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Related Concept Videos

Diabetes Insipidus II: Pathophysiology01:22

Diabetes Insipidus II: Pathophysiology

Normally, water balance is maintained through three interconnected mechanisms: the hypothalamic thirst center, the synthesis and release of antidiuretic hormone (ADH, or vasopressin), and the kidneys' responsiveness to this hormone. ADH is synthesized in the hypothalamus, released from the posterior pituitary, and acts on the distal nephron, allowing water reabsorption and concentrated urine production.Diabetes Insipidus and Its TypesIn diabetes insipidus (DI), this regulatory system is...
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...
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
Diabetic Nephropathy01:28

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Chronic Kidney Disease IV: Nursing Management01:18

Chronic Kidney Disease IV: Nursing Management

Nursing management is essential for preventing complications, maintaining stability, and improving patients' quality of life in chronic kidney disease (CKD). By using a structured approach, nurses help slow CKD progression and support effective patient care​.1. Comprehensive patient assessmentEffective management begins with nurses reviewing the patient’s medical history, and identifying key risk factors like diabetes, hypertension, and nephrotoxic drug use. Nurses assess signs of fluid...

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Related Experiment Video

Updated: Jun 26, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Infant Nephrogenic Diabetes Insipidus: Challenges Leading to Delayed Management.

Sandra Stankovic M1,2, Marija Jankovic Ratkovic1,3, Danica Mihajlović3

  • 1Department of Endocrinology, Pediatric Clinic, University Clinical Center, Nis, Serbia, ukctuzla.ba.

Case Reports in Medicine
|June 25, 2026
PubMed
Summary

Congenital nephrogenic diabetes insipidus (NDI) is a rare disorder often misdiagnosed in infants. Early genetic testing and systematic evaluation are crucial for timely diagnosis and management of NDI.

Keywords:
desmopressin partial responsehypernatremic dehydrationnephrogenic diabetes insipidus

Related Experiment Videos

Last Updated: Jun 26, 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:

  • Pediatric Nephrology
  • Rare Genetic Disorders
  • Endocrinology

Background:

  • Nephrogenic diabetes insipidus (NDI) is a rare renal tubular disorder.
  • Congenital NDI, often caused by AVPR2 gene mutations, presents in infancy with challenges in diagnosis.
  • Nonspecific symptoms like failure to thrive and vomiting can delay diagnosis.

Purpose of the Study:

  • To report a case of congenital NDI misdiagnosed initially as central diabetes insipidus (CDI).
  • To highlight diagnostic challenges and emphasize the importance of genetic testing in infants with polyuria.
  • To share clinical experience to improve recognition and management of NDI.

Main Methods:

  • Case report of a 17-month-old male infant with severe hypernatremia and failure to thrive.
  • Clinical evaluation including response to desmopressin and MRI.
  • Genetic testing to confirm AVPR2 mutation.

Main Results:

  • Initial presentation mimicked CDI, leading to diagnostic delay.
  • Persistent polyuria despite desmopressin prompted further investigation.
  • Genetic testing confirmed congenital NDI due to an AVPR2 mutation.

Conclusions:

  • Misinterpretation of desmopressin response and MRI findings can complicate NDI diagnosis.
  • Systematic diagnostic approaches and early genetic testing are vital for infants with polyuria.
  • Effective management of NDI involves thiazide diuretics, NSAIDs, and sodium restriction.