DIABETES Flashcards
WHEN IS INSULIN GIVEN IV?
1) Patients with KETOACIDOSIS
2) During the PERIOPERATIVE PERIOD
3) During LABOR + DELIVERY
4) In ICU SITUATIONS
–> Regular human insulin is used for IV therapy
WHAT IS BASAL BOLUS INSULIN REGIMEN?
- one DAILY shot of GLARGINE or DETEMIR (long acting) as well as (usually take it at bed time)
- Doses of lispro, aspart, or glulisine to provide coverage for each meal
rules:
- long actin insulin can be given at bedtime or in the morning (bedtime more usual)
- if patient skips a meal, they omit a premeal bolus
- if the meal is larger than normal, they increase the premeal bolus
- similar dose adjustements can be made to accommodate snacks, exercise patterns, and acute illnesses
WHAT IS INSULIN PUMP THERAPY?
- is the best way to mimic normal insulin secretion
- consists of a battery-operated pump and a computer that programs the pump to deliver predetermined amounts of insulin
–> only use 1 type of insulin: usually use GLULISINE, LISPRO, or ASPART (rapid acting insulins) into the pump
DRUGS INTERACTIONS THAT CAUSE HYPOGLYCEMIA
1) ETHANOL –> decreases gluconeogenesis (messes with NADH/NAD
2) BETA BLOCKERS –> masks symptoms and decreases gluconeogenesis and glycogneolysis
3) SALICYLATES –>
- enhance B cell sensitivity to glucose
- weak peripheral insulin-like action
DRUG INTERACTIONS THAT CAUSE HYPERGLYCEMIA WITH INSULIN
1) EPINEPHRINE, GLUCOCORTICOIDS, ATYPICAL ANTIPSYCHOTICS, HIV PROTEASE INHIBS
–> d/t anti insulin action at peripheral tissues
2) PHENYTOIN, CLONIDINE, CA2+ CHANNEL BLOCKERS
–> decrease insulin secretion DIRECTLY
3) DIURETICS
–> deplete K+ which inhibits insulin secretion indirectly
HOW TO MANAGE A DIABETIC PATIENT IN HOSPITAL?
- ORAL antibiabetic agents should be DISCONTINUED during acute illness and replaced with INSULIN
- oral agents can be restarted on discharge
FIRST AGENT USED IN DM IF LIFESTYLE INTERVENTION DID NOT ACHEIVE HbA1c goals?
METFORMIN
- monotherapy with most non-insulin antidiabetic agents can reduce HbA1c ~1%
- patients with HbA1c >9% are unlikely to achieve HbA1c goals with monotherapy
therefore, therapy may be started with a combination of two non-insulin agents or with insulin itself
WHEN TO ADVANCE TO DUAL THERAPY?
IF MONOTHERAPY DOES NOT ACHIEVE HbA1c goal over 3 MONTHS, the next step is to add a second agent:
1) ORAL AGENT
2) EXENATIDE OR
3) INSULIN
- the higher the HbA1c, the more likely insulin will be required
- on average, any second non-insulin agent can be expected to reduce HbA1c by an additional 1%
WHEN TO ADVANCE TO TRIPLE COMBO THERAPY?
-if the 2-drug combo fails to achieve the glycemic target a third agent can be added
–> the most robust response will usually be with insulin
-diabets is associated with progressive B-cell loss: many patients will eventually need t obe transitioned to insulin
-the decision to transition to insulin should be favored when the HbA1c > 8.5%
WHEN TO TRANSFER TO INSULIN?
WHAT KIND OF INSULIN?
- the decision to transition to insulin should be favored when the HbA1c > 8.5%
- insulin is typically begun at a LOW DOSE, with a SINGLE INJECTION of BASAL INSULIN
- either
1) NPH (intermediate acting) OR
2) GLARGINE/DETEMIR (long acting) insulin may be used - the dose is then uptitrated
PATIENT HAS SIGNIF POSTPRANDIAL GLUOCCSE EXCURSIONS… which insulin to use?
- typically rapid acitng insulins are used
1) LISPRO
2) ASPART
3) GLULISINE
WHICH DRUG IS MOST EFFECTIVE OF DIABETES MEDICATIONS IN LOWERING GLYCEMIA
INSULIN
- it can decrase any level of elecvated HbA1C to or close to the therapeutic goal
- there is NO MAXIMUM DOSE of insulin beyond which a therapeutic effect will not occur
- large doses of insulin may be necessary to overcome the insulin resistance of type 2 DM
WHAT 4 SITUATIONS IS INSULIN WARRANTED TO USE AS THE INITIAL THERAPY:
1) SIGNIF HYPERGLYCEMIC CONDITIONS
2) KETONURIA
3) HbA1c > 10%
4) RANDOM GLUCOSE > 300mg/dL
DIABETS AND HTN… WHAT TO GIVE?
GIVE EITHER
1) ACE INHIBITOR OR
2) ARB
DIABETES + DYSLIPIDEMIA?
STATINS
statins should be given REGARDLESS of lipid levels to diabetic patients
1) WITH overt CVD
2) WITHOUT CVD but who are
- >40 y/o and have
- 1 or more other CVD risk factors (family history of CVD, hypertension, smoking, dyslipidemia, or albuminuria)