Related Experiment Video
Updated: Jul 9, 2026

Use of a Central Venous Line for Fluids, Drugs and Nutrient Administration in a Mouse Model of Critical Illness
Published on: May 2, 2017
Adrenal insufficiency in critical illness.
Mark Stuart Cooper1, Paul Michael Stewart
1Department of Endocrinology, Division of Medical Sciences, Institute of Biomedical Research, The University of Birmingham, United Kingdom. m.s.cooper@bham.ac.uk
Adrenal insufficiency in critical care lacks consensus on diagnosis and treatment. This review clarifies glucocorticoid changes and guides corticosteroid replacement for critically ill patients.
Area of Science:
- Critical care medicine
- Endocrinology
Background:
- Adrenal insufficiency and corticosteroid treatment in critically ill patients remain controversial.
- Lack of consensus exists regarding diagnosis, testing, interpretation, and treatment protocols.
Purpose of the Study:
- To review pathophysiological changes in glucocorticoid secretion, metabolism, and action during critical illness.
- To provide guidance on adrenal function testing and corticosteroid replacement regimens.
Main Methods:
- Literature review of current published data on adrenal insufficiency in critical care.
- Analysis of pathophysiological changes in glucocorticoid dynamics.
- Evaluation of diagnostic testing and treatment strategies.
Main Results:
- Critical illness significantly alters glucocorticoid secretion, metabolism, and action.
- Interpreting glucocorticoid replacement effects is complex due to diverse tissue actions.
- Distinguishing between adrenal and central causes of insufficiency is crucial for treatment.
Conclusions:
- Adrenal insufficiency management in critical care requires careful consideration of complex pathophysiological changes.
- Evidence-based guidance on testing and corticosteroid replacement is needed.
- Tailored investigation and treatment based on the origin of insufficiency are essential.
Related Concept Videos
Adrenal Gland Disorders
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Cushing Syndrome II: Pathophysiology
Cushing Syndrome I: Introduction
Acute Kidney Injury III: Clinical Manifestations
Anatomy of the Adrenal Glands
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
Adrenergic Agonists: Therapeutic Uses
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and anaphylaxis:...
