Para Pak 10% Formalin
Fecal Float: Specimens must be fresh and in no preservative.
Giardia Antigen: A portion of fresh stool must be placed in C&S Culture Medium (Cary-Blair) or Para-Pak 10% formalin vial within 24 hours. Refrigerated fresh stool is acceptable.
Fecal Float: Observation of coccidia is routinely part of the Fecal Float test. Low numbers of Cryptosporidium may not be detected with this technique.
Fecal Float: Cryptosporidium, if suspected, should be ordered separately (see Cryptosporidium Antigen)
Giardia Antigen: Formed stool specimens should be thoroughly emulsified and submitted in C&S Medium. Detects Giardia antigen only.