Monitoring dispensation of a substance

A system comprising:

• a processor;
• and
• a memory in communication with the processor, the memory containing program instructions that, when executed by the processor, are configured to cause the processor to perform a method, the method comprising:
• generating a reference dispensation value corresponding to a weighed quantity of a substance manually dispensed from a receptacle, comprising:
• obtaining a first weight measurement of the receptacle indicating a weight prior to a dispensation of the substance from the receptacle,
• obtaining a second weight measurement of the receptacle indicating a weight of the substance in the receptacle after a portion of the substance has been dispensed from the receptacle after the first weight measurement, and
• calculating a first difference between the first weight measurement and the second weight measurement, resulting in the reference dispensation value indicating the weight of the substance dispensed from the receptacle between the first weight measurement and the second weight measurement;
• determining that a dispensation monitor coupled to the receptacle requires calibration based on a determination that a measured dispensation value indicates that the dispensation monitor is insufficiently accurate, the dispensation monitor being insufficiently accurate based on a second difference between the reference dispensation value and the measured dispensation value exceeding a threshold quantity, the determining that the dispensation monitor requires calibration comprising:
• obtaining dispensation data from a flow sensor of the dispensation monitor, the dispensation data including the measured dispensation value, wherein the measured dispensation value corresponds to a predetermined quantity of the substance that has been dispensed from the receptacle that is specified in a medical procedure for treatment of a patient, the predetermined quantity of the substance passing through the dispensation monitor being calculated from known relationships between density, mass, volume, flow rates, and/or time intervals of flow obtained from the dispensation monitor,
• calculating the second difference between the reference dispensation value and the measured dispensation value, wherein the second difference indicates a difference in quantity of the substance dispensed from the receptacle, and
• determining that the second difference exceeds the threshold quantity of the substance indicating that the calibration is required and that the dispensation monitor is insufficiently accurate;
• and
• adjusting the dispensation monitor in response to determining that the second difference exceeds the threshold quantity.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a processor to cause the processor to perform a method, the method comprising:

• generating a reference dispensation value corresponding to a weighed quantity of a substance that is manually dispensed from a receptacle, comprising:
• obtaining a first weight measurement of the receptacle indicating a weight prior to a dispensation of the substance from the receptacle,
• obtaining a second weight measurement of the receptacle indicating a weight of the substance in the receptacle after a portion of the substance has been dispensed from the receptacle after the first weight measurement, and
• calculating a first difference between the first weight measurement and the second weight measurement, resulting in the reference dispensation value indicating the weight of the substance dispensed from the receptacle between the first weight measurement and the second weight measurement;
• determining that a dispensation monitor coupled to the receptacle requires calibration based on a determination that a measured dispensation value indicates that the dispensation monitor is insufficiently accurate, the dispensation monitor being insufficiently accurate based on a second difference between the reference dispensation value and the measured dispensation value exceeding a threshold quantity, the determining that the dispensation monitor requires calibration comprising:
• obtaining dispensation data from the dispensation monitor, the dispensation data including the measured dispensation value, wherein the measured dispensation value corresponds to a predetermined quantity of the substance that has been dispensed from the receptacle that is specified in a medical procedure for treatment of a patient, the predetermined quantity of the substance passing through the dispensation monitor being calculated from known relationships between density, mass, volume, flow rates, and/or time intervals of flow obtained from the dispensation monitor,
• wherein the dispensation data includes the flow rates, quantities of the substance dispensed from the receptacle, and/or times for when the substance was dispensed,
• calculating the second difference between the reference dispensation value and the measured dispensation value, wherein the second difference indicates a difference in quantity of the substance dispensed from the receptacle, and
• determining that the second difference exceeds the threshold quantity of the substance indicating that the calibration is required and that the dispensation monitor is insufficiently accurate;
• and
• adjusting the dispensation monitor in response to determining that the second difference exceeds the threshold quantity.