What is the contraindication of the Covishield vaccine?

NORCET 2 - 2021 (shift-1)

Pharmacology

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

The primary contraindication for the Covishield vaccine is a history of a severe allergic reaction (like anaphylaxis) to a previous dose.
This rule applies not only to the first dose but also to any known allergy to a specific ingredient within the vaccine.
This is a universal principle in vaccinology to prevent life-threatening hypersensitivity reactions on subsequent exposures.

Option B: Pollen allergy is an environmental allergy and does not involve the components of the Covishield vaccine. It is not a contraindication.
Option C: The term 'Foreign body allergy' is clinically vague and not a recognized contraindication. Allergic reactions are specific to allergens, which are particular molecules, not general 'foreign bodies'.
Option D: Hypertension (HTN), a stable chronic condition, is not a contraindication. Individuals with comorbidities like HTN were considered a priority group for vaccination due to their increased risk of severe COVID-19.

Visual 1: Infographic: Differentiating between a vaccine contraindication and a precaution. A contraindication is a condition that makes a particular treatment or procedure absolutely inadvisable. A precaution is a condition that may increase the risk of an adverse reaction or compromise the ability of the vaccine to produce immunity.
Visual 2: Flowchart: Steps for managing anaphylaxis post-vaccination, including recognition of signs (respiratory distress, hypotension, urticaria), immediate administration of epinephrine, calling for help, and subsequent supportive care.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Contraindications for COVID-19 Vaccination (Covishield) as background academic context rather than a clinical decision trigger.
The nurse's primary role in vaccination includes meticulous pre-screening for contraindications to ensure patient safety.
All staff at a vaccination site must be trained to recognize and manage anaphylaxis. An emergency kit with epinephrine must be readily available.
Patient education is key. Nurses should inform recipients about common, mild side effects (like pain at the injection site, fever) versus signs of a severe allergic reaction that require immediate medical attention.

How to Approach the Question

First, identify the core concept of the question, which is 'contraindication' for a vaccine.
Recall the absolute contraindications for most vaccines. A severe allergic reaction (anaphylaxis) to a previous dose or a component is the most common and critical one.
Evaluate each option against this core principle.
Option A directly matches the primary contraindication.
Options B, C, and D represent common allergies or chronic conditions that are generally not contraindications. Rule them out based on standard vaccination guidelines.

Concept Tested & Keywords

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