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Diabetes mellitus characterized by
sustained hyperglycemia
Type 1 diabetes was formerly called
insulin-dependent diabetes mellitus
or
Juvenile-onset diabetes
Type 2 diabetes was formally called
noninsulin-dependent diabetes mellitus
or
Adult-onset diabetes
Symptoms of Type 1 diabetes result from a complete absence of
insulin
Underlying cause of Type 1 diabetes is
autoimmune destruction of pancreatic beta cells
Type 2 diabetes results from a combo of
insulin resistance
impaired insulin secretion
unlike Type 1, Type 2 diabetes are capable of
insulin synthesis
Acute complications are seen more commonly in Type ____ diabetes
Type 1
Hyperglycemia results when insulin dosage is
insufficient
Hypoglycemia results when insulin dosage is
Excessive
Diabetic Ketoacidosis (DKA) develops when
hyperglycemia is allowed to persist
Macrovascular damage includes
increase risk of heart disease
hypertension
Stroke
Microvascular damage results in
Retinopathy (blindness)
renal failure
neuropathy
lower limb amputations
erectile dysfunction
gastroparesis
Microvascular damage are more occur in Type ___diabetes
Type 1
and are usually more severe
Gestational diabetes
as diabetes that appears during pregnancy and then subsides rapidly after delivery
blood glucose should be monitored and then controlled with diet and insulin
What are the 3 diagnosing diabetes tests
FPG (fasting plasma glucose)
OGTT (oral glucose tolerance test)
Casual plasma glucose test
Diabetes is diagnosed if
FPG is 126mg/dl or higher or
Casual blood glucose is 200mg/dl or higher and
Classic S/S
What are the Classic signs and Symptoms of Diabetes?
Polyuria
Polydipsia
Sudden weight loss (that cannot be attributed to other common causes)
Prediabetes
Impaired fasting plasma glucose between 100 and 125 mg/dL or
Impaired glucose tolerance (2 hr OGTT result of 140 to 199mg/dL)
Type 1 diabetes is treated with
insulin replacement
Type 2 diabetes is treated with
Oral hypoglycemics
Type 1 diabetes what is the dietary goal
Maintain wight--Not lose it
Glycolated hemoglobin (HbA1c) is measured to
Assess long-term glycemic control
HbA1c should be measured every
3-6 months to assess long-term glycemic control
The target value for HbA1c is
Target value 7% of total hemoglobin or lower
Insulin is synthesized in the _______ by ______cells within the _______
Pancreas
Beta cells
Islets of Langerhans
The principal stimulus for insulin release is
glucose in the bloodstream
Insulin is an ________hormone
anabolic
Insulin deficiency puts the body into a _______mode
Catabolic mode
resulting in glycogen converted to glucose
protiens degraded to amino acids
fats converted to glycerol and free fatty acids
Insulin deficiency promotes
HypERglycemia
by increasing glycogenosis and gluconeogenesis and
decresing glucose utilization
What insulins have a very rapid onset and short duration
Insulin lispro
Insulin aspart
Insulin glulisine
Lispro Insulin solution is a
(Humalog)
Rapid-acting analog or regular insulin
Lispro effects begin
15-30 minutes of Sub-Q injection
Lispro persist for
3-6 hrs
Insulin Aspart is a
(Novolog)
is an analog of human insulin with a rapid onset
Insulin Aspart onset is
10-20 minutes
Insulin Aspart duration is
Short 3-5 hours
Regular (native) Insulin when used sub Q has a moderately _____onset and _____duration
rapid onset
short duration
NPH and Detemir insulin have _____durations
Intermediate
Insulin Glargine has a ________duration
prolonged duration
Insulin Glargine has _______peak
no definite Peak
in either blood levels or hypoglycemic effects
All insulins can be administered
Sub Q
Regular insulin can be administered
IV and IM as well
NPH insulin looks
cloudy and should be gently agitated before being drawn into a syringe
When using short-acting insulin in combination with longer-acting insulin it is usually desirable to mix
the preparations in a single syringe, rather than inject them seperately
Slowest injection site is
thigh or buttocks
SMBG is a component of intensive insulin therapy and blood glucose should be measured
3-5 times a day
intensive insulin therapy carries a greater risk of
HypOglycemia
The most important and common adverse effect of insulin therapy is
HypOglycemia (below 50 mg/dL)
HypOglycemia occurs whenever insulin levels ______insulin needs
exceed
HypOglycemia symptoms include
tachycardia
palpitations
sweating
headache
confusion
drowsiness
fatigue
If hypoglycemia is severe
conculsions
coma
and death may follow
Insulin-induced HypOglycemia can be treated with
Fast-acting oral sugar (glucose tablets, Oj, sugar cubes)
IV glucose
parenteral glucagon
Oral sucrose (aka table sugar) acts slowly and will not work on pts taking
Acarbose
If insulin is given in excessive amounts what can occur
Hypokalemia
What are drugs that can lower blood glucose levels and can intensify HypOglycemia induced by insulin
Sulfonylureas
glinides
beta-adrenergic blocking agents
alcohol
Drugs that raise blood glucose
thiazide diuretics
glucocorticoids
sympathomimetics
These drugs can counteract desired effects of insulin
If insulin is combined with these drugs insulin may need to be increased
Beta blockers can delay awareness of
HypOglycemia
Oral hypoglycemic drugs
sulfonylureas
glinides
metformin
thiazolidinediones
alpha-glucosidase inhibitors
gliptins
ONLY for Type 2 diabetes
What oral hypoglycemic drugs actively drive blood down
sulfonylureas
glitazones
glinides
What oral hypoglycemic drugs DONT drive blood down
meformin (a biguanide)
alpha-glucosidase inhibitors
they simply modulate the rise in glucose that happens after a meal
Metformin (a biguanide) ______glucose production by the _____
decreased glucose
Liver
Metformin (a biguanide) _______glucose uptake by ____
Increases glucose
Muscles
in pts that need to loose weight is can help reduce appetite
What are the major adverse effects of metformin
GI distrubances
decreased appetite
nausea
diarrhea
Metformin does not cause
HypOglycemia
Sulfonylureas stimulate release of insulin from the ___
Pancreas
also increase cellular sensiticity to insulin
Major adverse affect of sulfonylureas is
HypOglycemia
may also increase risk of sudden cardiac death
repaglinide (Prandin) block ________channels on _______
ATP-sensitive potassium
beta cells
which facilitates calcium influx, which leads to increased insulin release
Rosiglitazone promotes
Water retention
causes heart failure
Rosiglitazone can cause
weight gain
edema
Rosiglitazone poses a risk for
HypOglycemia
Author
LaurenFleming
ID
95327
Card Set
diabetes more notes
Description
notes from outline
Updated
2011-07-26T23:24:36Z
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