Endocrine Flashcards
In what endocrine disorder are 1/3 of its cases undiagnosed?
DM
DM is characterized by _____ due to defects in _____ and _____.
Hyperglycemia. Insulin production. Insulin action.
What are the functions of insulin?
Transports and metabolizes glucose, signals the liver to stop releasing glucose, and the liver and muscles to store glycogen, fat to adipose tissue, amino acids to cells, and inhibits the breakdown of glucose, proteins, and fats.
What drug class causes type 1, 2, and gestational Diabetes?
Corticosteroids
What kind of disease is Type 1 DM? What happens? What % of all DM are type 1?
Autoimmune. Beta cells destroyed. 5-10%
In what endocrine disorder are 1/3 of its cases undiagnosed?
DM
In what demographic is type 2 more prevalent?
Over age 30 and obese
Type 2 is slow and progressive, to initially, what is the best way to treat it?
Diet and exercise
What are the risk factors for type 1 DM?
Not inherited, but genetic predisposition, combined with immunologic and possibly viral
What are some type 2 DM risk factors?
Family hx, obesity, ethnicity, HTN above 140/90, hx of gestational DM, HDL 250, baby over 9lb
What races are more apt to get Type 2 DM?
Native Americans, African Americans, Asian Americans, Pacific Islanders
What are the s/s of hyperglycemia?
3 P’s, fatigue, weakness, vision changes, numbness in extremities, wounds won’t heal, recurrent infections
Type 1 DM?
Weight loss, N/V, abd pain if DKA has developed
What diagnostic defines DM?
Fasting blood glucose of 126 or higher, random of 200 or higher
What does intensive control reduce?
Vascular and neuropathic complications
What % of the diabetics diet should be carbs? Fats? Cholesterol?
50-60% carbs. 20-30% fat with <300 mg cholesterol
What is the glycemic index?
It describes how much a food raised blood glucose
What do you combine starchy foods with to slow glycemic response?
Protein and fat containing foods
What is the difference between nutritive and non-nutritive sweetener?
Nutritive contain calories. Fructose, sorbitol, xylitol
How does exercise affect the diabetic?
It lowers blood sugar, aids in weight loss, and lowers CV risk
When should a diabetic avoid exercise?
BS above 250 or ketones in blood
If you are taking exogenous insulin, what should you do before exercise? After?
Eat a 15 g carbohydrate snack. Check BS
Explain and give tx for insulin waning, dawn phenomenon, and Somogyi effect
Waning = slow rise in BS from bedtime to am (Increase evening dose of intermediate/long acting insulin), Dawn = 3am rise in BS (Change time of intermediate insulin from dinner to bedtime), Somogyi = normal or elevated BS drops at 2-3am (Decrease evening intermediate, or give bedtime snack)
Which insulins are rapid acting, short acting, intermediate, long? Name trade and generic if you can.
Rapid = Lispro (Humalog), Aspart (Novalog), Glulisine (Apidra). Short = Regular insulin (Humalin R, Novolin R, Ilentin), Intermediate = NPH (Humulin N, Novolin N, Ilente II). Long = Glarhine (Lantus) and Detemir (Levimir)
When should diabetics get a stress test?
30 and over with 2 or more risk factors
What BS level is considered hypoglycemia?
Below 50-60
What are its adrenergic symptoms?
Sweating, tremors, tachycardia, palpitations, nervousness, hunger
CNS symptoms?
HA, confusion, memory lapses, slurred speech, numbness of lips and tongue, irrational, combative, double vision, drowsiness
What can sever hypoglycemia cause?
Disorientation, seizure, LOC
What is the tx for hypoglycemia?
15 g of carbs, 3-4 glucose tablets, 4-6 oz juice, 6-10 hard candies, 2-3 tsp honey
When do you retest and what do you do next?
Retest after 15 minutes. If <70 retreat. Give snack with protein/carbs, unless pt will eat a meal in 30-60 minutes
What BS levels cause DKA, high or low?
High
What cells does the endocrine affect, and what systems does it work closely with?
Almost every cell in the body. Nervous and immune
Where do steroids and peptides (proteins) work?
Steroids - in the cell. Peptides - on cell surface
Name all of the glands in the endocrine system.
Hypothalamus, pineal, pituitary, thyroid, parathyroid, thymus, adrenals, islets of Langerhans, ovaries, and testes
Is SIADH too much or too little of _____?
Too much ADH (Vasopressin)