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

P.CHO-2019

Community Health Nursing

Easy

Appeared in: P.CHO-2019

Explanation

The Open Vial Policy (OVP) applies to liquid, multi-dose vaccines that contain a preservative, allowing them to be used for up to 28 days after opening.
Pentavalent vaccine is a liquid combination vaccine (Diphtheria, Pertussis, Tetanus, Hepatitis B, and Haemophilus influenzae type b) supplied in multi-dose vials with a preservative.
Due to its formulation, the Pentavalent vaccine meets the criteria for the OVP, distinguishing it from the other options.
This policy helps minimize vaccine wastage while ensuring patient safety through strict adherence to storage and handling protocols.

Option A: Measles vaccine is a lyophilized (freeze-dried) powder that must be reconstituted before use. Reconstituted vaccines do not contain preservatives and must be discarded within 4-6 hours or at the end of the session.
Option C: Rotavirus vaccine is either lyophilized or comes as a liquid formulation without a preservative. In either case, it is not eligible for the OVP and must be discarded at the end of the immunization session.
Option D: BCG vaccine is a lyophilized (freeze-dried) vaccine that is reconstituted before administration. Like the measles vaccine, it lacks preservatives and must be discarded within 4 hours of reconstitution.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Application of the Open Vial Policy (OVP) for vaccines in the Universal Immunization Programme (UIP) as background academic context rather than a clinical decision trigger.
Correctly applying the Open Vial Policy is a critical nursing responsibility to prevent vaccine wastage, which is a significant economic issue in healthcare.
Improperly using an opened vial (e.g., using a reconstituted vaccine beyond its time limit) poses a severe risk of bacterial contamination and can lead to Toxic Shock Syndrome or administration of an ineffective vaccine.
A nurse must always check the Vaccine Vial Monitor (VVM), the expiry date, and the date/time of opening (if applicable) before drawing a dose from any vial.

How to Approach the Question

First, identify the core concept of the question, which is the 'Open Vial Policy' (OVP).
Recall the main rule of OVP: it applies to specific liquid, multi-dose vaccines with preservatives, allowing reuse for up to 28 days.
Note the negative framing ('does not'). Evaluate each option against the OVP criteria.
A) Measles: Reconstituted, so NOT under OVP. B) Pentavalent: Liquid multi-dose with preservative, so IS under OVP. C) Rotavirus: No preservative, so NOT under OVP. D) BCG: Reconstituted, so NOT under OVP.
Recognize that three options (A, C, D) fit the 'does not' condition. This indicates a flawed question.
Identify the 'odd one out'. Pentavalent is the only vaccine that IS covered by the policy. Conclude this is the likely intended answer to a corrected (positive) question.

Concept Tested & Keywords

Concept Tested: Application of the Open Vial Policy (OVP) for vaccines in the Universal Immunization Programme (UIP).
Stem keywords: vaccines, Open Vial Policy
Lead-in keywords: Which of the following, does not
Negative lead-in flag: This question asks which vaccine does 'not' come under the Open Vial Policy. However, three of the four options (Measles, Rotavirus, BCG) do not come under the policy, making the question invalid as written. The only logical interpretation is that the question intended to ask which vaccine does come under the policy, for which there is a single correct answer. The solution is based on this corrected premise.

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