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Related Concept Videos

Diabetes Insipidus I: Introduction01:29

Diabetes Insipidus I: Introduction

Definition Diabetes insipidus is a disorder marked by the production of large amounts of dilute urine because of impaired vasopressin production, release, or kidney response. The lack of effective vasopressin action limits water reabsorption in the renal collecting ducts, which leads to excessive urinary water loss and intense thirst.Clinical PresentationIndividuals with diabetes insipidus report persistent thirst and very high urine output. In severe cases, fluid intake can reach up to 20...
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Dehydration
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Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
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Diabetes Insipidus II: Pathophysiology

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Hypernatremic disorders in the intensive care unit.

Surender Kumar Arora1

  • 1Department of Medicine, Endocrinology Division, Overton Brooks VA Medical Center, Shreveport, LA 71101, USA. Surender.Arora2@va.gov

Journal of Intensive Care Medicine
|May 18, 2011
PubMed
Summary
This summary is machine-generated.

Critically ill patients in the intensive care unit (ICU) are at high risk for hypernatremia, a condition of elevated plasma sodium. Prompt diagnosis and management, including free water replacement, are crucial for preventing severe complications.

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Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Internal Medicine

Background:

  • Hypernatremia (plasma sodium >145 mEq/L) is common in critically ill patients.
  • It signifies a water deficit relative to sodium, leading to hyperosmolality.
  • Impaired thirst, water access, or excessive fluid losses contribute to its development.

Purpose of the Study:

  • To review the causes, consequences, and management of hypernatremia in the ICU.
  • To emphasize the importance of assessing and correcting free water deficits.
  • To guide fluid replacement strategies in high-risk patient populations.

Main Methods:

  • Review of existing literature on hypernatremia in critically ill patients.
  • Discussion of diagnostic criteria and clinical manifestations.
  • Analysis of therapeutic approaches, including free water replacement.

Main Results:

  • Critically ill patients face unique risks for hypernatremia due to sedation, intubation, and fluid management.
  • Consequences range from neurological impairment to vascular complications and death.
  • Management involves correcting free water deficits and addressing underlying causes.

Conclusions:

  • Hypernatremia requires vigilant monitoring and management in the ICU.
  • Judicious free water replacement is the cornerstone of therapy.
  • Routine assessment of fluid needs and timely intervention are essential for at-risk patients.