Consider the following scenario: A student has prepared a series of analytical solutions to be run on an instrument in another room. The student has worn gloves throughout the preparation of the solutions, and has wiped up all drips and spills that occurred during that process. The student removes her gloves before leaving the lab room and carries her solutions in scintillation vials in a large clean beaker to the room where the instrument is located. Once in the new room, the student obtains a new pair of gloves before dispensing the solutions for analysis.Which of the following changes could improve the student's procedure? (Check all that apply.)
A. The student could have worn a single glove on the hand she used for transporting the solutions to the instrument room, and used her non-gloved hand for opening doors and pushing elevator buttons. CorrectB. The student could have worked with her lab partner so that one of them could carry the materials with gloved hands, while the other opened doors and pressed elevator buttons with non-gloved hands. CorrectC. The student could have chosen a plastic bin, or other less breakable container to carry her solutions to the instrument so that she wasn't carrying glassware with her bare hands.

Answer: The best change that would improve the student´s procedure is the Letter B (The student could have worked with her lab partner so that one of them could carry the materials with gloved hands, while the other opened doors and pressed elevator buttons with non-gloved hands.)

Explanation:

Choosing letter A, it´s not a good idea to only use a hand to transport glassware, while using the other to handle doors and press elevator buttons. There is a huge posibility to lose the beaker and finally use the bare hand to try to catch it.

Choosing letter C, it´s not a good idea either, because using plastic material is not appropiate when doing an analytical test like this one.

Choosing letter B, it´s the best option. Always ask help to a partner in order to open you doors and go along with you just in case of emergency; at the same time, you can handle the scintillation vials in the beaker with both hands, and be sure to take them safetely to the other room.