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Pharm 2
Quiz 2 - Test 2
108
Medical
Graduate
05/13/2012

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Term
Preclinical Beta cell autoimmunity precedes the diagnosis of Type 1 by ____ years
Definition
9 to 13 years
Term
is there any screening available for T1DM?
Definition
No
Term
who needs insulin? (4)
Definition
T1DM
T2DM if failed other therapy
women w/gestational diabetes
diabetic ketoacidosis and hyperosmolar hyperglycemic state
Term
insulin is classified according to what 3 things
Definition
strength
onset
duration of action
Term
all insulin in the US is producing using what?
- Eli Lilly and Sanofi Aventus use what?
- Novo Nordisk uses what?
Definition
- recombinant DNA technology
- non ds producing strain of E coli
- bakers yeast
Term
what are the 2 insulin strengths?
Definition
u 100
u 500
Term
which insulin controls post prandial glucose? fasting plasma glucose?
Definition
bolus
basal insulin
Term
Insulin requirements for individuals with type 1 diabetes and who are within 20% of ideal body weight are usually what?
Definition
.6 units/kg per day
Term
Insulin requirements will be ______ in the presence of illness or other metabolic instability.
Definition
higher (even double)
Term
Insulin requirements will be _______during the honeymoon phase
Definition
less (0.1 to 0.4 unit/kg body wt/day)
Term
___ of the daily insulin dose should be delivered as basal insulin and ____ for prandial
Definition
50%, 50%
Term
how should the prandial insulin be divided for meals?
Definition
20% Breakfast
15% Lunch
15% Supper
Term
major complication of insulin? 3 main complications of it?
Definition
hypoglycemia
- Too much insulin or medication
Missed meals
Increased physical activity
Term
3 rapid acting insulin examples
Definition
Humlog
Novolog
Apidra
Term
2 short acting insulin examples
Definition
Humulin R
Novolin R
Term
2 intermediate acting insulin examples
Definition
Humulin NPH
Novolin NPH
Term
2 long acting insulin examples
Definition
Lantus
Levemir
Term
where should you never inject long acting insulin?
Definition
muscle of thigh
Term
needles <___mm will not work in obese pts
Definition
8
Term
what are the best sites for insulin injection?
Definition
abdomen, then fat in back of arm
Term
what range is impaired glucose tolerance? what does it have a two fold increase in risk for? 10% of patients will develop ______ complications before meeting diagnostic criteria for diabetes
Definition
100-125 mg/dL
CVD
Term
10% of patients will develop ______ complications before meeting diagnostic criteria for diabetes
Definition
microvascular
Term
describe the diabetes progress (T2)
Definition
insulin resistance increases and blood glucose starts to rise. it reaches its breaking point and insulin production decreases while glucose continues to rise.
Term
fasting plasma glucose levels
normal:
impaired:
DM:
Definition
<100
100-125
>/=126
Term
A1C levels:
normal
increased risk of DM
DM
Definition
<5.7
5.7-6.4
>/=6.5
Term
how do sulfonylureas work? care must be taken to prevent what?
Definition
help pancreas release more insulin, which lowers blood glucose
hypoglycemia
Term
what sulfonylurea should you make sure you get patients off of?
Definition
Diabinese
Term
people who are allergic to what need to avoid sulfonylureas?
Definition
sulfa
Term
sulfonylureas stimulate the release of ____ from _____ of the ____ , especially in the onset of therapy
Definition
insulin
beta cells
pancreas
Term
how much do sulfonylureas lower the A1C by
Definition
1.5-2% pts
Term
Absorption of sulfonylureas are generally rapid, fairly complete, and unaffected by food except for short-acting ______, which is most effective when taken on an empty stomach.
Definition
glipizide
Term
Contraindications or Precautions to sulfonylureas in:
Definition
Sulfonylurea hypersensitivity
Diabetic ketoacidiosis
Severe Infections
Surgery, trauma, or other severe metabolic stressor
Elderly and patients with hepatic insufficiency are susceptible to the hypoglycemic effects of glucose-lowering agents
Term
what is the most serious complication to sulfonylureas?
