A review of portable quantitative and semi-quantitative devices for measurement of vitamin A in biological samples.

ABSTRACT:

Background

We catalog and summarize evidence of the analytical performance of portable quantitative and semi-quantitative devices for the assessment of vitamin A status and vitamin A deficiency (VAD) in various biological samples-including whole blood, plasma, serum, and milk-in addition to VAD determination by functional indicators such as pupillary response.

Methods

We searched the literature for published research articles, patents, and information from manufacturers of mobile devices, particularly those appropriate for low-resource settings. The included devices were required to be portable (lightweight and ideally not needing a power outlet) and to measure vitamin A as well as define VAD. Eligible studies compared a portable device to a reference standard of high-perfor

SUBMITTER: Huey SL 

PROVIDER: S-EPMC9407042 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature