Exam 2 Flashcards
(199 cards)
Intensive insulin regimens have proven their effectiveness with the greatest impact on lowering blood glucose. Which of these is an intensive insulin regimen?
When using the intensive insulin therapy approach, three to four injections are administered per day. This regimen involves 1:1 basal bolus dosing with long-acting insulin (LAI) or the new ultra long-acting insulin (ULAI) administered either at breakfast or bedtime with either rapid-acting insulin (RAI) or short-acting insulin (SAI) bolus doses before each meal. An intensive insulin therapy would include a basal/bolus insulin combination.
EX: Lantus and Lispro
To monitor the effectiveness of insulin lispro, the APN will instruct the patient to closely monitor which of these?
Postprandial glucose would be used to monitor the effectiveness of rapid-acting insulin (RAI). The RAIs are used as bolus insulin doses to correct hyperglycemia or to affect food eaten at meals, specifically carbohydrates.
Insulin
Caution, Contraindications, Pregnancy, Pediatrics
Caution: Hepatic dysfx, Renal Impairment, Hypo/Hyperthyroidism
Pregnancy & Pediatric approved
Glucagon
Pharmacodynamics, Contraindication
MOA: liver glucogenolysis
Contraindication:
- hypersensitivity to glucagon or lactose
- pts w/insulinoma or pheochromocytoma
Glucophage (Metformin)
drug class, MOA, Contraindications, Adverse Effects, Pregnancy/Breastfeeding, peds
Biguanides Insulin Sensitizer
- **Do not cause hypoglycemia
- **1st line treatment
MOA:
- ^Peripheral glucose uptake
- Decrease hepatic glucose production & intestinal absorption glucose
CONTRAINDICATIONS:
-Liver/Renal disease
ADVERSE EFFECTS:
- lactic acidosis (prevents lactate converted to glucose)
- GI upset: diarrhea/bloating/nausea/flatulence
- Vit B12 Deficiency
PREGNANCY & BREASTFEEDING: approved
PEDIATRICS: >10 years
Labs:
GFR
HbA1C
Ketones
Pioglitazone (Actos) Rosiglitazone (Avandia) Drug Class MOA Contraindications Black Box Warning Adverse Effects Drug Interaction Pregnancy/Lactation/children
Thiazolidinediones TZD Insulin Sensitizer
***Do not cause hypoglycemia
MOA:
- ^insulin sensitivity
- Insulin utilization in muscles, liver and ADIPOSE.
- decreases hepatic glucose production
Contraindications:
- Heart failure (Class III & IV)
- Liver Disease (ALT >2.5x normal limit)
Black Box Warning
- Bladder Cancer
- Hepatoxicity
- Heart Failure
Adverse Effects:
- fluid retention/weight gain*** monitor for HF
- Bone Fracture**
- Myalgia**
- URI**
- htn
Drug Interaction:
CYP34A = Birth Control
Pregnancy/Lactation/children NO!
How much can Pioglitazone lower A1C?
1.5 to 2%
There is some debate about the use of metformin in patients with type 1 diabetes mellitus (DM) because metformin is more effective in patients with which characteristics?
Tissue insensitivity to insulin
“Metformin increases peripheral glucose uptake and utilization (insulin sensitivity), which is not a feature of type 1 DM.”
Metformin should be discontinued and switched to a different medication for which reason?
Metformin is contraindicated with GFR below 30 mL/min.
Glipizide, Glyburide, Glimepiride Drug Class MOA Caution Contraindications #3 Adverse Effects #3 Pregnancy/lactation/peds Drug Interactions #2 Labs
Sulfonylureas
- **Insulin Secretagogues
- **Type 2 diabetics only
- **Prandial coverage
MOA:
- increase endogenous insulin release from beta cells
- Reduce glucose released from liver
Contraindications:
- Elderly (hypoglycemia)
- Sulfa allergy
- G6PD
Adverse Effects:
- Hypoglycemia
- Weight gain (Potentiates Antidiuretic Hormone)
- Blood Dyscrasia
Drug Interaction:
- Thiazide
- Sulfas
Pregnancy/lactation/peds: NO!
Labs:
- GFR
- HbA1C
- CBC
How. much do you expect A1C to be reduced using glipizide?
1-2%
Repaglinide (Prandin)
nateglinide (Starlix)
Drug Class Most effective at?? Patient Education MOA Contraindication pregnancy/lactation/peds Side Effects #4
Meglitinides
Insulin Secretagogues-Most effective at reducing postprandial glucose ***Quicker on quicker off
Patient education: Take 30mins before a meal,
skip meal skip dose
MOA:
- Block ATP-dep channels»_space; INCREASES CALCIUM»_space;pancreas secretes insulin
- Stimulate insulin release from beta cells
Contraindication:
-Elderly
Pregnancy/lactation/peds NO!
