Which vaccine is contraindicated in a child with a history of seizures?

MP CHO - 2022

Child Health Nursing (Pediatrics)

Easy

Appeared in: MP CHO - 2022

Explanation

The DPT vaccine contains a whole-cell pertussis (wP) component, which is known to have the potential to cause neurological side effects.
A history of seizures, or an unstable or progressive neurological disorder, is a specific precaution or contraindication for administering the pertussis component of the vaccine.
Severe neurological complications following DPT immunization can include prolonged convulsions and encephalopathy.
In such cases, the pertussis component is typically avoided, and the child may receive the Diphtheria and Tetanus (DT) vaccine instead.

Option B: The standalone measles vaccine is not contraindicated by a history of seizures. However, a history of seizures is a precaution for the combined MMRV (Measles, Mumps, Rubella, Varicella) vaccine, but not for the MMR or standalone measles vaccine.
Option C: The primary contraindication for the typhoid vaccine is a severe allergic reaction (anaphylaxis) to a previous dose or a vaccine component. It is not related to a history of seizures.
Option D: The BCG vaccine is a live attenuated vaccine. Its primary contraindication is an immunocompromised state (e.g., symptomatic HIV, cancer treatment) or pregnancy. It has no specific contraindication related to seizures.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Vaccine contraindications in pediatric patients with neurological conditions as background academic context rather than a clinical decision trigger.
A nurse's pre-vaccination screening is a crucial patient safety measure. Failing to identify a contraindication like a history of seizures before giving DPT can lead to serious, preventable adverse events.
Nurses play a key role in educating parents about the difference between common, mild vaccine reactions (like low-grade fever or local soreness) and severe reactions (like high-pitched, inconsolable crying or seizures) that require immediate medical evaluation.
What if? If a child has a stable neurological condition, such as well-controlled epilepsy, or a family history of seizures, the pediatrician may recommend using the DTaP (acellular pertussis) vaccine instead of DPT. DTaP has a lower risk of neurological side effects compared to the whole-cell DPT vaccine.

How to Approach the Question

First, identify the core of the question: it asks for a vaccine contraindication related to a specific medical history ('history of seizures').
This is a factual recall question. You need to access your knowledge of the immunization schedule and the specific contraindications for each common pediatric vaccine.
Consider each option one by one. Think about the components of each vaccine and their known major side effects or contraindications.
Recall that the DPT vaccine's pertussis component is famously associated with neurological reactions. This makes it the most likely answer.
Briefly check the other options to confirm. Measles and BCG are contraindicated in immunosuppression. Typhoid's main contraindication is hypersensitivity. None are primarily linked to seizures.
Select DPT as the correct answer based on the strong association between the pertussis component and neurological events.

Concept Tested & Keywords

Concept Tested: Vaccine contraindications in pediatric patients with neurological conditions.
Stem keywords: vaccine, contraindicated, child, history of seizures
Lead-in keywords: Which
Clinical cues: The patient's history of seizures is the critical piece of information that determines the correct answer.

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