Comprehensive Diabetes and Hypoglycemia: Pathophysiology, Manifestations, and Management

What is the pathophysiology of therapy-induced hypoglycemia?

It involves impaired glucose production and increased insulin sensitivity leading to low blood sugar levels.

What are the clinical manifestations of diabetic ketoacidosis?

Symptoms include polyuria, polydipsia, nausea, vomiting, abdominal pain, and altered mental status.

What nursing care management strategies are important for diabetic ketoacidosis?

Strategies include fluid replacement, insulin therapy, and monitoring electrolytes.

What characterizes hyperglycemic hyperosmolar state?

It is characterized by severe hyperglycemia, dehydration, and altered consciousness without significant ketoacidosis.

How does acute stress affect diabetes?

Acute stress can increase blood glucose levels due to the release of stress hormones.

What is the relationship between diabetes and vascular disease?

Diabetes is considered a vascular disease due to its impact on blood vessels and increased risk of cardiovascular complications.

What percentage of hospitalized patients have diabetes?

Approximately 20% of all inpatients have diabetes.

What are the risks associated with diabetes during acute illness?

Increased risks include longer hospital stays, higher morbidity and mortality rates.

What is stress-induced hyperglycemia?

It is a common condition after severe trauma and critical illness, leading to elevated blood glucose levels.

What factors contribute to hyperglycemia in acutely ill patients?

Factors include parental nutrition, glucocorticoid use, and the body's stress response.

What are the main types of diabetes?

Type 1 diabetes and Type 2 diabetes.

What is the etiology of Type 1 diabetes?

It is linked to genetic, autoimmune, viral, and environmental factors.

What percentage of diabetes cases are Type 2?

Type 2 diabetes accounts for 90% of diabetes cases.

What are common risk factors for Type 2 diabetes?

Risk factors include obesity, hypertension, genetics, and pre-diabetes.

What is the prevalence of diabetes among Indigenous populations?

Diabetes prevalence is 3-5 times higher than in the general population.

What are classic symptoms of Type 1 diabetes?

Classic symptoms include polydipsia, polyuria, and polyphagia.

What is the impact of obesity on diabetes prevalence?

Obesity rates are increasing, contributing to the rising prevalence of Type 2 diabetes.

What is pre-diabetes?

A condition where plasma glucose levels are higher than normal but not high enough for a diabetes diagnosis.

How does insufficient insulin affect the body?

It leads to increased protein catabolism, decreased glucose uptake, and increased fat catabolism.

What is the effect of elevated glucose on fluid and electrolytes?

It increases osmotic pressure, pulling fluid and electrolytes out of cells, leading to dehydration.

What is the role of insulin in glucose metabolism?

Insulin allows glucose uptake into cells for energy and prevents fat utilization as an energy source.

What are the mortality rates for individuals with diabetes compared to those without?

Individuals with diabetes experience mortality rates at least two times higher than those without.

What is the significance of the neuroendocrine response to stress in diabetes?

It leads to increased cortisol levels, affecting glucose production and clearance, which can worsen hyperglycemia.

What is the fasting blood sugar level that indicates diabetes?

Fasting blood sugar (FBS) ≥ 7.0 mmol/L

What is the Hemoglobin A1C level that indicates diabetes?

Hemoglobin A1C ≥ 6.5%

What is the threshold for a 75 G Oral Glucose Tolerance Test (GTT) to diagnose diabetes?

≥ 11.1 mmol/L (2 hours after ingesting the glucose drink)

What are the signs of hypoglycemia?

Headache, dizziness, slurred speech, drowsiness, numbness, tachycardia, sweating, cold clammy skin, nausea.

What is the priority nursing intervention for a patient with a blood glucose level of 3.0 mmol/L?

Administer glucose (juice or glucose tabs) if the patient is conscious.

What should be given to an unresponsive patient with severe hypoglycemia?

Dextrose 50% in 50 mL IVP.

What is the primary cause of Diabetic Ketoacidosis (DKA)?

Profound deficiency of insulin.

What are the clinical manifestations of DKA?

Dehydration, poor skin turgor, dry mucous membranes, tachycardia, Kussmaul respirations, blood glucose level >17mmol/L, arterial pH < 7.35.

What is the treatment for DKA?

Restore fluid balance, correct electrolytes, and administer IV insulin.

What distinguishes Hyperosmolar Hyperglycemic State (HHS) from DKA?

HHS does not involve ketoacidosis and typically occurs in older adults with type 2 diabetes.

What are the common precipitating factors for HHS?

Inadequate fluid intake, impaired thirst sensation, and functional inability to replace fluids.

What is the blood sugar level indicative of HHS?

Blood sugar levels > 23 mmol/L.

What is the main goal of diabetes management according to the Canadian Diabetic Association?

Prevent/minimize complications and improve patient outcomes by reducing hyperglycemia risk.

What are the macrovascular complications associated with diabetes?

Chronic Kidney Disease (CKD), Myocardial Infarction (MI), Stroke.

What are the microvascular complications of diabetes?

Retinopathy and neuropathy.

What does the acronym ABCDEs stand for in diabetes vascular protection?

A1C, Blood Pressure (BP), Cholesterol, Drugs, Exercise.

What should be monitored frequently to manage diabetes effectively?

A1C levels and blood glucose monitoring (BGM).

What is the recommended blood glucose range to maintain in hospitalized patients?

5.0-8.0 mmol/L.

What are the common causes of hypoglycemia?

Too much medication, exercise, lack of dietary intake, and critical illness.

What is the significance of Kussmaul breathing?

It is a sign of metabolic acidosis, commonly seen in DKA.

What is the initial treatment for a patient in a hypoglycemic crisis?

Check glucose levels and initiate hypoglycemia protocol.

What are the nursing interventions for managing DKA?

Restore fluid balance, correct electrolytes, and administer IV insulin.

What is the expected arterial pH in a patient with DKA?

Arterial pH < 7.35.

What is the role of insulin in the management of DKA?

Insulin is administered until acidosis is corrected.