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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...
Diabetes: Symptoms, Diagnosis, and Complications01:15

Diabetes: Symptoms, Diagnosis, and Complications

For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is based on...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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...
Diabetes: Management and Pharmacotherapy01:15

Diabetes: Management and Pharmacotherapy

The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...

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Related Experiment Video

Updated: May 19, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Elderly patients may benefit from tight glucose control.

Theresa L Chin1, Angela Sauaia, Ernest E Moore

  • 1University of Colorado, Denver, CO, USA.

Surgery
|September 4, 2012
PubMed
Summary

Controlling blood glucose in critically injured patients is crucial. Older patients may benefit more from tight glucose control, but further research is needed for this population.

Related Experiment Videos

Last Updated: May 19, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Area of Science:

  • Critical Care Medicine
  • Trauma Surgery
  • Endocrinology

Background:

  • Minimizing hyperglycemia in critically injured patients improves outcomes.
  • Debate exists on optimal postinjury glucose control: conventional (≤180 mg/dL) vs. tight (81-108 mg/dL).
  • This study examines glucose levels and adverse outcomes in trauma patients at risk for multiple organ failure.

Purpose of the Study:

  • To investigate the association between glucose control levels and adverse outcomes in acutely injured patients.
  • To determine if age modifies the relationship between glucose control and outcomes.
  • To inform optimal glucose management strategies in trauma care.

Main Methods:

  • Analysis of a 17-year prospective database (1992-2008) of trauma patients (Injury Severity Score >15, survived >48 hours).
  • Multiple logistic regression used to assess glucose control's independent association with death, ventilator-free days, ICU-free days, and infections.
  • Adjusted for Injury Severity Score, age, and initial red blood cell transfusion.

Main Results:

  • 2,231 eligible patients; 6.9% mortality.
  • Most patients (77%) had conventional glucose control; only 10% achieved tight control.
  • Nonsurvivors had higher insulin doses and insulin-to-glucose ratios (P=.025).
  • Mean glucose remained significantly associated with adverse outcomes after adjustment.
  • Age significantly modified these associations, with older patients benefiting more from tight control.

Conclusions:

  • Age is an effect modifier in the glucose level-adverse outcome relationship for trauma patients.
  • Older trauma patients may benefit more from tight glucose control.
  • Further research with larger elderly trauma patient cohorts is necessary to define ideal glucose control targets.