood pressure determination, including orthostatic measurements when indicated
-Fundoscopic examination- 1st appt -> if normal f/u 1 year
-Thyroid palpation- other autoimmune problems
-Skin examination (for acanthosis nigricans and insulin injection sites)

-Comprehensive foot examination:
-Inspection
-Palpation of dorsalis pedis and posterior tibial pulses
-Presence/absence of patellar and Achilles reflexes
-Determination of proprioception, vibration, and monofilament sensation

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15
Q

BMI

A

-Underweight = <18.5
-Normal weight = 18.5–24.9
-Overweight = 25–29.9
-Obesity = BMI of 30 or greater

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16
Q

why do we screen?

A

-Screening test is recommended because:
-(1) a large number of individuals who meet the current criteria for DM are asymptomatic and unaware that they have the disorder
-(2) epidemiologic studies suggest that type 2 DM may be present for up to a decade before diagnosis
-(3) as many as 50% of individuals with type 2 DM have one or more diabetes-specific complications at the time of their diagnosis
-(4) treatment of type 2 DM may favorably alter the natural history of DM

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17
Q

criteria for dx of prediabetes and diabetes

A
  1. Glycated hemoglobin (A1C) ≥6.5%.
    The test should be performed in a laboratory using a method that is National Glycohemoglobin Standardization Program (NGSP) certified and standardized to the Diabetes Control and Complications Trial (DCCT) assay.
    OR
  2. Fasting plasma glucose (FPG) ≥126 mg/dL (7.0 mmol/L) -> repeat it if high to confirm
    OR
  3. 2-hour plasma glucose ≥200 mg/dL (11.1 mmol/L) during an oral glucose tolerance test (OGTT) -> 2 hours after eating you should have glucose and insulin go down
    OR
  4. In a patient with classic symptoms of hyperglycemia or hyperglycemic crisis (triad), a random plasma glucose ≥200 mg/dl (11.1 mmol/L)
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18
Q

criteria for screening diabetes or prediabetes in asymptomatic adults

A

-1. testing considered in adults with overweight or obesity (BMI >= 25 or 23 in asians) who have 1 or more risk factors:
-1st degree relative with diabetes
-high risk race/ethnicity (african american, latino, native american, asian, pacific islander)
-hx of CVD
-women who delivered a baby weight >9 lbs or were dx with GDM
-hypertension (>130/80 or on med for HTN)- use ACE
-HDL cholesterol < 35 and/or triglyceride level >250
-pts with PCOS
-physical inactivity
-other clinical assoc with insulin resistance (severe obesity, acanthosis nigricans)
-2. people with prediabetes (A1C >= 5.7) -> should be tested yearly
-3. people dx with GDM should have lifelong testing at least every 3 years
-4. all others -> testing should begin at age 35
-5. if results are normal -> repeat at min of 3 years -> consider more frequent testing depending on initial results and risk status
-6. pts with HIV

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19
Q

criteria for the dx diabetes mellitus

A

-Fasting is defined as no caloric intake for at least 8 h.
-test should be performed using a glucose load containing the equivalent of 75g (50 in pregnant) anhydrous glucose dissolved in water; not recommended for routine clinical use.
-Random is defined as without regard to time since the last meal
-Note: In the absence of unequivocal hyperglycemia and acute metabolic decompensation, these criteria should be confirmed by repeat testing on a different day.

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20
Q

criteria for prediabetes

A

-FPG 100 mg/dL (5.6 mmol/L) to 125 mg/dL (6.9 mmol/L) (IFG)
OR

-2-h PG during 75-g OGTT 140 mg/dL (7.8 mmol/L) to 199 mg/dL (11.0 mmol/L) (IGT)
OR

-A1C 5.7–6.4% (39–47 mmol/mol)

-FPG, fasting plasma glucose; IFG, impaired fasting glucose; IGT, impaired glucose tolerance; OGTT, oral glucose tolerance test; 2-h PG, 2-h plasma glucose. *For all three tests, risk is continuous, extending below the lower limit of the range and becoming disproportionately greater at the higher end of the range

21
Q

IFG

A

-Impaired fasting glucose
-Defined by a fasting plasma glucose of 100-125mg/dL (prediabetic)
-this group is at higher likelihood of developing type 2 diabetes -> may be already at increased risk for macrovascular (cardiovascular) complications
-you want to start implementing diet and lifestyle modifications here !! -> check BP and lipids -> start statins if needed etc.

