1. What is the main purpose of swabbing a vial’s septum with alcohol before every needle insertion?

To dissolve the rubber septum for easier needle entry
To minimize contaminants entering the vial through that entry point
To verify the vial’s purity level
It’s a cosmetic step with no safety function

2. Why is recapping a used needle by hand discouraged?

It dulls the needle tip
It voids the manufacturer’s warranty
The two-handed motion is the most common cause of accidental needle-stick injuries
It makes the needle harder to dispose of

3. Which of these is a warning sign that a reconstituted vial may be compromised?

The solution has turned cloudy since it was reconstituted
The vial has been refrigerated
The label lists a lot number
The vial was reconstituted with bacteriostatic water

4. How does handling a multi-use vial differ from handling a single-use vial?

Multi-use vials don’t need septum swabbing after the first entry
Multi-use vials require septum swabbing and a fresh needle on every single entry
Multi-use vials can be entered with the same needle throughout their usable window
There is no meaningful handling difference between the two

5. Why does record-keeping (lot numbers, dates, storage conditions) matter for research use?

It’s only required for regulatory paperwork, not for the research itself
It allows fast, targeted response if an upstream quality issue is identified with a batch
It replaces the need for a Certificate of Analysis
It has no effect on reproducibility