Definition
hypoglycemia
Term
what may contribute to hypoglycemia in age related pts taking sulfonylureas?
Definition
renal/hepatic function decline
Term
silfonylureas:
skin rash in __%
GI problems in __%
Definition
2
5
Term
Hematologic changes-like thrombocytopenia when taking sulfonylureas are associated with ___ generation, but rare with ____ generation.
Definition
1st
2nd
Term
____ of all patients with Type II Diabetes mellitus respond initially to sulfonylureas
Definition
75%-90%
Term
Factors favoring a beneficial response to sulfonylureas
- Recently diagnosed ___ years
- ___+ yo
- Weight within ___% of ideal body weight
- FBG< ____mg/dl
- Never required insulin or requires less than ___ units/day
Definition
<5
40
110%-160%
200
40
Term
Sulfonylureas:
Usual reduction in FBG of ___ mg/dl
Usual reduction in A1c of ___%
___% of patients will experience secondary failure within ___ years
Definition
50-60
1-2%
5-20%
1-2
Term
glyburide
starting dose:
max dose:
metabolized:
Definition
5 mg
20 mg
liver
Term
glyburide
starting dose
max dose
metabolized
Definition
3 mg
12 mg
liver
Term
glipizide
starting dose
max dose
metabolized where
Definition
5 mg
40 mg
liver
Term
glipizide xl
starting dose
max dose
metabolized where
Definition
5 mg
20 mg
slow form release
Term
what is the only sulfonylurea metabolized in the liver?
Definition
glipizide
Term
glimepiride
starting dose
max dose
metabolized
Definition
1-2 mg
8 mg
liver
Term
_____ drugs increase insulin release in response to food, keeping blood glucose from rising high after meals. MOA?
Definition
meglitinides
-Stimulates insulin release from the beta-cells of the pancreas
Term
what drug acts like a sulfonylurea but is not one?
Definition
meglitinides/phenylalanies
Term
______ Targets post-meal glucose spikes by significantly reducing prandial glucose elevations
Usual reduction in A1c is ____&____% when used in combination
Definition
Meglitinies/Phenylalanies 

1-2
2-3
Term
what drug is good for shift workers?
Definition
Meglitinies/Phenylalanies
Term
contraindications to Meglitinies/Phenylalanies
Definition
Known hypersensitivity to the drug or its inactive ingredients
Type 1 Diabetes
Diabetic ketoacidosis
Term
Nateglinide (Starlix)
starting dose
max dose
metabolized
Definition
120 mg w/meals
120 mg 3x/day
liver, eliminated renally
Term
Repaglinide (Prandin)
starting dose
max dose
caution with?
Definition
0.5-1 mg w/meals
16 mg/daily
* Caution with gemfibrozil or trimethoprim potential hypoglyemia
Term
____ lowers blood glucose primarily by reducing glucose production in the liver.
Definition
Biguanides (Metformin)
Term
Metformin MOA
1:
2:
Definition
1; decreases hepatic glucose production
2: improves insulin sensitivity, decreases intestinal absorption of glucose
Term
metformin (biguanides) is indicated in what ages? lowers A1C by?
Definition
10+
XL: 17+
1.5%
Term
Metformin given as monotherapy in the UKPDS reduced all-cause mortality in obese patients by ____
Definition
1/3
Term
____ is associated with modest favorable effect on plasma lipid levels
Definition
Metformin
Term
Biguanides contraindications
Definition
- Patients with renal disease or impairment
- Congestive heart failure requiring pharmacologic treatment
- Acute or chronic metabolic acidosis
- Metformin should be discontinued in individuals scheduled to receive IV radiocontrast media at the time of procedure and for 48 hours thereafter, since these agents have been associated with acute renal dysfunction
Term
max dose of metformin
Definition
1,000 BID
Term
metformin prescribing precautions
Definition
- 80+ yo should not be titrated to max dose. monitor renal fxn
- conditions predisposing pts to renal insuff or hypoxia
- temp suspend prior to surgery
- liver ds
- hx of alcohol abuse
Term
MC side effect of Biguanides. others?
