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H.6 investigation summary: material 221716 is manufactured by rehydrating the media components with usp purified water, and thoroughly mixing until a homogeneous solution is obtained.The tubes are filled, capped, torqued, and then labeled by machine per standard operating procedure (sop).The tubes are terminally autoclaved in an air over pressure (aop) autoclave, per manufacturing instructions, using a validated cycle.Post autoclaving, tubes are packaged into final shipping configurations.The batch history record review for batch 1293275 was satisfactory and no quality notifications were generated during manufacturing and inspection.Formulation, filling, autoclaving, and torqueing processes were within specifications.Qc inspection and testing was satisfactory at time of release.Direct staining techniques are not part of qc release testing for this product.As part of the release criteria for this product, the bhr is reviewed to confirm the following: the total elapsed time between end of formulation and start of the autoclave cycle was within the specified limits.All autoclave parameters conformed to the validated cycle parameters for this product.The minimum f0 for this product was met.The complaint history was reviewed, and no other complaints have been taken on this batch.Retention samples from batch 1293275 (10 tubes) were available for inspection.No media defects were observed in 10/10 retention samples.All retentions tubes had the expected appearance for this product of light to medium light yellow, trace hazy to clear.No contaminated/turbid media was observed from 10/10 retention samples.For further investigation, retentions were tested for growth.One retention tube was placed into the 20-25 degree c incubator, and one retention tube was placed in the 33-37 degree c incubator.At 7 days incubation, there were no signs of growth or turbidity or change in the media appearance in 2/2 retention tubes.A gram stain was performed on one of the tubes and no viable organisms were observed.Caution should be exercised in reporting direct gram stain and/or other direct microbiological stain results on tissue specimens processed with this medium due to the possible presence of nonviable organisms in the culture medium.Culture media sometimes contain dead organisms derived from medium constituents, which may be visible in smears of culture media.Other sources of dead organisms visible upon gram staining include staining reagents, immersion oil, glass slides, and the specimens used for inoculation.If there is uncertainty about the validity of the gram stain, the culture should be reincubated for another hour or two and the test repeated before a report is given.This complaint cannot be confirmed.Bd will continue to trend complaints for contamination/non-viables.No additional actions are indicated at this time.Notes risk management review indicates the potential risk of the defect reported was assessed as severity [s1], per [baltrmterminalgpaph ], rev [02], id [18.0].
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