blood glucose levels 49 Flashcards
what percentage of the population has DM?
7%
which is more common, DM 1 or DM2?
DM2 (90-95%)
metabolic changes when insufficient insulin is released
hyperglycemia glycosuria polydipsia lipolysis ketosis acidosis
hyperglycemia results from what 3 main abnormalities?
- excessive glucose production in liver
- absent or impaired glucose production and secretion by the pancreas
- peripheral insulin resistance
type 1 diabetes
autoimmune disorder characterized by the destruction of insulin-secreting beta cells in the pancreas, leading to absolute insulin deficiency
type 2 diabetes
result of insulin resistance by the tissues and usually a decrease in insulin production
gestational diabetes (GDM)
occurs when a woman’s pancreatic function is not sufficient to overcome the insulin resistance created by the anti-insulin hormones secreted by the placenta
insulin functions
- facilitates passage of glucose into cells for energy
- suppresses excess production of sugar in the liver and muscles
- inhibits breakdown of fat for energy
exogenous insulin
synthetic insulin
aspart, lispro, glulisine
insulin interactions
alcohol beta blockers dobutamine niacin MAOIs thiazide diuretics tetracycline
insulin contraindications
hypoglycemia
insulin adverse effects
hypoglycemia
lipoatrophy
insulin nursing diagnoses
- deficient knowledge r/t insulin pharmacotherapeutics
- risk for non-adherence to self care r/t complexity and chronic nature of insulin regimen
- risk for hypoglycemia r/t incorrect insulin administration
insulin planning/interventions
max therapeutic effect: store opened vials at room temperature; administer with an insulin syringe into appropriate subq site
min adverse effects: rotate injection site to prevent lipodystrophy; assess blood glucose prior to administration
which subq site provides the most rapid absorption of insulin therapy?
abdomen; up to 50% faster
rapid acting insulins
- aspart (NovoLog)
- lispro (Humalog)
- glulisine (Apidra)
rapid acting insulin administration
administer within 15 min of the start of the meal begins working in 10-20 min peak 30 min-3 hrs duration 3-5 hrs can be used in insulin pumps
short-acting insulin
regular (R) or novolin: acts in 30-60 min, lasts 5-8 hrs
velosulin (used in insulin pump): acts in 30-60 min, lasts 2-3 hrs
intermediate insulin
NPH (N): acts in 1-2 hrs, lasts 18-24 hrs
long-acting insulin
insulin glargine (Basaglar, Lantus, Toujeo) - 20-24 hrs insulin detemir (Levemir) - up to 24 hrs insulin degludec (Tresiba) - lasts up to 42 hrs
pre-mixed insulin
humulin [70/30, 50/50]
humolog mix [75/25]
novolin [70/30]
novolog [70/30]
insulin pt education
self glucose testing carry emergency carbs never inject cold insulin do not massage injection site draw up regular (R) first