Diabetes Flashcards
Diabetes is more common in which gender
equal in both males and females
type one diabetes is more common in what age
children and young adults
type 2 DM is more common in what age
older
Type 2 DM is more common in what races
African, Asian, Latino
Insulin is secreted from where
pancreatic beta cells
Insulin effects on glucose uptake into muscle
stimulates
insulin effects on gluocse uptake into adipose tissue
stimulates
insulin effects on lipolysis and FFA release from adipose tissue
decreases
Insulin effects on liver’s production of glucose
decrease
Glucagon is secreted from where
pancreatic alpha cells
glucagon’s effect on glucose levels
increases
glucagon’s effect on glycogenolysis
increases
glucagon’s effect on gluconeogenesis
promotes
glucagon purpose
maintain adequate fasting plasma glucose levels
amylin is secreted from where
co-secreted with insulin from beta cells
amylin purpose
decrease post meal increases in glucose
amylin effect on rate of gastric emptying
slows
amylin effect on satiety
increases
amylin effect on postmeal glucagon secretion
inhibits
GIP stands for
Gastric inhibiting polypeptide
GIP is secreted from
duodenum
GIP purpose
stimulate insulin secretion, expansion of beta cells
GIP effect on gastric emptying
minimal
GIP effect on satiety
- no effect
GIP effect on glucagon secretion
may stimulate
GIP secretion in daibetes
normal
GLP-1 stands for
glucagon like peptide 1
GLP1 is released from
jejunum and ileum
GLP1 does what
stimulates insulin secretion, expansion of beta cells
GLP1 effect on gastric emptying
slows
GLP1 effect on satiety
increases
GLP1 effect on glucagon secretion
suppress
GLP1 secretion in diabetes
less
Insulin resistance i Type 1 DM
absent; uncommon; may be present but does not contribute
Insulin resistance in Type 2 DM
present; common, major contributing factor to development
Insulin secretion in Type 1 DM
absent
Insulin secretion in Type 2 DM
impaired but some degree of insulin secretion still remains
Amylin secretion in Type 1 DM
absent
Amylin secretion in Type 2 DM
increased during early stages, low or absent in later stages
GLP-1 secretion in Type 1 DM
intact secretion, effect may or may not be diminished
GLP-1 secretion in Type 2 DM
Secretion intact, effects are diminished
Medications that cause increased blood glucose
thiazides
beta blockers
corticosteroids
niacin
gestational diabetes cause
defects in beta-cell secretion and increased insulin demand
Diabetes from pancreatic damage cause
beta cell damage - pancreatitis, ethanol abuse, cystic fibrosis
diabetes from cushing syndrome cause
over production of catecholamines, increased hepatic production of glucose and insulin resistance
What is prediabetes
elevated glucose levels but not diagnostic of DM
prediabetes fasting glucose
100-125
prediabetes 2 hour post oral glucose tolerance level
140-199
prediabetes A1C
5.7-6.4%
symptoms of diabetes
hungry (polyphasia)
urinate a lot (polyuria)
polydypsia (increased thirst)
Weight loss
Fasting glucose levels for DM
126+
2 hour post oral glucose tolerance level in DM
200+
a1c in DM
6.5+
random glucose with symptoms in DM
200+
Screening for type 1 DM
not routine, autoimmune antibodies in high risk (transient hyperglycemia or family history of type 1)
Screening for Type 2 DM
44+ years old previous pre-diabetes 250 3. PCOS 4. prediabetes 5. CVD 6. baby 9+ lbs or gestational DM
How often to screen asymptomatic adults for Type 2 DM
every 3 years
how often to screen individuals at risk of type 2 DM (prediabetes)
yearly
Average age at diagnosis of type 1 DM
young
Average age at diagnosis of type 2 DM
older
Speed of onset of symptoms in type 1 DM
rapid
Speed of onset of symptoms in type 2 DM
slow
Presenting symptoms of Type 1 DM
DKA
Presenting symptoms of Type 2 DM
polydypsia
polyphagia
polyuria
Body habitus of type 1 DM
normal/underweight
Body habitus of type 2 DM
obese
complications of DM
- Nephropathy
- peripheral neuropathy
- poor wound healing and ulcers
- retinopathy
- atheroscleotic vascular disease
- risk of infection
- erectile dysfunction
- autonomic dysfunction
- acute complications (DKA, HHNS)
Consequences of nephropathy
end stage renal disease, dialysis, renal transplant
Consequences of peripheral neuropathy
loss of sensation numbness neuropathic pain lower extremity deformities amputation
consequences of poor wound healing and ulcers
lower extremity amputations
loss of limb function
consequences of retinopathy
blindness
retinal hemorrhages
consequences of atherosclerotic vascular disease
ACS, MI
TIA, CVAs,
PAD
screening for nephropathy
spot urinary albumin excretion
screening for peripheral neuropathy
monofilament testing, pinprick sensation and vibration perception
screening for poor wound healing and ulcers
Comprehensive foot exam yearly
Screening for retinopathy
Dilated pupil exam at least annually
Screening for atherosclerotic vascular disease
no single screening, monitor s/s and risk
Intervention to reduce risk of nephropathy
glycemic control
HTN management
Intervention to reduce risk of peripheral neuropathy
glycemic control
Intervention to reduce risk of poor wound healing and ulcer
glycemic control, control of PAD risk factors (HTN, lipids, smoking, physical activity) podiatrist for foot care
Intervention to reduce risk of retinopathy
glycemic control
HTN
lipid control
Intervention to reduce risk of atherosclerotic vascular disease
glycemic control HTN management Lipid smoking antiplatelet therapy
Goals of therapy for DM
reduce morbidity and mortality
- reduce risk for complications
- alleviate symptoms of complications
- achieving of glucose goals
goals of therapy for prediabetes
goal is to delay, slow progression of development of Type 2 DM
recommendations for prediabtes
weight loss (7+%) Physical activity (150 minutes/week)
What study showed greater benefits in lifestyle modification than drug therapy to prevent diabetes
DPP diabetes prevention program
Which study showed benefit to early aggressive attempts to control glucose to reduce risk of developing DM and that maintainance of weight is important for prolonged risk reduction
DPPOS diabetes prevention program outcomes study
What measures of glucose are used
plasma/blood glucose
A1C
fructosamine