Diabetes Flashcards
What is diabetes
the relative or absolute deficiency of insulin, causing glucose intolerance.
fasting sugar > 126 mg/dL
what are the fasting levels of glucose for prediabetics
100-125mg/ gl
what are the sx of diabetes
polydipsia and polyphagia
plyuria
Unexplained weight loss
what does insulin do
Anabolic hormone. promotes glucose and aa thought membranes of: skeletal smooth cardia muscle cells fibroblasts FAT CELLS
What cells are not affected by insulin
neurons
Kidney
RBCs
What are the features of type I diabetes
Insulin requiring; no natural insulin
Young and thin
Loss of islet beta cells due to auto immune process most likely viral infection.
Ketoacidosis-dehydration. deep labored breathing due to acidosis
nausea
coma
What is the term for increase urination
Polyuria
What is the term for increased thirst
Polydipsia
What is the term for increased hunger
Polyphagia
What are the actions of Insulin:
Glycogenolysis Lypolysis Increased conversion of aa to glucose Increased protein synthesis Increased glucose transport.
Insulin synthesis
proinsulin (small peptide) converted to insulin and protein C
Half life is 3-5 min.
where age Glut-2 receptors found
ß cells
Where are Glut-4 receptors found
Muscle and fat cells
name of rapid acting Insulin
Lispro
Aspar
Glulicine
4 hr duration
name of short acting insulin that lengthens duration
Novolin, often combined with NPH
Peak 2-3 hrs