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Urine Studies I: Urinalysis

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...

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Related Experiment Video

Updated: Jul 1, 2026

CRISPR-Cas-mediated Multianalyte Synthetic Urine Biomarker Test for Portable Diagnostics

CRISPR-Cas-mediated Multianalyte Synthetic Urine Biomarker Test for Portable Diagnostics

Published on: December 8, 2023

A field deployable high-resolution urine gamma analyzer.

Gary H Kramer¹, Barry M Hauck, Kevin Capello

¹Human Monitoring Laboratory, Radiation Surveillance and Heath Assessment Division, Radiation Protection Bureau, 775 Brookfield Road, PL6302D1, Ottawa, Ontario, K1A 1C1, Canada. gary_h_Kramer@hc-sc.go.ca

|September 12, 2008

Summary

This summary is machine-generated.

Portable gamma spectrometers offer field deployable urinalysis for detecting radioactive isotopes like cesium and cobalt. While effective for activation and fission products, actinides detection remains challenging with this method.

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Published on: January 30, 2020

Area of Science:

Nuclear Science and Engineering
Environmental Monitoring
Radiological Protection

Background:

Portable whole body counters have been adapted for urinalysis applications.
Accurate detection of radioactive isotopes in biological samples is crucial for health and safety.

Purpose of the Study:

To evaluate the efficacy of portable gamma spectrometers for field-based urinalysis.
To determine the minimum detectable activities (MDAs) and associated committed effective doses for specific radionuclides.

Main Methods:

A 120-mL urine sample was measured in a polypropylene container for 5 minutes using a portable gamma spectrometer.
Minimum detectable activities (MDAs) were calculated for Americium-241 (241Am), Cobalt-57 (57Co), Cesium-137 (137Cs), and Cobalt-60 (60Co).
Committed effective doses were estimated based on assumed intake and measurement parameters.

Main Results:

MDAs were 113 Bq/sample for 241Am and 27-29 Bq/sample for 57Co, 137Cs, and 60Co.
Estimated committed effective doses ranged from 76 μSv (57Co) to 1.5 mSv (60Co), with 241Am at 517 Sv and 137Cs at 402 μSv.
The instrument demonstrated capability for detecting activation and fission products but struggled with actinides.

Conclusions:

Portable gamma spectrometers are viable for field deployable urinalysis of activation and fission products.
Detection of actinides and low energy photon emitters remains a limitation for this technology in urinalysis.
Further development is needed to enhance the detection capabilities for a broader range of radioactive isotopes.