Which law amended sections 2, 3, 4, 7, 8, 11, 13, 16, 17, 21, and 29 of RA 5527?

The correct answer is indeed that PD 498 amended various sections of RA 5527, also known as the Philippine Medical Technology Act. This law primarily regulates the practice of medical technology in the Philippines, and amendments through PD 498 were essential in updating and refining the existing provisions to better align with contemporary medical and technological practices.

PD 498 was significant in clarifying definitions, responsibilities, and professional standards in medical technology. By addressing specific provisions, this law enhanced the regulatory framework surrounding medical practitioners, ensuring the practice is up to date with the evolving landscape of healthcare and technology. Such amendments are crucial for maintaining a high standard of practice and protecting public health, as they ensure practitioners adhere to recognized guidelines and legal obligations.

The other choices represent different laws that do not specifically relate to the amendments of RA 5527. For instance, RA 6138 and PD 1534 pertain to other regulatory changes in different contexts and do not focus on the med-tech-specific revisions that PD 498 addresses. Thus, understanding the role of PD 498 helps clarify its importance in the evolution of medical technology law in the Philippines.