Concentration, H2O intake, Urine, Dehydration

A
Andrew Schwaderer, MD

Primary Investigator

Enrolling By Invitation
12 years - 18 years
All
Phase N/A
20 participants needed
1 Location

Brief description of study

What is the purpose of this study?
The purpose of this study is to determine if urine color can be used to determine urine concentration and hydration status. We will test methodology that can be easily performed by families to monitor hydration status which is an important health consideration. Our primary objective is to determine how accurately urine color measures hydration compared to urine osmolality. The hypothesis is that urine color will accurately measure hydration status in children.The purpose of this study is to find out if urine color is an accurate indicator of hydration in children.
 
THIS STUDY IS ENROLLING BY INVITATION ONLY - Potential research participants will initially be identified from nephrology and urology patient lists and will be recruited during clinic appointment by study team about study participation.

Detailed description of study

What will happen during the study?
Researchers will use leftover urine from any sample provided to participants' doctor, or request an additional sample if no leftover is available. Participants will fill out 2 forms estimating urine color and level of hydration.
 
Study involves a one time visit:
1) consent/assent obtained 
2)patient will provide a urine sample (clean catch, random) or left over urine from a sample already provided will be used. 
3) the patient will complete a Visual Analog Scale for thirst 
4)the patient will circle the color on a Urine Armstrong Scale that most closely matches the color of their urine Study Staff 

Eligibility of study

You may be eligible for this study if you meet the following criteria:

  • Conditions: All, Riley
  • Age: 12 years - 18 years
  • Gender: All

Inclusion criteria:
1) Child age 12-18 2) able to provide a clean catch urine sample Controls Children 12-18, able to provide clean catch urine sample, history of no kidney stones

Exclusion criteria:
1) Unable to complete visual analog or armstrong color scale 2) visible blood in the urine 3) known CKD, stage 2 or greater 4) medications or foods that include a diuretic or are known to change urine color (such as nitrofurantoin) 5) a known urinary concentrating defect Controls 1) Unable to complete visual analog or armstrong color scale 2) visible blood in the urine 3) known CKD, stage 2 or greater 4) medications or foods that include a diuretic or are known to change urine color (such as nitrofurantoin) 5) a known urinary concentrating defect 6) History of Kidney stones
Children between 12 and 18 years of age able to provide a clean catch urine sample.
Individuals with known CKD or UTI, or taking medication known to affect the color of urine will not be eligible.

Updated on 26 Feb 2025. Study ID: PNEPH-IIR-CHUD, 2003836263
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