LP4: Diabetes Flashcards
Diabetes is diagnosed as an A1C of greater than or equal to _____%
6.5%
“normal” A1C is less than _____%
5.7%
“prediabetes” A1C is ______%
5.7%-6.4%
“diabetes” A1C is ______%
6.5% or higher
beta cells
*in the Islet of Langerhans, in the pancreas
*produce insulin
alpha cells
*in the Islets of Langerhans in the pancreas
*secrete glucagon in order to increase glucose levels in the blood stream
glucagon
*formed in the pancreas by the alpha cells
*promotes the breakdown of glycogen to glucose in the liver
*injected IM if no IV access, but can induce vomiting (so turn patient on their side)
glycogen
*stored in the liver & in muscles
*it’s the stored form of glucose
*converts to glucose in the LIVER, from free fatty acids and protein
insulin does what inside muscle, liver and fat cells?
*transports and metabolizes glucose for energy
*stimulates storage of glucose in the liver and muscle (as glycogen)
*signals the liver to stop the release of glucose
*enhances storage of dietary fat in adipose tissue
*accelerates transport of amino acids into cells
*inhibits the breakdown of stored glucose, protein, and fat
what’s gluconeogenesis?
The breakdown of noncarbohydrate substances, including amino acids, by the liver to form glucose after going 8-12 hours without food (as opposed to the liver producing glucose through the breakdown of glycogen)
what’s osmotic diuresis?
when excess glucose is excreted in the urine, it is accompanied by excessive loss of fluids and electrolytes
what are ketones?
*highly acidic substances that are formed by the conversion of free fatty acids to glucose, in the absence of insulin
rapid acting insulins
lispro
aspart
glulisine
onset, peak & duration of rapid acting insulin
Onset: ~15 minutes
Peak: ~1 hour
Duration: 3-5 hours
how to use rapid acting insulin?
used for rapid reduction of glucose level, to treat postprandial hyperglycemia, or to prevent nocturnal hypoglycemia