Adverse Effects:
- Hypoglycemia & Weight gain
- H/A
- Diarrhea
- Chest & back pain
Acarbose
Drug Class Patient education (3) MOA Adverse Effects (2) Caution Contraindication (2) preg/lact/peds
Alpha-Glucosidase Inhibitors
Patient Education: GI upset, “add on” therapy, take w/food, don’t give sucrose for hypoglycemia
MOA:
-inhibits absorption carbs in small bowel
Adverse Effects:
- GI upset
- Elevated serum transaminases (Monitor LFTs)
Caution:
Renal/Hepatic impairment
Contraindication:
-Bowel disease/predisposed to intestinal obstruction
PREGNANCY/LACTATION/peds NO!!
“-flozins”
Canagliflozin (Invokana)
Dapagliflozin
Drug Class MOA Adverse Effects #6 Contraindication #1 Black Box Warning preg/lact/peds Patient education Labs
Selective Sodium-Glucose Cotransporter 2 Inhibitors
(SGLT-2 Inhibitors)
“Flowin’”
MOA:
-Inhibit SGLT-2 in proximal tubule = urinary excretion of glucose
Adverse Effects
- Hyperkalemia
- GU: fungal infect/UTI/urinary frequency
- Hyperlipidemia
- Bladder Cancer
- Bone fracture
- 2-3x risk BKA
Contraindication:
Renal Failure
Black Box:
-Fournier’s gangrene
preg/lact/peds NO!
Education:
Monitor for new pain or sores
Labs:
- Potassium &
- Lipids
A 72 y/o male patient is taking an SGLT2 inhibitor for type 2 diabetes mellitus. The APN should be concerned if the patient reports which symptom?
Falls
A history of falls may suggest hypotension as a result of hypovolemia.
“-gliptins”
MOA (2) Caution preg/lact/peds adverse effects #4 Patient Education Drug Interaction Labs
Dipeptidyl Peptidase-4 Inhibitors
DPP-4 Inhibitors
MOA:
- Inhibit DPP-4 enzyme = prolonged (GLP1) incretin in GI tract = increase insulin synthesis & shut off glucagon
- Effect Pre & post prandial Blood glucose
Caution:
-Renal Impairment
Preg/lact/ped NO!
Adverse Effects:
- Pancreatitis (makes pancreas work harder)
- hypersensitivity
- Arthralgas
- hypoglycemia (when combined with secretagogue
Patient Education: Report abdominal pain (pancreatitis)
Drug Interaction:
-ACE = angioedema
Labs
- GFR
- HbA1C
“-tides”
Exenatide (Byetta), Liraglutide (Victoza)
Dulaglutide (Trulicity)
Drug Class MOA Adverse Effects Contraindication #2 Black box warning preg/lact/peds
GLP-1 Agonist
MOA:
- injection!
- mimis incretin = increase insulin secretion & decrease glucagon, slows gastric emptying
- protein binding
Adverse Effects:
-N/V/D
Contraindication:
ESRD
GI disease
Black Box Warning:
Thyroid tumor
preg/lact/ped NO
Levothyroxine
Patient Education
Caution (2) Contraindication (1) preg/lact/peds Adverse Effects Education
MOA:
Synthetic T4
Caution:
CVD
Adrenal insuff
Contraindications:
Recent MI
preg/lact/peds YES
Adverse Effects:
^HR ^BP insomnia etc etc
Education: Recheck 6-8 weeks
Methimazole (Tapazole) Indication MOA Adverse Effects #2 Caution preg lact peds
Indication: Hyperthyroidism
MOA:
Prevents production of Thyroid Hormone
Adverse Effects:
- Urticaria
- Blood Dyscrasia,
- Bone marrow suppression
Caution:
Other medications that can suppress bone marrow
preg: Do NOT use in 1st trimester
lact: lowest dose
peds: YES!
Propylthiouracil (PTU) Indication MOA Adverse Effects #2 Black Box warning preg lact peds caution #2
Indication: Hyperthyroidism
MOA:
- Prevents comversion of T4 to T3
- Highly protein-bound = more drug interactions
Adverse Effects:
- Urticaria
- Blood Dyscrasia
- GI upset
Black Box Warning:
Hepatotoxicity
preg: 1st trimester
lact: low dose
peds: No (undeveloped liver)
Caution:
- Increased bleeding risk
- Other meds that suppress bone marrow
Which symptom should be reported to the health-care provider and may be a reason to discontinue an antithyroid medication?
The most common potential adverse reaction is agranulocytosis. Patients are taught to report sore throat, fever, chills, rash, and unusual bleeding or bruising.
For the diabetic patient with hypothyroidism, the APN should expect to take which action?
Decrease Basal Insulin
Hypothyroidism may delay insulin turnover, requiring less insulin to treat diabetes mellitus.
Alpha-glucosidase inhibitors function by which primary mechanism of action?
Alpha-glucosidase inhibitors delay the absorption of complex CHO from the small bowel.
Canagliflozin should not be initiated in patients with which condition?
ESRD