SPL UCUM Terminology HL7 FHIR v5.0.0 R5 Unit of Measure Terminology Potency Unit FDA Structured Product Labeling Terminology Clinical Data Interchange Standards Consortium Terminology CDISC SDTM Terminology Plaque Forming Unit HL7 Quantitative Concept C67264 ICH PFU Potency (C-DRG-00501) A unit of measurement of plaque forming cells or microorganisms. Plaque Forming Unit FDA PLAQUE-FORMING UNITS UCUM C1882406 A measure of viable infectious entities (e.g. viral particles or group of particles) in the specimen or product defined as the smallest quantity that can produce a cytopathic effect in the host cell culture challenged with the defined inoculum, visible under the microscope and/or to the naked eye as a plaque. A number of plaque forming units (PFU) per unit volume is a conventional way to refer the titer of an infective entity in a specimen or preparation. plaque forming unit plaque forming units [PFU] CDISC {PFU} Plaque Forming Unit Plaque_Forming_Unit Unit of Biological Entity UCUM Terminology ICH Unit of Measure Terminology HL7 Unit of Measure Terminology CDISC SDTM Unit of Measure Terminology CDISC SEND Terminology