Which of the following vaccines does not come under the Open Vial Policy (Open Vial Policy)?

Appeared in: P.CHO-2019

Explanation

The Open Vial Policy (OVP) applies to specific liquid, multi-dose vaccines that contain a preservative, allowing them to be used for up to 28 days after opening under strict conditions.
BCG (Bacillus Calmette-Guérin) vaccine is a lyophilized (freeze-dried) vaccine that must be reconstituted before use.
Once reconstituted, BCG does not contain a preservative and is highly susceptible to contamination and loss of potency.
Therefore, all reconstituted vaccines like BCG must be discarded at the end of the immunization session or within 4-6 hours, whichever comes first, and are explicitly excluded from the Open Vial Policy.

Option A: Oral Polio Vaccine (OPV) is a liquid, multi-dose vaccine that contains preservatives.
Option B: Pentavalent vaccine (DPT-HepB-Hib) is a liquid, multi-dose vaccine supplied with preservatives.
Option C: DPT (Diphtheria, Pertussis, Tetanus) is a classic example of a liquid, multi-dose vaccine covered by the OVP.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Open Vial Policy and Vaccine Management as background academic context rather than a clinical decision trigger.
Correctly applying the Open Vial Policy is crucial for nurses to ensure patient safety by preventing the administration of contaminated or non-potent vaccines.
Adherence to the policy helps in reducing vaccine wastage, which is economically significant for national immunization programs.
A nurse's role includes accurately labeling the vial with the date and time of opening, ensuring proper storage, and discarding vials according to policy guidelines.

How to Approach the Question

First, identify the core concept: 'Open Vial Policy'.
Note the negative framing of the question: 'does NOT come under'. This means you are looking for the exception among the options.
Recall the fundamental rule of the OVP: it applies to liquid, multi-dose vaccines with preservatives, but NOT to reconstituted (freeze-dried) vaccines.
Categorize each option: Is it a liquid vaccine or a reconstituted one?
OPV, Pentavalent, and DPT are all liquid vaccines. BCG is the one that is reconstituted.
Based on this differentiation, identify BCG as the vaccine that does not fall under the Open Vial Policy.

Concept Tested & Keywords

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 193-195

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) pp. 124-126, 125-127

Practise the full P.CHO-2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.