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Related Concept Videos

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 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 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 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,...
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...

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Related Experiment Video

Updated: Jun 5, 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

Urinary pH and stone formation.

Carsten A Wagner1, Nilufar Mohebbi

  • 1Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), Zurich,University of Zurich, Switzerland. Wagnerca@access.uzh.ch

Journal of Nephrology
|December 21, 2010
PubMed
Summary
This summary is machine-generated.

Urinary pH significantly impacts kidney stone formation. Acidic urine promotes uric acid stones, while alkaline urine favors calcium-phosphate stones, highlighting pH

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A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
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Last Updated: Jun 5, 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

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
11:30

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

Area of Science:

  • Nephrology
  • Urology
  • Biochemistry

Background:

  • Urinary pH is a critical determinant in the formation of various kidney stones.
  • Alkaline urine pH promotes calcium-phosphate stones, whereas acidic urine pH favors uric acid or cystine stones.
  • pH influences the activity of transporters for calcium, citrate, and phosphate, as well as channels like TRPV5.

Purpose of the Study:

  • To review the kidney's capacity to regulate pH.
  • To discuss the impact of pH regulation on stone-forming and stone-preventing solute excretion.

Main Methods:

  • Literature review of studies on urinary pH, kidney stone formation, and solute transport.
  • Analysis of mechanisms linking urinary acidification defects to kidney stone disease.
  • Examination of protective mechanisms against stone formation in conditions like hypercalciuria.

Main Results:

  • Defects in urinary acidification contribute to kidney stone disease.
  • Metabolic syndrome and insulin resistance can lead to more acidic urine and uric acid stones.
  • Protective mechanisms, such as stimulated urinary acidification in hypercalciuria, can reduce stone risk.

Conclusions:

  • Kidney pH regulation is crucial for preventing kidney stone formation.
  • Understanding pH-dependent solute handling is key to managing kidney stone disease.
  • Targeting pH regulation pathways may offer therapeutic strategies for stone prevention.