22
Q

IGT

A

-Impaired glucose tolerance
-2h after a glucose load of 75g it is 140-199mg/dL
-Associated with increased risk of developing DM & ischemic heart disease
-Annual screening recommended
-CHD risk factors treated aggressively
-qualitative detection of ketone bodies -> using acetest or ketostix -> tests ketones in urine

23
Q

OGTT

A

-pt should be on balanced diet, containing normal daily requirement of carbs, at least 2-3 days prior to test
-Pts should avoid drugs likely to influence blood glucose levels, at least 2 days prior to test.
-Pt should report to lab after FASTING for 12-16 hours
-He/She can drink water
-All samples should be venous preferably
-If capillary blood from ‘finger-prick’ is used, all samples should be capillary
-Pts should be in a position to wait at the lab for at least 2-3 hours, since 5 or more blood samples are collected at the interval of 30 minutes.

-Conduction of OGTT
-fasting sample of venous blood is collected in a fluoride vial.
-bladder is emptied completely and urine is collected for qualitative test for glucose and ketone bodies
-pt given 75g of glucose dissolved in water
-Note the time of oral glucose administration.
-total of 5 specimens of venous blood and urine are collected every 30 min
-Glucose content of all 5 samples of blood are estimated by the specific methods used in laboratory
-Corresponding urine samples are tested qualitatively for the presence of glucose and ketone bodies.
-curve is plotted by plotting time on X-axis and plasma glucose level on Y-axis, which is called Glucose Tolerance Curve (GTC)
->200 at 2 hrs - DM
-140-199- prediabetes

24
Q

OGTT results

A

-NO DIABETES
-fasting- <= 100
-2 hours- <140
-no excess micro- nor macro-vascular risk

-PREDIABETES
-fasting- 100-125
-2 hours- 140-199
-excess macro- but not micro-vascular risk

-DIABETES
-fasting- >= 126
-2 hours- >=200
-excess macro- and micro vascular risk

25
Q

testing for type 2 diabetes or prediabetes in asymptomatic children criteria

A

-Overweight (BMI .85th percentile for age and sex, weight for height .85th percentile, or weight .120% of ideal for height)

-Plus any 2 of the following risk factors:
-Family history of type 2 diabetes in first- or second-degree relative
-Race/ethnicity (Native American, African American, Latino, Asian American, Pacific Islander)
-Signs of insulin resistance or conditions associated with insulin resistance (acanthosis nigricans, hypertension, dyslipidemia, polycystic ovary syndrome, or small-for-gestational age birth weight)
-Maternal history of diabetes or GDM during the child’s gestation
-Age of initiation: age 10 years or at onset of puberty, if puberty occurs at a younger age

-Frequency: every 3 years
*Persons aged ≤ 18 years

26
Q

improving care and promoting health in populations

A

-Care teams
-Telehealth
-Behaviors and well being
-Tailoring Treatment for Social Context** -> if pt is not on board nothing will get done
-Social Determinants of Health [SDOH]

27
Q

decision cycle for person-centered glycemic management in type 2 diabetes picture

A

-comorbidities
-mental health
-motivation
-negotiation, sharing
-access to education and support
-needle vs no needle
-review information
-side effects
-agree on management
-fasting
-hypoglycemia #- threshold is diff for everyone -> pt requires assistance to prevent neurological changes that present- coma

28
Q

SMART goals

A

-specific goals- walk around the block
-measurable- 3x a week
-achievable- negotiate
-realistic
-time- in a given period of time, FU

29
Q

social determinants of health

A

-education access and quality
-health care access and quality
-neighborhood and built environment- safe, expensive, food security**
-social and community context- resources
-economic stability- employed, supportive system

