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Endocrine
Endocrine Lecture
| Question | Answer |
|---|---|
| Why is C-peptide found in amounts equal to insulin in diabetes? | Because insulin and C-peptide are linked when first made by the pancreas. The level of C-peptide in the blood can show how much insulin is being made by the pancreas. |
| C-Peptide level in type 1 diabetes will be: | low, because no insulin is being produced |
| C-peptide level in type-2 diabetes will be: | normal or high |
| biguanide (Metformin) | gold standard for type 2 diabetes |
| Metformin dosage | 500mg qd to bid up to 2000mg/d |
| Metformin ADR | GI upset, lactic acidosis, 2 week onset |
| Metformin Benefits | decreases blood sugar, weight loss, decreased vascular issues |
| Sulfonylureas (insulin secretagogues) | glipizide (Glucotrol), glyburide (Diabeta), glimerpiride (Amaryl) |
| Sulfonylureas effectiveness | work good for awhile but then start to creep up again |
| Sulfonylureas dosage | most are BID (Amaryl qd, diabenese qod), take 30 minutes before meal. Do not skip meals!!! |
| Sulfonylureas caution | Sulfa allergy, hepatic/renal failure, weight gain, GI distress, malnutrition, eating d/o, adrenal insufficiency. |
| Sulfonylureas benefits | Rapid onset, cheap (generic) effective |
| Meglitinides- Repaglinide (Prandin) Nateglinide (Starlix) | Can skip meals, good for irregular eating habits |
| Thiazolidinediones (TZDS) | Pioglitazone (actos), Rosiglitazone (Avandia) |
| Avoid Avandia in: | CHF and CAD |
| Actos and Avandia major ADR | fluid retention, may give diuretic to overcome |
| Sitagliptin (Januvia) and Sazgliptin (onglyza) | works on carb absorption, increase satiety, slow gastric emptying (expensive) |
| Januvia | 100 mg q day |
| Onglyza | 5 mg q day |
| Fasting glucose should be? | 90-130mg/dl |
| A1C should be | <6.5-7 |