Shared Flashcard Set

Details

Pharmacolgy-glucose regulation
Exam 2
19
Nursing
Undergraduate 3
03/21/2011

Additional Nursing Flashcards

 


 

Cards

Term

 

Drugs for glucose regulation

Definition
insulin preparations:
-analog: prototype- insulin aspart (NovoLog)
-short-Acting: P-Regular
-intermediate: P-NPH
-Long acting: P-extended insulin, zinc (Ultralente)
-Combination: P-humalin 50/50

oral hypoglycemia agents
-sulfonylurea: prototype-first generation: chlorpropamide (Diabinese) second generation: glipizide (Glucotrol)
-Beguinides: P-metfomin (Glucophage)
-Thiazolidinediones: P-proglitazone (Actos)
-alph-glucosidase inhibitors: P-acarbose (Precose)
-meglitinides: P-repaglinide (Prandin)
-combination: P-glyburide/metformin (Glucovance)

hyperglycemic agents: P- glucagon
Term

 

Pancreas

Definition
Islets of Langerhans: 3 types of secretory cells

alpha (A)-glucagon
beta (B)-insulin
delta (D)-somatastatin-CHO, fat and protein metabolism
Term

 

Diabetes Type I

 

Definition
usually occurs before age 30
-little of no endogenous insulin
-islet beta cells decreased or absent-insulin absent or decrease and beta cell fail to respond to stimuli
-ketosis prone-insulin therapy required
Term

 

diabetes mellitus type II

Definition
maturity onset usually after 40
-some insulin function, but response decrease
-gradual progression from normal to impaired glucose tolerance
-obese, genetic
-management: dietary, exercise, oral hypoglycemic (perhaps insulin)
-goal: FBS<126 mg/dl, HbA1c>7%
Term

 

clinical manisfestation: decreased insulin resistance-hyperglycemia

Definition
CHO: glucose
-urination (glucouria)
-thirst (polydipsia)
-hunger (polyphagia)

Fat: fatty acid breakdown
-ketones (acidosis-coma)

Protein: catabolism
-weight loss, fatigue, polyphagia
Term

 

insulin action

Definition
transport of glucose across cell membrane
conversion of glycogen to glucose
amino acid utilization-enhances synthesis of protein and inhibits protein breakdown
utilize fatty acid by cell and inhibits lipolysis
Term

 

Rapid-acting Insulin

Definition
lispro (Humalog)
aspart (NovoLog)
glulisine (Apidra)

onset: 15 min
peak: 30-1hr 15 min
effective duration: 3-4 hours

SQ, IV
Term

 

Short-acting insulin

(regular)

Definition
regular: Humalin R, Novolin R
Actrapid

onset: 30-60 min
peak: 2-3 hours (snack)
duration: 5-7 hours
clear: IV, SQ
Term

 

 

Intermediate insulin

Definition
Humalin N, Novolin N (NPH)
Humalin L, Novolin L (zinc)

onset: 2-4 hours
peak: 8-12 hours
hypoglycemia-midafternoon
effective duration: 18-24 hours
cloudy-sq only
Term

 

 

Long-acting insulin

Definition
Ultralente, Humulin U, glargine (Lantus)

onset:3-4 hours
peak: 8-16 hours
effective duration: 18-20 hours
SQ
Term

insulin: kinetics
Definition
subq: fast to slow: abdomen, arm, thigh

physical activity will accelerate absorption

rapid or short-acting IV, or sq, or insulin pumps

SE: hypoglycemia

local allergic:itching, redness, swelling, lipodystrophies
Term

 

Hypoglycemia

 

drug therapy

Definition
glucagon
-hyperglycemia agent-emergency for acute hypoglycemia
-subq, IM, IV

must administer food
IV glucose to prevent recurrence of hypoglycemia
monitor glucose level

monitor blood glucose prior to administration
-may be on sliding scale baseline

signs of hypoglycemia-insulin, decreased food intake, emotional upset
15 g of CHO
Term

 

oral hypoglycemic agents

Definition
used for type II diabetes
need some endogenous insulin
part of management plan
Term

 

sulfonylureas

 

Definition
first generation: diabinese, orinase
second generation: glyburide (Micronase), glipizide (Glucotrol)
-low cost, fast reduction in fasting glucose
-weight gain, strong risk of hypoglycemia
-take with breakfast
Term

 

 

meglitinides (glinides)

Definition
-act similar to sulfonylureas
-very short acting-acts directly on beta cell

repaglinide (Prandin), nateglinide (Starlix)
-lower risk for hypoglycemia, short acting, meal adjust dosing
-expensive
-take 15-30 minutes before each meal
Term

 

Biguanides

Definition
stop liver from making extra sugar when its not needed

metformin (Glucophage) with meals
Glucophage XR-one daily with evening meals

-weight loss, insulin sensitization, positive lipid effect, mild hypotensive, effect and low risk of hypoglycemia

-GI side effect, expensive, rare lactic acid (liver disease)

stop 2 days before procedures that may decrease renal profusion: IV contrast, surgery
Term

 

Glitazones

Definition
thiazolidinediones help body cells use insulin better

rosiglitazone (Avandia), pioglitazone (Actos)
-take without regard to meals
-decrease amount of insulin, decrease risk of hypoglycemia, decrease in triglyceride level, used safely with renal disease
-expensive, weight gain, slow onset (12 weeks), possible liver toxicity
Term

 

alpha-glucosidase inhibitors

Definition
slow the digestion of starches

acarbose (Precose), miglitol (Glysert)

-decrease risk of hypoglycemia
-expensive, GI side effect, must be taken with the first bite of each meal

-contraindicated-inflammatory bowel

treat hypoglycemia with oral glucose not sucrose
Term

 

Dipeptidyl Peptidase-4 (DPP-4)

inhibitors

Definition
vildagliptin (Galvus), sitagliptin (Januvia)
-once a day

-lowered A1c, works well in elderly, fewer side effects, take with other oral hypoglycemic agents

-upper respiratory infection, sore throat, diarrhea
Supporting users have an ad free experience!