What information is NOT required in unit dosage measurement records?

In unit dosage measurement records, the essential information typically includes details necessary for tracking and ensuring the safety and accuracy of radiopharmaceutical administration. Among these, the name of the radiopharmaceutical is critical as it identifies the substance used for the procedure. The date and time of the dosage measurement are also vital for record-keeping, especially in relation to administration protocols and patient care timelines. The patient's name is essential for ensuring that the correct dosage is administered to the correct individual, which is a fundamental safety measure in all medical practices.

While knowing the make and model of the dose calibrator could be useful for quality assurance and maintenance reasons, it is not directly required for the unit dosage measurement record itself. This information does not affect the dosage and administration process for the radiopharmaceutical in the same way that the other pieces of information do. Therefore, when considering which information is not essential in the context of unit dosage measurement records, the dose calibrator's make and model stands out as the unnecessary detail in this specific documentation format.