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Related Concept Videos

Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

Management of renal calculi focuses on effective strategies like tailored nutrition and hydration therapy. Adjusting diet and fluid intake reduces stone formation and recurrence, making these interventions simple yet powerful in kidney stone prevention and management.Understanding Kidney StonesKidney stones form when calcium, oxalate, uric acid, and cystine concentrate and crystallize in urine. Factors contributing to their formation include genetic predisposition, certain medical conditions,...

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Related Experiment Video

Updated: Jul 13, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
07:45

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis

Published on: February 9, 2021

Uric acid nephrolithiasis.

Mary Ann Cameron1, Khashayar Sakhaee

  • 1The Charles and Jane Pak Center for Mineral Metabolism and Clinical Research, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8885, USA. maryann.cameron@utsouthwestern.edu

The Urologic Clinics of North America
|August 7, 2007
PubMed
Summary

Uric acid kidney stones often result from acidic urine, not high uric acid levels. Insulin resistance may worsen this by increasing acid production and reducing kidney ammonium excretion, guiding treatment toward alkali therapy.

Related Experiment Videos

Last Updated: Jul 13, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
07:45

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis

Published on: February 9, 2021

Area of Science:

  • Nephrology
  • Urology
  • Metabolic Disorders

Background:

  • Uric acid nephrolithiasis is a complex condition with diverse underlying causes.
  • Advances in understanding renal urate transport have clarified mechanisms of hyperuricosuria.
  • However, acidic urine pH is often the primary defect in uric acid stone formers.

Purpose of the Study:

  • To investigate the primary pathophysiological defects in uric acid stone formation.
  • To explore the role of insulin resistance in the development of acidic urine.
  • To outline current medical management strategies for uric acid nephrolithiasis.

Main Methods:

  • Analysis of recent advances in renal urate transport mechanisms.
  • Evaluation of the contribution of insulin resistance to urine acidification.
  • Review of established medical management strategies including alkali treatment and hyperuricosuria reduction.

Main Results:

  • The primary defect in most uric acid stone formers is excessively acidic urine, not hyperuricosuria.
  • Insulin resistance may promote acidic urine by increasing endogenous acid production and reducing renal ammonium excretion.
  • Current management focuses on alkali treatment or reducing uric acid levels.

Conclusions:

  • Acidic urine pH is a critical factor in uric acid nephrolithiasis.
  • Insulin resistance is a potential contributor to urine acidification.
  • Medical management should address both urine pH and uric acid levels.