Type 1
What is type 1 diabetes mellitus?
no insulin production
caused by an autoimmune response that attacks beta cells
What are the risk factors of T1DM?
Genetics
Family History
What are the characteristics of T1DM?
early onset
weight loss
thin at diagnosis
glycosuria
What are the treatments for T1DM?
insulin
What are the symptoms of T1DM?
sudden onset
3 P's
polyuria
polydipsia
polyphagia
Sudden weight loss
Ketoacidosis
Glycosuria
Fatigue
Weakness
Vision changes
DKA
Type 2
What is T2DM?
the body does not produce enough insulin
the insulin that is produced is not effective
What are the risk factors of T2DM?
Family hx
Obesity
Inactivity
Age
HTN
High HDL and cholesterol
What are the characteristics of T2DM?
gradual onset
diagnosed in adulthood usually
What are the treatments for T2DM?
exercise
diet
oral antidiabetics (metformin)
maybe insulin
What are the symptoms of T2DM?
slow onset
may have the 3 P's
fatigue
weakness
vision changes
numb hands or feet
dry skin
frequent infections
vaginal yeast infections
What are the diagnosis criteria for diabetes?
3 P's
Unexplained weight loss (type 1)
fasting BG 126+ mg/dL
no caloric intake for 8 hours
random BG of 200+
hgbA1C 6.5% +
blood sugar over the past 3 months
Medical Management
How does nutrition therapy affect DM?
Weight loss
Reduces calories
Reduces BP
Reduces lipids
How does exercise affect DM?
↓BG
↓ cardio risk factors
make sure they have a snack and BG monitor → hypoglycemia
Monitor
frequent monitoring of BG
When should they check their BG?
before meals
before snacks
before bedtime
Frequent monitoring of ketones
Pharmacological
What kind of drugs are used for T2DM?
Oral antidiabetics (metformin)
What kind of drugs are used for T1DM?
Insulin
Hypoglycemia
What are the lab values for hypoglycemia?
BG less than 70 mg/dL
Severe: less than 40 mg/dL
What are the sx of mild hypoglycemia?
diaphoresis
tremor
tachy
palpitations
nervousness
hunger
What are the sx of moderate hypoglycemia?
poor concentration
headache
lightheaded
confusion
slurred speech
double vision
drowsy
What are the sx of severe hypoglycemia?
seizure
LOC
coma
death
What is the treatment for hypoglycemia in an alert pt?
15-20 G of a fast acting carb
wait 15 minutes
15 g of carb + protein
What is the treatment for hypoglycemia in an unconscious patient? (home setting)
1 mg of glucagon IM
regains consciousness in about 20 minutes
What is the treatment for hypoglycemia in an unconscious patients? (hospital setting)
20-50cc of D50 IV push
regains consciousness in about 5 minutes
Insulin Therapy
Long Term Complications
What organs are affected by DM?
cardiovascular
How is the CV system affected by DM?
↑MI
↑CAD
↑TIA
↑strokes
↑PAD
renal
How is the renal system affected by DM?
excessive BG can damage the tiny blood vessels in the glomeruli
this can leak to ESKD
neuro
How is the nervous system affected by DM?
excessive BG damages the blood vessels and makes then stiff, which can lead to a stroke
Peripheral Neuropathy
tingling, numbness, and loss of sensation in the feet especially
!FOOT CARE!
eyes
How does are the eyes affected by DM?
Diabetic Retinopathy
excessive BG damages blood vessels of the retina
blindness, cataracts, glaucoma
What are some considerations for a diabetic patient undergoing surgery?
periods of stress = higher BG
Pre-op
frequent BG monitoring
insulin held for BG less than 200
NPO
dextrose to prevent hypoglycemia
try to get then off NPO as soon as possible
increased risk of infection and slow wound healing
What are some considerations for a diabetic patient who is hospitalized?
hyperglycemia due to stress
prolonged stay
increased infection risk
increased mortality
Insulin Therapy
How does insulin affect the body?
promotes glucose uptake by cells
provides glucose storage as glycogen
prevents fat + glycogen breakdown
increases protein synthesis
What are the types of Insulin?
Rapid Acting
What is an example of rapid acting insulin?
Lispro
Onset within 15-30 minutes
Peak is around 30 min-2.5 hrs
Duration is 3-6 hrs
Short Acting
What is an example of short acting Insulin?
Regular
can be given IV!
given 15 min before a meal
Intermediate Acting
What is an example of intermediate acting insulin?
NPH
onset 1-2 hrs
peak 6-14 hrs
duration is 16-24 hrs
Very long Acting
What is an example of very long acting insulin?
Glargine and Detemir
"peakless"
absorbed over 18-24 hrs
CANNOT BE MIXED!
What is the insulin sliding scale?
BG-100/given #