Related Experiment Videos

[Relationships among urine pH, serum uric acid and pyuria in hospitalized elderly patients]

Naoki Mantani1, Ayami Hoshino, Katsuhiko Ito

  • 1Department of Integrated Japanese Oriental Medicine, Faculty of Medicine, Gunma University School of Medicine.

Insights

Geriatric patients with lower serum uric acid and higher urine pH may have a higher risk of urinary tract infections (UTI). Further research is needed to confirm these findings in larger populations.

Area of Science:

  • Geriatric Medicine
  • Nephrology
  • Infectious Diseases

Context:

  • Urinary tract infections (UTIs) are common in geriatric patients.
  • Identifying risk factors for UTIs in this population is crucial for effective prevention and treatment.

Purpose:

  • To investigate the association between serum uric acid, serum creatinine, urine pH, and the presence of pyuria in geriatric patients.
  • To identify potential biomarkers for UTI risk in the elderly.

Summary:

  • Serum uric acid levels were higher with lower urine pH in pyuria-negative patients compared to pyuria-positive patients.
  • Serum creatinine levels were also relatively higher in pyuria-negative patients.
  • Even after adjusting for serum creatinine, serum uric acid remained significantly higher in pyuria-negative males, suggesting a potential role in UTI risk.

Impact:

  • The study proposes a hypothesis regarding the background factors of UTIs in geriatric patients.
  • Highlights the need for further investigation into the relationships between serum uric acid, serum creatinine, urine pH, and pyuria in larger cohorts and experimental settings.

Related Concept Videos

Urine Studies I: Urinalysis01:29

Urine Studies I: Urinalysis

Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care01:30

Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care

A healthcare provider can diagnose a urinary tract infection (UTI) through several methods:Medical History and Symptoms: The provider will take a detailed medical history and ask about symptoms such as frequent urination, burning sensation during urination, and lower abdominal pain.Urinalysis: A clean-catch urine sample is collected in a sterile container and tested for the presence of bacteria, white blood cells (leukocytes), nitrites, blood, and protein. The presence of leukocytes and...
Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
Physiology of Urine Formation01:24

Physiology of Urine Formation

Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...