Diabetes Mellitus is a chronic metabolic disorder characterized by high blood sugar (hyperglycemia) due to defects in insulin secretion, insulin action, or both.
Type 1 Diabetes Mellitus (T1DM): An autoimmune condition where the immune system attacks insulin-producing beta cells in the pancreas. Usually diagnosed in children and young adults.
Type 2 Diabetes Mellitus (T2DM): A more common form of diabetes characterized by insulin resistance and relative insulin deficiency. Often associated with obesity and typically diagnosed in adulthood.
Similarities and Differences
Similarities:
Both types result in high blood glucose levels.
Require monitoring of blood glucose to manage health and prevent complications.
Both may lead to complications like neuropathy, nephropathy, and retinopathy if uncontrolled.
Differences:
Etiology:
T1DM: Autoimmune destruction of beta cells.
T2DM: Insulin resistance and progressive beta cell dysfunction.
Onset:
T1DM: Often abrupt onset, typically in childhood or adolescence.
T2DM: Gradual onset, often in adults over 45 years.
Treatment:
T1DM: Requires insulin for survival.
T2DM: May initially be managed with lifestyle changes; may also require insulin or oral medications.
Risk Factors
Type 1 Diabetes: Genetic predisposition, autoimmune disease.
Type 2 Diabetes: Obesity, sedentary lifestyle, family history, older age, high blood pressure, abnormal cholesterol levels, and history of gestational diabetes.
Nursing Implications
Understand the patient’s type of diabetes and individual needs.
Be prepared to administer medications and educate the patient about self-management.
Monitor for signs of hyperglycemia (high blood sugar) and hypoglycemia (low blood sugar).
Patient Assessment and Monitoring
Key Assessments
Regular monitoring of blood glucose levels -- target levels as determined by healthcare providers.
Assess body weight, dietary habits, and physical activity levels.
Monitor for diabetes-related complications (e.g., foot exams for neuropathy).
Monitoring Recommendations
Blood glucose monitoring:
Frequency may depend on the type of diabetes and treatment regimen.
T1DM: Often multiple times daily.
T2DM: May vary based on control and treatment plans.
HbA1c testing: Recommended at least every 3-6 months.
Patient Teaching
Essential Information for Patients
Importance of daily self-monitoring of blood glucose and keeping records.
Understanding of how different factors can affect blood sugar levels:
Diet composition (carbohydrate intake)
Physical activity
Illness or stress
Administration of medication:
Specifics on how to take insulin and/or oral medications (e.g., Metformin).
Recognizing signs and symptoms of hypo- and hyperglycemia and appropriate actions to take.
Home Management
Patients should learn:
Monitoring techniques for blood glucose (e.g., use of glucometers).
Importance of medication adherence and methods of injections (insulin).
Meal planning and carbohydrate counting.
Emergency contacts and protocols for low blood sugar episodes.
Treatment and Medications for Diabetes Mellitus
Overview of Medications
Metformin: First-line oral medication for T2DM that helps lower blood sugar levels by improving insulin sensitivity and decreasing hepatic glucose production.
Insulin Therapy: Essential for T1DM and sometimes required for advanced T2DM.
Types of Insulin
Rapid-acting Insulin (e.g., Lispro, Aspart): Starts working within 15 minutes, peaks in 1-2 hours, lasts 3-5 hours.
Short-acting Insulin (e.g., Regular Insulin): Starts working within 30 minutes, peaks in 2-4 hours, lasts 5-8 hours.
Intermediate-acting Insulin (e.g., NPH): Starts in 1-2 hours, peaks in 4-12 hours, lasts 12-18 hours.
Long-acting Insulin (e.g., Glargine, Detemir): Starts in 1-2 hours, no pronounced peak, lasts up to 24 hours.