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DM Type 1 Overview
- - Usually diagnosed in children & YA
- - AKA "juvenile diabetes"
- - Body does not produce insulin (very little, if any insulin)
- - Insulin required in order for body to properly use sugar
- -Insulin = transport for glucose
- Insulin's role is to take glucose from blood and carry it into cells where it can be used to provide energy for body to work
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In Depth
Type 1 usually progressive autoimmune disease disease
Beta cells produce insulin, but in DM 1 beta cells that produce insulinare slowly destroyed by body's own immune system
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Causes
Genetics- 10% if first degree relative have DM; father>mother
Viruses- Cosackie virus, mumps, rubella
Pancreatic damage
Medications- corticosteroids, BB, and Phenytoin)-- TEMPORARY IDDM
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History
- Polyuria- excessive URINATION
- May present as nocturia, bedwetting, or incontinence in previously continent child
Polydipsia- excessive THIRST
Weight Loss- 10-30%
Prolonged or recurrent candidal infection
- Increased fatigue, lethary
- Muscle cramping
- Irritability/emotional lability
- Headaches, abdominal discomfort, nausea
- Vision changes, such as blurriness
- Anxiety attacks
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Hyperglycemia
- Hyperglyceia = predominant "sign" of DM
- Chronically uncontrolled, leads to MICROvascular destruction and end organ damage
- PVD/PAD
- Cause distal neuropathy
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DIAGNOSIS
Fasting glucose >126 mg/dL
Random glucose >200 mg/dL in pt with classic symptoms of hyperglycemia
Oral glucose tolerance test; plasma glucose >20 mg/dL 2 hours after glucose load
Glycated hemoglobin (HbA1C) levels >6.5%
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Insulin
ORAL hypoglycemics NOT indicated in DM 1
Basal, long-acting insulin once/twice daily
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Complications
Microvascular disease (retinopathy, nephropathy, neuropathy)
Hyperlipidemia
Macrovascular disease (coronary and cerebral artery disease)
Chronic foot ulcers/amputations, diabetic ketoacidosis, excessive weight gain, increased risk for pre-eclampsia, and preterm delivery, driving mishaps, psychologic problems of chronic disease, HYPOGLYCEMIA
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Hypoglycemia
Defined as plasma glucose less than 70 mg/dL
- S/S
- -Diaphoresis (excesive sweating)
- -Tachycardia
- -Hunger
- -Shakiness
- -Slurred speech
- -Altered mental status
- -Seizure
- -Coma
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DKA
- MEDICAL EMERGENCY characterized by:
- - Hyperglycemia
- - Ketosis (ketones=acids)
- - Metabolic acidosis
*fruity odor to breath (acetone smell)
S/S- HYPOtension, tachycardia, hypothermia, tachypnea, KUSSMAUL respirations, decreased reflexes, abdominal tenderness, dry mucus membranes, poor skin turgor, decreased perspirations, confusion, coma
Labs- hyperglycemic, hyponatremic, elevated BUN/Cr, serum ketosis, metoblic acidosis or ABG
- **START ISOSTONIC (0.9 % saline) to rehydrate
- -Will need supplemental K infusion with IV insulin and sodium bicarbonate to correct acidosis
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Rapid Acting
Insulin lispro (Humalog)
Insulin aspart (NovoLog)
Insulin glulisine (Apidra)
- Onset- 1/4-1/2
- Peak action- "
- Effective duration- 3-4
- Max duration- 4-6
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Short acting
- Regular (soluble)
- Onset- 1/2-1
- Peak- 2-3
- Effective duration- 3-4
- Max- 6-8
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Intermediate-acting
- NPH (isophane)
- Onset- 2-4
- Peak- 6-10
- Effective duration- 10-16
- Max- 14-18
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Long-acting
Insulin glargine (Lantus)
Insulin determir (Levemir)
- Onset- 3-4
- Peak- 8-16 (Lantus) and 6-8 (Levemir, but relatively flat)
- Effective duration- 18-20 (Lantus) and 14 (Levemir)
- Max-20-24 (Lantus) and up to 20-24 hours (Levemir)
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