30
Q

risk based screening for type 2 diabetes or prediabetes in asymptomatic children and adolescants in a clinical setting

A

-Screening should be considered in youth* who have overweight (≥ 85th percentile) or obesity (≥ 95th percentile) and who have one or more additional risk factors based on the strength of their association with diabetes:
-Maternal history of diabetes or GDM during the child’s gestation
-Family history of type 2 diabetes in first- or second-degree relative
-Race/ethnicity (Native American, African American, Latino, Asian American, Pacific Islander)
-Signs of insulin resistance or conditions associated with insulin resistance (acanthosis nigricans (flexors, hands), hypertension, dyslipidemia, polycystic ovary syndrome, or small-for-gestational-age birth weight)

*After the onset of puberty or after 10 years of age, whichever occurs earlier. If tests are normal, repeat testing at a minimum of 3-year intervals (or more frequently if BMI is increasing or risk factor profile deteriorating) is recommended. Reports of type 2 diabetes before age 10 years exist, and this can be considered with numerous risk factors

31
Q

prevention or delay of type 2 diabetes and associated combidities

A

-monitor pre-diabetes at least annually for development of type 2 -> modify based on risk/ benefit assessment.
-if overweight/obesity and high risk of type 2 -> achieve and maintain a weight reduction of at least 7% by diet and ≥ 150 minutes/week of moderate-intensity physical activity
-Pharmacologic interventions
-Person-centered care goals

32
Q

treatment goals

A

-alleviated symptoms
-minimize development of long term complications
-enhance quality of life
-reduce mortality
-Good glycemic control
-Good control of blood pressure
-Lipid lowering
-Monitoring for and treatment of diabetic nephropathy
-Monitoring for and treatment of diabetic retinopathy
-Foot care
-Prevention and treatment of other complications
-Lifestyle management, e.g. smoking cessation, weight control, and dietary measures
-Care of pregnant women with diabetes and pre-pregnancy counseling

33
Q

targets and goals of tx: nutrition

A

-refer to nutritionist
-Effectiveness of nutrition therapy
-Energy balance
-Eating patterns
-Dietary Fat - monounsaturated
-Protein
-Micronutrients, supplements
-Alcohol
-Men vs. Women
-Delayed hypoglycemia with Insulin

-Sodium
-Non-nutritive sweeteners

-DASH- vegetables, fruits, whole grains
-including fat free or low fat dairy products, fish, poultry, beans, nuts, and vegetable oils
-limiting foods that are high in saturated fat, such as fatty meats, full fat dairy products, and tropical oils such as coconut, palm kernel, and palm oils
-limiting sugar sweetened beverages and sweets

34
Q

diabetes self management support (DSMS) and diabetes self management education (DSME)

A

-4 critical times when these have to be evaluated:
-1. At diagnosis
-2. Annually for assessment of education, nutrition, and emotional needs
-3. When new complicating factors (health conditions, physical limitations, emotional factors, or basic living needs) arise that influence self-management
-4. When transitions in care occur

-Appropriate referrals should be made as needed
-medical nutrition therapy- MNT

35
Q

key concepts in setting glycemic goals

A

-A1C is the primary target for glycemic control.
-Goals should be individualized based on:
-Duration of diabetes.
-Age/Life expectancy.
-Co-morbid conditions.
-Known ASCVD or advanced microvascular complications.
-Hypoglycemia unawareness.
-Individual patient considerations.
-More or less stringent glycemic goals may be appropriate for individual patients.
-Postprandial glucose may be targeted if A1C goals are not met despite reaching pre-prandial glucose goals

36
Q

referrals

A

-Annual dilated eye exam
-Family planning for women of reproductive age – ideally preconception
-Registered dietitian for MNT
-DSME (Delivery of diabetes self-management education )
-DSMS (Diabetes self-management support)
-Dental examination
-Mental health professional, if needed

37
Q

ADA recommendations

A

-Patient education – injections, monitoring Blood Sugar
-Dietary & life style changes (smoking cessation; regular exercise)
-Surgical interventions
-Tight BP control : ≤130/80
-Use of ACEI/ARBS

