ReconstitutedArexvymust be discarded if it is not used within a maximum of:
30 minutes
4 hours
24 hours
1 week
Arexvyis anRSV (respiratory syncytial virus) vaccinefor adults60+ years.
Oncereconstituted, itmust be used within 4 hoursto ensurestability and potency.
After4 hours, bacterial growth andloss of vaccine efficacymake it unsafe for administration.
Why Other Options Are Incorrect:
A. 30 minutes?❌Too short—vaccines are stable for a longer duration.
C. 24 hours?❌Too long—Arexvy degrades faster.
D. 1 week?❌No vaccine remains effective for 7 days after reconstitution.
????Reference:CDC Vaccine Storage & Handling Guidelines,Arexvy Manufacturer Labeling (GSK).
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