Open vial policy is applicable on following vaccines except - - RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Community Health Nursing

Easy

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Explanation

BCG is a lyophilized (freeze-dried) vaccine that must be reconstituted with a specific diluent before administration.
Reconstituted vaccines like BCG do not contain preservatives, making them highly susceptible to bacterial contamination and rapid loss of potency.
Due to this risk, reconstituted BCG vaccine must be discarded within 4 hours of mixing, making it a clear exception to the 28-day Open Vial Policy.

Option A: Pentavalent vaccine is a liquid, multi-dose vaccine that contains a preservative. It is explicitly included under the Open Vial Policy.
Option B: Tetanus toxoid (TT) is a liquid vaccine supplied in multi-dose vials and is covered by the Open Vial Policy, allowing its use for up to 28 days after opening.
Option D: Oral Polio Vaccine (OPV) is a liquid vaccine that is included in the Open Vial Policy. Opened vials can be used in subsequent sessions for up to 28 days if the cold chain is maintained.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Application and exceptions of the Open Vial Policy for vaccines as background academic context rather than a clinical decision trigger.
Correctly applying the Open Vial Policy is a key nursing responsibility that balances vaccine wastage reduction with patient safety.
Failure to discard reconstituted vaccines like BCG within the specified time (4 hours) can lead to the administration of a non-potent or contaminated vaccine, risking both ineffective immunization and serious infections like toxic shock syndrome.
What if? If an opened vial of Pentavalent vaccine has its Vaccine Vial Monitor (VVM) showing heat damage (inner square darker than the outer circle), it must be discarded immediately, even if it is within the 28-day open vial period. The VVM status always overrides the date.

How to Approach the Question

This is a negatively framed question asking for the 'exception'.
First, define the 'Open Vial Policy': it allows using certain opened multi-dose vials for up to 28 days.
Next, recall the primary rule for exceptions: the policy does NOT apply to reconstituted (freeze-dried) vaccines because they lack preservatives and must be used quickly.
Evaluate each option based on its formulation: Pentavalent (liquid), Tetanus toxoid (liquid), BCG (reconstituted/freeze-dried), OPV (liquid).
Identify BCG as the only reconstituted vaccine in the list, which makes it the correct exception.

Concept Tested & Keywords

Concept Tested: Application and exceptions of the Open Vial Policy for vaccines.
Stem keywords: Open vial policy, vaccines, Pentavalent, Tetanus toxoid, BCG, OPV
Lead-in keywords: except
Negative lead-in flag: The question asks for the EXCEPTION to a rule.

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E6 Comprehensive Textbook of Community Health Nursing for BSc Nursing Students Part 2 — Subpart B (pp 276-535 of 550) p. 230-232