Definition
diarrhea
GI distress, dermatologic, decrease B12 absorption, decrease folic acid absorption, blood dyscrasias, lactic acidosis
Term
Metformin
starting dose
max dose
metabolism?
Definition
500 mg bid
2,000 mg (1,000 bid)
- no metabolism. renally excreted
Term
metformin XL
starting dose
max dose
metabolism?
Definition
500-1,000 mg QPM
2,000 mg
take full dose w/evening meal or split
Term
____is halted in the liver by metformin. excess is normally secreted via kidneys in healthy people but if kidney impairment they cannot. what can this lead to?
Definition
gluconeogensis (LACTATE)
- metabolic acidosis
Term
what should you not use if you have Crohns/UC?
Definition
Biguanides (metformin)
Term
names of 2 insulin sensitizers (1 is discontinued)
Definition
Avandia (d/c)
Actos
Term
insulin sensitizer MOA
Definition
- Improvement in insulin sensitivity in skeletal muscle and adipose tissue
- secondary dec in hepatic glucose output
Term
do insulin sensitizers stimulate insulin secretion? what can happen from this?
Definition
NO
- so it wont cause pt to become hypoglycemic
Term
insulin sensitizers:
A1C reduction
___ weeks to see dec in blood glucose
what does it help improve?
Definition
1.5-2.5%
2-4 weeks
maintain/improve beta cell function over time
Term
who should you not use insulin sensitizers in?
Definition
pregnancy or breast feeding
CHF class 3 or 4
Term
what further increases the risk of CHF in pts taking insulin sensitizers?
Definition
combo therapy with insulin
Term
increased incidence of what when taking insulin sensitizers? (4)
Definition
CHF
macular edema
bone fx in females
resumption of ovulation in post menopausal women
Term
what can reverse anovulation?
Definition
insulin sensitizers
Term
what should you check prior to starting insulin sensitizer therapy and periodically thereafter?
Definition
LFTs
(dont ever start with statins bc you wont know which is impacting liver)
Term
what drugs work in the intestine to reduce glucose absorption?
Definition
alpha-glucosidase inhibitors
(Acarbose, Miglitol)
Term
what are 2 examples of alpha-glucosidase inhibitors. how much do they lower the A1C by?
Definition
Acarbose, Miglitol
0.5-0.8%
Term
what does synthetic amylin do?
Definition
limits the amt of glucose released from liver
slows emptying of stomach
reduces amt insulin needed
Term
when should amylin therapy be considered? (2)
Definition
- failed to achieve glycemic control despite insulin
- having ongoing care under HC professional skilled in use of insulin
Term
when should amylin not be used?
Definition
A1C >9%
poor compliance
hypoglycemia
gastroparesis
pediatrics
pts requiring drugs that stimulate GI motility
Term
black box warning of amylin?
Definition
its used w/insulin so its associated w/risk of insulin induced SEVERE HYPOGLYCEMIA in T1DM, often 3 hrs post use
**educate for when driving!!!
Term
___ effect in diminished in T2DM pts. reduced circulation by as much as ___%
Definition
Incretin
54%
Term
Up to 60% of post-prandial insulin secretion in healthy individuals is attributable to the ____ effect
Definition
incretin
Term
2 examples of incretin hormones released from intestinal mucosa upon GI exposure to nutrients inducing insulin secretion
Definition
GLP-1
GIP
Term
GIP:
stimulates what?
effect on gastric emptying?
effect on satiety or weight?
glucagon secretion relationship?
