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Hypoglycemia

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...

Hypoglycemia and Glucagon

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...

Hyperglycemia

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...

Hyperosmolar Hyperglycemic State

Hyperosmolar Hyperglycemic State

Hyperosmolar Hyperglycemic State, or HHS, is a serious and life-threatening complication of type 2 diabetes mellitus. It is characterized by three main features: severe hyperglycemia, profound dehydration, and elevated serum osmolality, all occurring without significant ketoacidosis.HHS typically develops in older adults or individuals with limited access to fluids. This may result from illness, cognitive impairment, or medications such as diuretics or corticosteroids. These factors reduce...

Type I Diabetes III: Clinical Manifestations

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...

Oral Hypoglycemic Agents: Glinides

Oral Hypoglycemic Agents: Glinides

Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively manages...

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Updated: Jul 3, 2026

Improving IV Insulin Administration in a Community Hospital

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

[Hypoglycaemia].

¹I. interná klinika Jesseniovej lekárskej fakulty UK a MFN Martin, Slovenská republika. mokanma@post.sk

Vnitrni Lekarstvi

|July 18, 2008

Summary

This summary is machine-generated.

Hypoglycaemia, a frequent complication of diabetes treatment, is defined by symptoms, low glucose, and symptom relief with glucose. This overview details its definition, causes, and modern management strategies for diabetic patients.

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Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

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Improving IV Insulin Administration in a Community Hospital

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Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

Published on: January 26, 2024

Area of Science:

Endocrinology and Metabolism
Clinical Medicine

Context:

Hypoglycaemia is a critical and common complication in diabetes mellitus management.
Recurrent hypoglycaemic episodes pose significant risks to patient safety and quality of life.

Purpose:

To provide a comprehensive overview of hypoglycaemia in diabetes mellitus.
To detail the definition, classification, and provoking factors of hypoglycaemia.
To discuss modern diagnostic and therapeutic approaches for hypoglycaemic states.

Summary:

Defines hypoglycaemia using Whipple's triad: typical symptoms, low plasma glucose, and symptom resolution post-glucose administration.
Classifies hypoglycaemia by causes, incidence, and precipitating factors in type 1 and type 2 diabetes.
Explores optimal glycaemia thresholds and current treatment strategies for managing hypoglycaemia.

Impact:

Enhances understanding of hypoglycaemia for clinicians and researchers.
Aims to improve patient outcomes by optimizing the diagnosis and treatment of hypoglycaemia.
Contributes to safer and more effective diabetes mellitus management.