Question

Under what circumstances should a tube be pre-labeled?

Answer 1

Pre-labeled tubes are important to ensure accurate sample handling and safety in certain circumstances.

Step-by-step explanation:

A tube should be pre-labeled under certain circumstances to ensure accurate and organized handling of samples or substances. Pre-labeling tubes is especially important in situations where:

1. Multiple samples need to be collected and identified simultaneously
2. There is a risk of cross-contamination if labels are added after sample collection
3. The tube contains a hazardous substance and proper labeling is required for safety

By pre-labeling tubes, researchers and laboratory technicians can streamline the sample collection process, reduce the chances of errors or mix-ups, and maintain a safe working environment.