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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...
Physiology of the Genitourinary System III: Urine Concentration and Dilution01:20

Physiology of the Genitourinary System III: Urine Concentration and Dilution

The kidneys concentrate or dilute urine to maintain water and electrolyte balance. Nephrons, particularly the loop of Henle, play a crucial role in this process through the countercurrent multiplication system. This system establishes a high osmolarity in the renal medulla, which is essential for water reabsorption. In the loop of Henle’s descending limb, water is reabsorbed into the surrounding medulla due to its permeability to water. In contrast, the ascending limb actively transports...
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 IV: Nursing Management01:17

Urinary Tract Infection IV: Nursing Management

In managing urinary tract infections (UTIs) in nursing, a comprehensive assessment is essential. Begin by gathering subjective data, such as the patient’s complaints of dysuria (painful urination), urinary frequency, urgency, suprapubic pain, and any lower abdominal discomfort. This information can be complemented by questions regarding previous UTIs, sexual activity, and personal hygiene practices, which can provide insight into risk factors. Objective assessment should focus on signs like...
Urine Studies II: Urine Culture and Sensitivity Test01:26

Urine Studies II: Urine Culture and Sensitivity Test

A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...

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Related Experiment Video

Updated: Jun 6, 2026

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
10:38

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies

Published on: January 16, 2019

Urine output on an intensive care unit: case-control study.

Anthony W Solomon1, Christopher J Kirwan, Neal D E Alexander

  • 1General Intensive Care Unit, St George's Hospital, London, UK. anthony.solomon@lshtm.ac.uk

BMJ (Clinical Research Ed.)
|December 16, 2010
PubMed
Summary

Junior doctors in intensive care units were more likely to experience oliguria, a sign of kidney strain, than their patients. This highlights challenges in managing their own fluid balance and suggests potential adjustments to acute kidney injury criteria for medical staff.

Related Experiment Videos

Last Updated: Jun 6, 2026

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
10:38

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies

Published on: January 16, 2019

Area of Science:

  • Nephrology and Critical Care Medicine
  • Physiology and Fluid Balance Management

Background:

  • Intensive care unit (ICU) environments present unique physiological challenges.
  • Monitoring patient urine output is crucial for assessing kidney function and fluid status.
  • The physiological strain on healthcare providers in high-stress environments is not well-characterized.

Purpose of the Study:

  • To compare urine output between junior doctors and their patients in an ICU setting.
  • To assess the incidence of oliguria (low urine output) in junior doctors compared to ICU patients.
  • To investigate potential implications for acute kidney injury (AKI) assessment criteria.

Main Methods:

  • A case-control study was conducted in a general ICU.
  • Junior doctors (cases) and their corresponding ICU patients (controls) were recruited.
  • Urine output was measured and compared, with oliguria defined as <0.5 ml/kg/hour over six hours.

Main Results:

  • Junior doctors were significantly more likely to be oliguric than their patients (OR 1.99).
  • Oliguria was observed in 22% of doctor shifts, with 1% meeting criteria for 'injury'.
  • Higher urine output in doctors correlated with a lower likelihood of being classified as oliguric.

Conclusions:

  • Managing personal fluid balance is more challenging for junior doctors than for their patients.
  • The findings suggest a need for increased water intake among medical staff.
  • Current acute kidney injury criteria may require modification for assessing healthcare providers.