Final answer:
A medication vial or any vial with chemicals used for medical or lab purposes must be documented with the date it was opened and its expiration date after opening, to ensure safety and efficacy.
Step-by-step explanation:
The type of vial you need to document the date opened and the expiration from when it was opened is typically a medication vial or any vial containing chemicals or reagents used for medical or laboratory purposes. It is crucial to mark the date when the vial was first opened because many substances can degrade or become less effective after exposure to air, light, or other conditions. Moreover, documenting the expiration date after opening is essential as it may differ from the original expiration date provided by the manufacturer, ensuring safety and efficacy of the product.