Devices, patch sensors, and methods for detecting a ketone body are disclosed. An exemplary device includes a collection apparatus for collecting a sample amount of interstitial fluid and a ketone body indicator having an initial negative state and having a positive state when at least a threshold value of the ketone body is collected in the sample amount.

An analytical toilet comprising a bowl for receiving excreta from a user, a urine collection chamber in fluid communication with the bowl, a sensor for detecting properties of the urine after at least partial settling of the urine, a valve adapted to release the captured urine from the urine collection chamber, and a source of flush water to clean the urine collection chamber.

An analytical toilet comprising a bowl for receiving excreta from a user, a urine collection chamber for receiving urine from the bowl, a sensor for detecting properties of the urine, a valve adapted to release the captured urine from the urine collection chamber, and a source of flush water to clean the urine collection chamber.

An analytical toilet comprising a bowl for receiving excreta from a user, a urine collection chamber for receiving urine from the bowl, a sensor for detecting properties of the urine, a valve adapted to release the captured urine from the urine collection chamber, and a source of flush water to clean the urine collection chamber.

A testing pad comprising a water-resistant base layer, a water-transmissive top layer coupled with said base layer, an hydrophilic intermediate layer contained between said top layer and said base layer, and a color-changing chemical reagent contained between said top layer and said base layer adapted an configured to allow an animal or person to urinate on the testing pad and the chemical reagent to present testing results related to the presence, absence and/or concentration of substances within the urine.

In measurement of ketone bodies in urine, false-positives due to a drug having a thiol group are inhibited. False-positives due to a drug having a thiol group are inhibited by adding an oxidizing agent to a test piece for detection of ketone bodies in urine.

In measurement of ketone bodies in urine, false-positives due to a drug having a thiol group are inhibited. False-positives due to a drug having a thiol group are inhibited by adding an oxidizing agent to a test piece for detection of ketone bodies in urine.

A device and system for detecting aldehydes or ketones and, more particularly, a device and system, for detecting aldehydes or ketones, utilized in a rotating platform are provided.

A ketone measurement and analysis system provides various features for enabling health program participants to interpret their ketone measurements, such as breath acetone measurements. One such feature breaks down ketone measurements into causal components. For example, the system may generate and display an estimate of how much of a participant's ketone measurement is attributable to stored fat metabolism versus consumption of a confounding substance such as dietary fat and/or exogenous ketones. The system may also estimate the contributions of specific confounding substances, and/or the contributions of other factors or events (such as exercise, interrupted sleep, a missed medication, etc.) that affect ketone levels. Another feature involves the generation and display of target ketone levels that are personalized for the participants. The system may generate the measurement breakdowns and target ketone levels by applying data mining algorithms to aggregated data of many program participants.

A ketone measurement and analysis system provides various features for enabling health program participants to interpret their ketone measurements, such as breath acetone measurements. One such feature breaks down ketone measurements into causal components. For example, the system may generate and display an estimate of how much of a participant's ketone measurement is attributable to stored fat metabolism versus consumption of a confounding substance such as dietary fat and/or exogenous ketones. The system may also estimate the contributions of specific confounding substances, and/or the contributions of other factors or events (such as exercise, interrupted sleep, a missed medication, etc.) that affect ketone levels. Another feature involves the generation and display of target ketone levels that are personalized for the participants. The system may generate the measurement breakdowns and target ketone levels by applying data mining algorithms to aggregated data of many program participants.