Devices and methods for diagnosing and administering drug overdose countermeasure. In some embodiments, a device includes a analyzer with a decision support application electronically connected to a drug of abuse detection device and a non-invasive blood gas device that support specific identification of drugs of abuse within a patient's system. In some embodiments, a method includes inputting patient demographics into the analyzer, inputting a patient's saliva, blood, and/or urine sample into the drug of abuse detection device, operatively affixing a non-invasive blood gas device to a patient, and administering a proper countermeasure dosage analyzer to the patient experiencing drug overdose.

The current application relates to personalised nutrition methods, particularly to methods of determining whether a human subject would benefit from taking a urolithin supplement and methods for determining the treatment dose of a urolithin supplement for a human subject. Particularly methods comprising determining the level of urolithin or a urolithin conjugate in a biological fluid, such as a dried whole blood spot sample, a dried plasma spot, a m spot sample or a urine sample The current application also relates to systems for presenting whether a human subject would benefit from taking a urolithin supplement and for presenting the treatment dose of a urolithin supplement for a human subject. The current application also relates to computer implementation of methods of the invention.