A patient fluid discharge monitoring method and apparatus includes at least one article configured to be worn by a patient, the article having absorbent material and a RF tag received adjacent the absorbent material. The wide sides of the cast shell are formed against a recessed casting surface on each roll and the narrow end walls of the shell are formed against the tapered ends of the recessed area so one half of the narrow end wall is formed on each roll and the two halves are joined together at the nip to form the full perimeter of the metal casting. Next, the specimen is tested for its MIP-3\u03b1 expression level.