What information should a pharmacist document after administering a vaccine?

The correct answer emphasizes the essential information that must be documented after administering a vaccine to ensure proper record-keeping and patient safety. Specifically, documenting the vaccine type provides crucial identification of what was given, as different vaccines may have various indications and potential side effects. Recording the date administered is important for tracking the vaccination schedule and ensuring that patients receive doses at the appropriate intervals.

Including the lot number is vital for tracing the vaccine back to its source in case of any adverse reactions or recalls. The expiration date is equally important as it ensures that only vaccines that are safe and effective are administered. Finally, documenting the site of administration is necessary for consistency in vaccination practices and for any future healthcare personnel that may need this information.

This thorough documentation helps maintain an accurate medical record, enhances patient safety, and supports public health efforts by providing data for immunization tracking and management. Other options do not encompass the comprehensive details necessary for effective vaccination documentation, making option B the most complete and relevant choice.