Final answer:
The task that the law does not generally allow an MA-C to perform among the given choices is urinary catheterization, as it usually requires more advanced training and might be outside the scope of an MA-C's allowed practices, depending on the state.
Step-by-step explanation:
The question asks which tasks the law does not allow a Medical Assistant-Certified (MA-C) to perform. It is crucial to understand the scope of practice for an MA-C, which can vary by state. Generally, MA-Cs are trained to perform tasks such as collecting specimens, CLIA waived lab tests, and phlebotomy. However, certain procedures like urinary catheterization may not be allowed as it typically requires more advanced medical training and might be outside the scope of an MA-C's practice depending on state laws. Assisting with a procedure is typically allowed under the supervision of a licensed healthcare provider. It's important to consult the specific state laws and regulations to determine the permitted tasks for an MA-C.