-Lipid level goals:
-LDL <70mg/dL (<2.6mmol/L)
-Triglycerides <150mg/dL (<1.7mmol/L)
-HDL >40mg/dL (>1.1mmol/L) ; Rx: statin

-Increased risk of infections - Vaccines
-Regular ophthalmic, foot care;
-Other specialty referrals (cardiology; nephrology)
-Dental exam

38
Q

follow up management

A

-HbA1c
-Measured quarterly if treatment is changed or if the patient is not meeting management goals
-Every 6-12 months if stable
-Microalbuminuria (albumin/creatinine ratio)- At diagnosis and then every year
-Blood lipids tested on initial visit and then annually, or as needed

39
Q

other labs to evaluate

A

-A1C, if results not available within past 2–3 months
-If not performed/available within past year:
-Fasting lipid profile, including total, LDL, and HDL cholesterol and triglycerides
-Liver function tests
-Test for urine albumin excretion with spot urine albumin-to-creatinine ratio
-Serum creatinine and calculated GFR
-TSH in type 1 diabetes, dyslipidemia or women over age 50
-*C-peptide level: indicates production of insulin
*Low level/ no insulin C-peptide) indicates that your pancreas is producing little or no insulin

40
Q

DSME

A

-increase adherence to standard of care and educating pts on glycemic targets and improves the percentage of pts who reach goal A1c

41
Q

self management training

A

-Management Principles and Complications:
-Initially and yearly
-Assess knowledge of diabetes, medications, self-monitoring, acute/chronic complications, and problem-solving skills
-Ongoing: Screen for problems with and barriers to self-care
-Sequential therapies, including insulin, likely to be necessary
-Lifestyle issues including nutrition, physical activity, and smoking cessation
-Assist patient to identify achievable self-care goals
-For children: As appropriate for developmental stage
-Resources available in the community

42
Q

self monitoring blood glucose (SMBG)

A

-Type 1: Typically test 3-4 times a day
-Type 2 and others: As needed to meet treatment goals
-Medical Nutrition Therapy (by trained expert):
-Initially: Assess needs/condition; assist patient in setting nutrition goals
-Ongoing: Assess progress toward goals; identify problem areas

43
Q

self management training: physical activity and weight management

A

-Physical Activity- Initially and ongoing: Assess and prescribe physical activity based on patient’s needs/condition.
-Weight Management- Initially and ongoing: Must be individualized for patient

44
Q

interventions

A

-Preconception, Pregnancy, and Postpartum Counseling and Management: Consult with high-risk, multidisciplinary perinatal/neonatal programs and providers where available (e.g., California Diabetes and Pregnancy Program “Sweet Success”).
-
For adolescents: Age appropriate counseling advisable, beginning with puberty.
-Aspirin Therapy: 81 to 325 mg/day or 325 mg every other day in adults as primary and secondary prevention of cardiovascular disease, unless contraindicated
-
Smoking Cessation: Screen, advise, access readiness to quit, and assist at every diabetes care visit, adjusting the frequency as appropriate to the patient’s response -> Refer to Helpline
-Immunizations- Influenza and pneumococcal, per CDC recommendations
-
Psychosocial assessment- Barriers to self-care: common environmental obstacles, cultural issues, beliefs and feelings about diabetes, disorders of eating and mood, life stresses, and substance use

45
Q

dawn phenomena

A

-Pathophysiology:
-Waning-off ofInsulinaction in AM hours
-Secondary to increased nocturnal GH output
-Results in high AMBlood Sugars

-Diagnosis- Checking 3 amBlood Sugar
-Management- increase evening long-actingInsulin(NPH) dose

46
Q

somogyi phenomena

A

-Rebound Hyperglycemia
-Pathophysiology
-Rebound Hyperglycemia inDiabetes Mellitus
-Follows a hypoglycemic reaction during the night
-Diagnosis- Checking 3 amBlood Sugar
-Management- Decrease evening long-actingInsulin(NPH) dose

47
Q

hypoglycemia chart

A
48
Q

KNOW THIS

A

glycemic control= less symptoms

49
Q

KNOW THIS 2

A