OSMT (Ontario Society of Medical Technologists) Practice Exam

What happens when material has been placed on agar but not yet incubated?

1. a. the person unpacking the box needs to sign off

2. b. a sign showing the box as "empty" must be visible

3. c. a sign showing the box as "contaminated" must be visible

4. d. a and b only

The correct answer is: d. a and b only

When material has been placed on agar but has not yet been incubated, the status of the materials in the laboratory is crucial for ensuring the safety and accuracy of the experiment. It is important that anyone who is handling or interacting with the materials understands the current state of the agar plates, as they represent untapped biological samples that could be sensitive or hazardous. The first aspect entails that the person unpacking the box should sign off. This is a necessary procedural step to ensure that there is a record of who has handled the samples and when. Signing off also promotes accountability and traceability in laboratory processes, which is critical for maintaining the integrity of the work. The second aspect involves the visibility of a sign indicating the box as "empty." This serves as a clear communication tool to others in the laboratory that the box contains no active cultures or materials ready for incubation. Visibility ensures that future users understand that there are no immediate risks associated with the box. Together, these precautions help create a safe working environment and prevent any confusion about the status of the agar plates before incubation occurs. Therefore, when both conditions are met, it ensures proper laboratory protocol is followed.