Anesthesia Pharmacology Chapter
23: Co-Existing Disease: Diabetes Practice Questions
Most common complication insulin therapy:
- lipodystrophies
- hypotension
- gallstones
- hypoglycemia
- retinopathy
Effects associated with insulin- induced hypoglycemia:
- tachycardia
- palpitations
- nausea
- sweating
- all of the above
Effective in the immediate management of the comatose, hypoglycemic patient.
- have the patient drink orange juice
- provide IV infusion of 50% glucose solution
- glucagon injection -- subcutaneous or intramuscular
- B & C
- A,B & C
Causes of hypoglycemia in a diabetic patient:
- insulin overdosage
- delay in eating (later than normal)
- unusual physical activity
- A & B
- A,B & C
Blockade of signs of diabetic hypoglycemia:
- diabetic neuropathy
- metoprolol (Lopressor)
- propranolol (Inderal)
- B & C
- A, B & C
Insulin allergy:
- immediate response is IgG mediated
- anaphylaxis may result
- change in insulin species(e.g. from pure pork or human from beef)
- B & C
- A, B & C
Biguanide-- oral hypoglycemic drug:
- Tolbutamide (Orinase)
- acarbose (Precose)
- metformin (Glucophage)
- troglitazone (Rezulin)
- none of the above
Proposed mechanism(s) for hypoglycemic action of sulfonylureas:
- enhancement of insulin release from pancreatic beta cells
- increase of serum glucagon levels
- potentiation of insulin effects at target tissues
- A & B
- A & C
Sulfonylurea hypoglycemic drug:receptor sites
- muscarinic receptor
- calcium channel
- potassium channel
- beta adrenergic receptor
- alpha adrenergic receptor
Inhibitors of insulin release:
- somatostatin
- diazoxide (Hyperstat)
- phenytoin (Dilantin)
- vinblastine (Velban)
- all of the above
Second generation sulfonylurea:
- chlorpropamide (Diabinese)
- tolazamide (Tolinase)
- acetohexamide
- glipizide (Glucotrol)
- Tolbutamide (Orinase)
Second-generation sulfonylurea approved for once-daily use as monotherapy in management of Type II diabetes:
- chlorpropamide (Diabinese)
- glyburide (Micronase, DiaBeta)
- glipizide (Glucotrol)
- glimepiride (Amaryl)
- metformin (Glucophage)
Oral hypoglycemic agent most likely to be prescribed for patients with refractory obesity and who exhibit insulin resistance syndrome: in
- acetohexamide
- chlorpropamide (Diabinese)
- glyburide (Micronase, DiaBeta)
- metformin (Glucophage)
- Tolbutamide (Orinase)
Aldose reductase inhibitor:
- metformin (Glucophage)
- acetazolamide (Diamox)
- Tolbutamide (Orinase)
- acarbose (Precose)
- troglitazone (Rezulin)
Cardiac effects of glucagon:
- positive inotropic; positive chronotropic
- negative inotropic negative chronotropic
Immediate pharmacologic/metabolic consequence of glucagon infusion:
- increase hepatic glycogen; decrease blood glucose
- decrease blood glucose; decrease stored hepatic glycogen
- increased blood glucose; decreased hepatic glycogen
- decreased blood glucose; increase stored hepatic glycogen
- none of the above
Glucagon effect(s)-- at pharmacologic doses:
- promote insulin release from normal pancreatic B cells
- promote catecholamine release from pheochromocytoma
- promote calcitonin release from medullary carcinoma cells
- A & B
- A, B & C
Following very significant alpha and beta-adrenergic blocker overdosage; most likely to promote increased inotropic and chronotropic cardiac response
- isoproterenol (Isuprel)
- phenylephrine (Neo-Synephrine)
- glucagon
- mecamylamine (Inversine)
- none of the above would be effective