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Related Concept Videos

Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
Hyperglycemia01:29

Hyperglycemia

Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...
Hypoglycemia01:26

Hypoglycemia

Hypoglycemia is a blood glucose level below 70 mg/dL. It commonly occurs in individuals using insulin or insulin-secreting drugs, but may also arise in non-diabetic conditions. People with type 1 diabetes are at the highest risk because they depend on exogenous insulin. People with type 2 diabetes are also at risk, especially when treated with insulin or medications such as sulfonylureas, which increase insulin release regardless of blood glucose levels. It develops when insulin levels exceed...
Type I Diabetes III: Clinical Manifestations01:19

Type I Diabetes III: Clinical Manifestations

Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...
Diabetic Ketoacidosis ll: Pathophysiology01:22

Diabetic Ketoacidosis ll: Pathophysiology

Diabetic ketoacidosis (DKA) is a metabolic emergency characterized by hyperglycemia, ketonemia, and metabolic acidosis. It results from severe insulin deficiency and an excess of counterregulatory hormones, leading to uncontrolled lipolysis, ketogenesis, and widespread electrolyte and fluid disturbances.Pathophysiology The central event in DKA is a profound loss of insulin action. Without insulin, glucose uptake in insulin-dependent tissues is impaired, while hepatic glucose production...
Diabetic Ketoacidosis l: Introduction01:25

Diabetic Ketoacidosis l: Introduction

DefinitionDiabetic ketoacidosis (DKA) is an acute, life-threatening complication of diabetes mellitus, characterized by a triad of hyperglycemia (blood glucose >250 mg/dL), ketonemia or ketonuria, and metabolic acidosis (arterial pH <7.30 and serum bicarbonate <18 mEq/L). It results from insulin deficiency combined with elevated levels of counterregulatory hormones—glucagon, catecholamines, cortisol, and growth hormone—leading to increased lipolysis, hepatic ketone production, and...

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Related Experiment Video

Updated: Jul 10, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

[Glycemic emergencies].

Jean-Jacques Altman1

  • 1Service de diabétologie, Hôpital Européen Georges-Pompidou, Paris. jean-jacques.altman@egp.aphp.fr

La Revue Du Praticien
|November 21, 2007
PubMed
Summary

Educational programs significantly reduce emergency diabetes complications like hyperglycemia and hypoglycemia. Patients with type 1 and type 2 diabetes now manage conditions better, leading to fewer hospitalizations.

Area of Science:

  • Endocrinology
  • Diabetology
  • Public Health

Context:

  • Decreasing incidence of emergency hyperglycemic and hypoglycemic states in industrialized nations for both type 1 and type 2 diabetes patients.
  • Hospital admissions for diabetes emergencies are becoming rare due to improved patient management.
  • Educational initiatives form the foundation of this significant advancement in diabetes care.

Purpose:

  • To highlight the impact of educational programs on reducing emergency diabetes-related conditions.
  • To underscore the improved self-management capabilities of diabetic patients.
  • To discuss the potential for achieving normoglycemia with reduced risk of acute complications.

Summary:

  • Type 1 diabetic patients can now self-treat early ketonuria, preventing ketoacidosis.

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Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

Published on: January 26, 2024

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Last Updated: Jul 10, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice
07:35

Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

Published on: January 26, 2024

  • Type 2 diabetic patients and their support systems are educated on diagnosing, treating, and preventing hypoglycemic attacks.
  • Improved understanding reduces the psycho-social impact of hypoglycemia, contrasting with the dangers of chronic hyperglycemia.

    • Impact:

    • Enhanced patient autonomy and self-care in managing diabetes.
    • Reduced burden on healthcare systems due to fewer emergency admissions.
    • Optimistic outlook for achieving therapeutic goals closer to normoglycemia with minimized acute risks.