chapter 15 Flashcards
what is diabetes melitus
group of serious and chronic disorders affecting metabolism of carb
absence or misuse of insulin = hyperglycemia
precursor is prediabetes (impaired glucose tolerance) - blood glucose levels higher than normal but not high enough to diagnose diabetes + growing insulin resistance
metabolic syndrome (dysmetabolic syndrome)
- constellation of conditions that pose signficiant risk of developing heart disease, stroke, and diabetes
- abn cholesterol
- excess body fat around waist
- increased bp and blood sugar
diabetes insipidus
large amt of urine but not sweet (insipid)
caused by damaged pituitary land
___ millino have diabetes in US (___% percent of US pop) with ____ diagnosed and ___ undignosed
29.1 millin
9.3%
diagnosed: 18.8 mil
diagnomsed: 8.1 mil
what is t2d major cause for
blindness
heart and kidney disease
amputation of toes, feet, and legs
infection
ieath
meaning behind t2d naeme
dibates - flow through (large amt of urine)
mellitus - honey (glucose in urine)
what secretes insulin
beta cells of sislets of Langerhans in pancreas
inadequate production of insulin or body is unable to use insulin it produces
glocuse cant enter cells and accumulate in blood, = hyperglycemia
glucagon role
secreted by alpha cells of islets of langerhans
helps release energy when needed to convert glycogen to glocuse
somatostatin
hormone produced by delta cells of islets of langerhans and hypothalamus
inhibits release of insulin and glocagons
glycosuria
glocuse excreted in urine when hyperglcemia exceeds renal threshold
what causes polyphagia in diabetes
inability to metabolize glucose causes body to break down its own tissue for protein and fat
causes polyphagia and loss of weight, weakness, and fatigue
use of protein from its own tissue causes body to excrete nitrogen
ketones in diabetes
excess fat is broken down, thus liver produces ketones from fatty acids
causes ketonemia and ketonuria
ketoacidos : lead to loss of consciousness and possibly death if not treated w fluids and insulin
neuropathy occurs in ____ of clients w diabetes
60-70%
what is number one cause of need for kidney dialysis
nephropathy
symptoms of diabetes
urinating often
feelign v thirsty
feelnig v hungry even though you have been eating
extreme fatigue
blurry vision
cuts or bruises that are slow to heal
weight loss (even though eating more - T1D)
tingling pain or numbness in hands or feet (T2D)
classification of diabetes (types)
prediabetes
Type 1 diabetes
type 2 diabetes
gestational diabetes
type of diabetes due to toerh causes like drug or chemical induced diabetes
1 in ___ adults ahve prediabetes
3
results indiciate pre-diabetes
fasting glucose of 100 and 125 mg/dL
A1C of 5.7-6.4
OGTT 2hr blood glucose of 140-199 mg/dL
start testing at 45 yo w 3 y intervals
risk facotrs for prediabetes
physical inactivity
first-degree relative w diabetes
members of high risk race or ethnicity (AA, Latino, native or Asian AMerican, Pacific Islanter)
women who delivered babies ? 9lb or had gestatoin diabetes
hypertension
dyslipidemia
PCOS
elevated labs
clinical conditions associated w insulin resistance (severe obesity, acanthosis, nigricans)
history of CVD
type 1 diabetes
juvenile diabetes
body immune system destroys pancraitc beta cells
5% of all diabetes cases
diagnose using blood glucose (over 126 mg/dL)
risk factors include genetics, autoimmune status, environmental factor
treat w exogenous insulin
type 2 diabetes
usually occur after 40 yo
diagnose w fasting glucose of 126 mg/dL, 2 our glcusoe of 200 mg/dL during OGTT, A1C of > 6.5
control w diet and exercise and oral diabetes medication
metformin is original medication
goal of nutrition therapy is maintain healthy glucose, blood pressure, and lipid levels
rapid acting insulin
Lispro (Humalog)
Aspart (Novolog)
Glulisine (Apidra)
short acting insulin
Regular (Humulin R, Novolin R)
intermediate acting insulin
NPH (Humulin N, Novolin N)
long actign insulin
detemir (Levemir)
Glargine (lantus, Basaglar, Toujeo)