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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
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Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

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Related Experiment Video

Updated: Jul 19, 2026

Endotoxin Activity Assay for the Detection of Whole Blood Endotoxemia in Critically Ill Patients
06:28

Endotoxin Activity Assay for the Detection of Whole Blood Endotoxemia in Critically Ill Patients

Published on: June 24, 2019

Adrenal function testing in patients with septic shock.

Diamantino Ribeiro Salgado1, Juan Carlos Rosso Verdeal, José Rodolfo Rocco

  • 1Intensive Care Unit, Barra Dor Hospital, Avenida Ayrton Senna 2541, Barra da Tijuca, Rio de Janeiro CEP 22775-001, Brazil. d.salgado@globo.com

Critical Care (London, England)
|October 26, 2006
PubMed
Summary

Adrenal failure (AF) in septic shock patients is best diagnosed using the Deltamax249 test, as it is unaffected by serum albumin levels. This method provides a reliable indicator for AF when free cortisol measurements are unavailable.

Related Experiment Videos

Last Updated: Jul 19, 2026

Endotoxin Activity Assay for the Detection of Whole Blood Endotoxemia in Critically Ill Patients
06:28

Endotoxin Activity Assay for the Detection of Whole Blood Endotoxemia in Critically Ill Patients

Published on: June 24, 2019

Area of Science:

  • Critical Care Medicine
  • Endocrinology
  • Septic Shock Research

Background:

  • Adrenal failure (AF) is linked to higher mortality in septic patients.
  • Current diagnostic criteria for AF lack consensus.
  • Evaluating AF diagnosis in septic shock is crucial.

Purpose of the Study:

  • To compare AF diagnosis using various baseline total cortisol cutoffs and Deltamax values post-corticotropin stimulation.
  • To analyze the impact of serum albumin on AF identification.
  • To correlate laboratorial AF with norepinephrine removal in septic shock.

Main Methods:

  • Prospective study of 102 septic shock patients without prior steroid use.
  • Sequential 1 microg and 249 microg corticotropin tests with 60-minute intervals.
  • Defined AF as Deltamax249 ≤ 9 microg/dl or baseline cortisol ≤ 10 microg/dl; compared other cutoffs and albumin influence.

Main Results:

  • AF diagnosed in 22.5% of patients.
  • Serum albumin levels impacted baseline total cortisol but not Deltamax249 results.
  • Baseline cortisol ≤ 23.6 microg/dl accurately predicted norepinephrine removal.

Conclusions:

  • Deltamax249 ≤ 9 microg/dl is a reliable AF diagnostic marker, unaffected by serum albumin.
  • This high-dose corticotropin test is recommended when free cortisol measurement is not feasible.
  • Baseline cortisol ≤ 23.6 microg/dl is optimal for predicting norepinephrine removal in untreated patients.