Definition
Stimulates insulin response from the beta cells in glucose-dependent manner
Has minimal effect on gastric emptying
Has no significant effects on satiety or body weight
Does not appear to inhibit glucagon secretion
Term
GLP-1:
stimulates what?
gastric emptying effect?
effect on food intake and body weight?***
Definition
Stimulates insulin response from the beta cells in glucose dependent manner
Inhibits gastric emptying
Reduces food intake and body weight
Inhibits glucagon secretion from alpha cells in a glucose dependent manner
Term
how is the response to incretins in T2DM? examples?
Definition
impaired

Decreased secretion of GLP-1
Decreased response to GIP
Term
GLP-1 and GIP therapy are limited by what? what are they rapidly degraded by?
Definition
short half life
DPP-4
Term
overall goal with incretins is to do what? how is this done?
Definition
increase GLP-1

Add GLP-1 analogues with longer half life
Exenatide and Exenatide LAR (Byetta)
Liraglutide (Victoza)

Block the DDP-4 to slow the enzymatic degradation of GLP-1
Sitagliptin (Januvia)
Saxaglipton (Onglyza)
Term
what are 2 GLP-1 analogues with a longer half life?
Definition
Byetta
Victoza
Term
what 2 drugs are DDP-4 inhibitors? what do they do?
Definition
Januvia, Onglyza
- slow the enzymatic degradation of GLP-1
Term
what must used with DDP-4 to lower blood glucose in T2DM pts?
Definition
DIET AND EXERCISE******
Term
what can DDP-4 inhibitors be combo'd with?
Definition
sulfonylurea, metformin and actos
Term
MOA of DPP-4s?
Definition
increases active incretin levels increases insulin release decreases glucagon secretion
Term
contraindications w/DPP-4s?
Definition
History of serious hypersensitivity reaction to sitagliptin (Januvia). These reactions include anaphylaxis, angioedema, and exfoliative skin conditions including Stevens-Johnson syndrome.
Term
Byetta does what? synthetic form of ______. binds to ____ but is resistant to _____
Definition
mimics GLP-1
salivary protein from Gila monster
binds GLP-1
resistant to DPP-4 degradation
Term
what GLP-1 agonist is good for grazers? why?
Definition
Byetta
binds and activates GLP-1 receptor which leads to:
- inc insulin secretion w/meal
- dec glucagon secretion
- dec gastric emptying
- inc satiety effect
Term
what else do you need to write a prescription for with byetta?
Definition
needles
Term
Byetta:
- peak plasma concentration in ___
- eliminated ____
- not recommended if CrCl <_____
Definition
2 hrs
renaly
<30 mL/min
Term
what is byetta contraindicated in? (2)
precautions in?
Definition
- T1DM, DKA
- kids, Preg C, nursing, renal ds, severe GI ds
Term
when should byetta never be administered?
Definition
after a meal
Term
what are the possible byetta doses? initial? how much can you increase it by?
Definition
5 mcg or 10 mcg pen
- initial: 5 mcg BID w/60 min period before AM and PM meal
- increase by 10 mcg SC twice after 1 month
Term
when do you have to adjust byetta?
Definition
when its added to sulfonylurea (might reduce sulfonylurea to reduce hypoglycemic effect)
[not metformin or TZD]
Term
what are the byetta side effects like? what is a positive one?
Definition
transient - N/V/D
+: lose 10 lbs
Term
in what situation would you NEVER give a pt byetta? why?
Definition
pancreatitis or high triglycerides
- GLP-1 agonists can mask initial signs of pancreatitis
Term
which GLP-1 agonist has a longer half life? byetta or victoza?
Definition
victoza
Term
black box warning for victoza?
Definition
thyroid C cell tumors including medullary thyroid carcinoma
Term
max dose of victoza?
Definition
1.2-.18 mg/day
Term
dosing of victoza?
Definition
daily, independent of meals
start: 0.6 mg
>1 week: 1.2 mg/day
max: 1.2-1.8 mg/day
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