Which statement about the collection of serous fluid is NOT true?

The assertion that fluid can be re-collected multiple times safely reflects a misunderstanding of the potential risks and clinical practices involved in collecting serous fluid. While it is possible to perform multiple collections under appropriate circumstances, each procedure carries inherent risks, such as infection, trauma to the tissue, and the potential for complications like bleeding or damage to surrounding structures.

In most clinical settings, repeated procedures are approached with caution, considering the patient's overall condition, the underlying reason for fluid collection, and whether it is necessary to perform additional procedures. Thus, safety is a critical concern, and repeated collections should ideally be minimized and done only when absolutely necessary.

In contrast, the other statements accurately represent standard practices: serous fluid collection is often done under sterile conditions to prevent contamination, specific tubs may be used for various tests, such as non-anticoagulant tubes for bacterial cultures, and samples typically require immediate processing to ensure the integrity of the results.