Diabetes Flashcards
What types of tissue are contained in the pancreas? (2)
- Exocrine
- Endocrine
What is the function of exocrine tissue?
Production of pancreatic juices
What is the function of endocrine tissue?
Production of glucagon / insulin
______ is the primary source of energy for cells
Glucose
What does complete lack of insulin lead to? (3)
- Polyuria
- Polydipsia
- Polyphagia
What is the route of insulin?
SQ
ONLY ______ insulin can be given IV
Regular
It is important to rotate insulin sites to avoid risk of ______
Lipodystrophy (degeneration of adipose tissue)
What is the primary side effect of insulin?
Hypoglycemia
What factors of insulin are important to know? (3)
- Onset
- Peak
- Duration
Risk of hypoglycemia is highest during the ______ of insulin action
Peak
Which type of insulin has the following?
Onset: 15 - 30 minutes
Peak: 1 - 2 hours
Duration: 3 - 5 hours
Rapid
Which type of insulin has the following?
Onset: 30 - 60 minutes
Peak: 1 - 5 hours
Duration: 6 - 10 hours
Short (regular)
Which type of insulin has the following?
Onset: 1 - 2 hours
Peak: 6 - 14 hours
Duration: 10 - 18 hours
Intermediate
Which type of insulin has the following?
Onset: 1 - 2 hours
Peak: none
Duration: 24 hours
Long
Meal time insulin is also known as ______ insulin
Bolus
Administer rapid insulin within ______ minutes prior to meal
15
Administer rapid insulin within ______ minutes after start of meal
20
What are some examples of rapid insulin? (3)
- Aspart
- Lispro
- Glulisine
What are the agents of short-acting insulin (regular)?
- Humulin R
- Novolin R
Administer rapid insulin within ______ minutes prior to meal
30
Humulin R is available in ______ (concentrated insulin)
U-500 (500 units / mL)
What are the agents of intermediate (NPH) insulin?
- Humulin N
- Novolin N
Intermediate (NPH) is ______ insulin
Basal
When is intermediate (NPH) insulin administered?
Morning and evening
Describe the appearance of intermediate (NPH) insulin
Cloudy appearance - roll before administration
Administer mixed insulin within ______ minutes prior to meal
30
What are the agents of mixed insulin? (3)
- Humulin
- Novolin
- Novolog
Which type of insulin is 70% intermediate, 30% short?
Humulin
Which type of insulin in 70% long, 30% short?
Novolin
Which type of insulin is 70% long, 30% rapid?
Novolog
Never mix ______ insulins
Basal
Describe the steps of mixing insulin
** Draw up the clear (fast-acting) before the cloudy (long-acting)
- Inject air into cloudy
- Inject air into clear
- Withdraw clear
- Withdraw cloudy
Lantus insulin is ______
Long-acting
Lantus insulin requires ______ daily dosing
Once
Levemir insulin is ______
Long-acting
Levemir insulin requires ______ daily dosing
Twice
Levemir is ______
Weight-based
Levemir is a ______ insulin
Basal
Subcutaneous short-acting or regular insulin doses are adjusted according to ______
Blood glucose test results
When is the sliding-scale (correction factor) used in insulin dosing?
TPN / enteral tube feedings
Subcutaneous insulin is ordered in an amount that increases as ______ increases
Blood glucose
Describe the disadvantages of sliding-scale (correction factor) insulin dosing (2)
- Delays insulin until onset of hyperglycemia
- Swings in glucose control
Describe the 2 coverages of insulin
- Basal coverage - 24 hour need
- Food coverage - 2 hour need / meal
______ medications are most frequently used for recently diagnosed type II diabetics
Oral
Name an example of a biguanide (glucophage)
Metformin
Describe the mechanism of action of biguanides (glucophages) (2)
- Decrease glucose release
- Increase insulin sensitivity
Glucophage does not cause ______
Hypoglycemia
Describe the nursing considerations of biguanides (glucophages) (2)
- Hold 48 hours before / after IV contrast
- Monitor renal function
What are the indications of biguanides (glucophages)? (2)
- Pre-diabetes
- Polycystic ovarian disease
Biguanides (glucophages) are used for those with BMI of ______
> 25% (weight loss effect)
What is the primary side effect of biguanides (glucophages)?
Lactic acidosis
Name an example of a sulfonylurea
Glucotrol
Describe the mechanism of action of sulfonylureas (2)
- Decrease insulin resistance
- Increase insulin secretion
What is the primary indication of glucotrol?
Poor renal function
What are the side effects of sulfonylureas? (2)
- Hypoglycemia
- Weight gain
Describe the mechanism of action of alpha-glucoside inhibitors
Delay absorption of glucose
Why must alpha-glucoside inhibitors be taken with meals?
Prevention of postprandial blood glucose elevations
Name an example of an alpha-glucoside inhibitor
Precose
What are the side effects of alpha-glucoside inhibitors? (3)
- Flatulence
- Diarrhea
- Abdominal pain
Describe the mechanism of action of dipeptidyl peptidase IV (DPP-IV) inhibitors
Delay breakdown of incretin
What are the functions of incretin? (2)
- Increases insulin synthesis
- Decreases glucagon breakdown
Dipeptidyl peptidase IV (DPP-IV) inhibitors should NOT be used with ______
Insulin
Describe the mechanism of action of SGLT-2 inhibitors
Inhibits reabsorption of filtered glucose –> promotes excretion of glucose into urine
Name an example of a SGLT-2 inhibitor
Invokana
Describe the dosing of SGLT-2 inhibitors
Once a day in the morning
What are the side effects of SGLT-2 inhibitors? (2)
- UTIs
- Vaginal infections
What is the primary adverse side effect of thiazolidinediones (TZDs)?
Congestive heart failure due to fluid retention
DO NOT use ______ with heart failure patients
Thiazolidinediones (TZDs)
Administer meglitinides within ______ minutes prior to meal
15 - 30
Describe the mechanism of action of GLP-1 agonists (3)
- Suppress elevated glucagon
- Slow gastric emptying
- Decrease appetite
Name some examples of GLP-1 agonists (3)
- Byetta
- Ozempic
- Victoza
Byetta and victoza should be administered ______ hours apart from oral meds
1 - 2
______ is a natural hormone released by the beta cells in response to food and reduces postprandial blood glucose
Amylin
Describe the mechanism of action of amylin agonists (2)
- Slows gastric emptying
- Suppresses glucagon
______ in patients with diabetes is 8 times higher than in general population
MI
Name 2 examples of medications used to reduce cardiovascular death in diabetics
- Jardiance
- Liraglutide
Check ______ before giving insulin
Blood glucose level
Describe the storage of insulin pens / vials (2)
- Unopened insulin pens or vials should be kept in the refrigerator
- Open vials or pens may be kept at room temperature for 28 days
What is the first rule of treating diabetes?
Minimize hypoglycemic events
Describe the rule of 15s
- Give patient 15 grams of quick-acting carbohydrates
- Wait 15 minutes and test blood glucose
- If unable to test, treat every 15 min until symptoms resolve