What are complications of DM?
Lower-extremity amputations Heart disease Stroke Neuropathy Diabetic eye disease (retinopathy) ESRD
7th leading cause of death!
DKA (DM1 >DM2)
What are the types of DM?
Type 1: autoimmune disease, beta cell destruction, typically younger patients
Type 2: progressive insulin secretory defect
Gestational (GDM): occurs during 3rd trimester, increases your risk of type 2 in future
Others:
Genetic defects in beta cell function, insulin action
Diseases of exocrine pancreas
Drug- or chemical-induced
Progressive Nature of Type 2 DM
Prediabetes and associated defects can go on for 10-15 years before diagnosis (often involve obesity, IFG, and impaired glucose tolerance)
By the time of diagnosis, typically about 50% of beta cells have already failed
How does DM impact a person’s glucagon and insulin dynamics post meals?
Glucose: increased and prolonged endogenous release
Insulin: very little released from defective beta cells
Glucagon: continued release of glucagon even after a meal (this is abnormal)
Who should you test for DM?
Adults who are overweight (BMI >25…or >23 in Asians) and who have 1 or more of the following:
ALL patients over the age of 45
How frequently should you test for DM?
If tests are normal, testing should be repeated at least every 3 years
If pt has prediabetes, re-test yearly
When can you diagnose DM?
OR
4. Patient with classic sx of hyperglycemia/hyperglycemic crisis and a random plasma glucose >200
What are microvascular complications of DM? (Ask about these in ROS)
Retinopathy
Nephropathy
Neuropathy: sensory – foot lesions 2/2 LOPS (loss of peripheral sensation); autonomic – sexual dysfunction and gastroparesis
What are macrovascular complications of DM? (Ask about these in ROS)
CHD
cerebrovascular disease
PAD
What are screening components of a comprehensive DM evaluation?
Psychosocial: depression (PHQ2), anxiety, eating disorder (24hr food diary)
Cognitive impairment: dictates tx complexity
DSMES (self management education and support with DM educator/dietitian and group sessions. At least one 30-min visit covered by Medicare for new dx, if just started insulin, or major life change/event)
Hypoglycemia
Pregnancy planning
What are physical exam components for a DM evaluation?
What is acanthosis nigricans?
Velvety, hyperpigmented plaques on the skin often on neck or axillae
Most often associated with obesity and DM (associated with insulin resistance)
Benign and asymptomatic, but cosmetic concerns
Treatment of underlying cause (increased blood glucose) is preferred, but can be treated with topical steroids
What is lipohypetrophy?
Rubbery spots on the skin from prolonged injection in the same site
Must rotate sites to prevent the formation of fat deposits, which decreases insulin absorption at these sites
What are risk factors for developing foot ulcers?
Previous amputation Past foot ulcer history Peripheral neuropathy Foot deformity Peripheral vascular disease Visual impairment Diabetic nephropathy (esp pts on dialysis) Poor glycemic control Cigarette smoking
What labs should you order when evaluating a patient with suspected DM?
-HgbA1c if results not available within the past 3 months (repeat every 3-6 months)
Order the following if no results within past year:
-Fasting lipid profile
-LFTs
-Urinalysis: urine albumin excretion with spot urine albumin-to-creatinine ratio
-Serum Creat and calculated GFR
-TSH in DM1, dyslipidemia, or women >50
-B12 if on metformin (when indicated) (can cause deficiency because of decreased absorption)
-Serum potassium in pts on ACE, ARB, or diuretics
What is involved in the care coordination of DM? (Referrals, etc.)
What are the immunization recommendations for patients with DM?
How do you assess the effectiveness of management on glycemic control?
SMBG may help guide treatment decisions and/or self-management for pts using less frequent insulin injections
Patients need glucometer, strips, lancets, alcohol swabs and should monitor BG when concerning sx
When should patients on multiple-dose insulin (MDI) or insulin pump therapy be performing SMBG?
What is important about good glycemic control?
It delays the progression of morbidity and mortality:
Decreased rates of microvascular and neuropathic complications
Reduced risk of CVD
What are the ABCs of DM?
Target goals
A1C
BP
Cholesterol
What are the recommendations for monitoring A1C?
What are A1C goals in adults?
Non-pregnant adult: <7%
For selected pts (short duration of DM, type 2 treated w/ lifestyle or metformin only, long life expectancy, or no significant CV disease): <6.5%
Pts with history of sever hypoglycemia, limited life expectancy, advanced complications, extensive comorbidities, longstanding DM w/ difficulty achieving goal: <8%
What are the glycemic recommendations for nonpregnant adults with DM?
A1C: <7.0%
Preprandial: 80-130
Peak postprandial (2hrs post): <180