A parent told the public health nurse that her 6-year-old son has been taking tetracycline for a chronic skin… - NORCET 5 mains

NORCET 5 mains

Pharmacology

Easy

Appeared in: NORCET 5 mains

Explanation

Tetracycline is contraindicated in children younger than 8 years old due to its significant and permanent side effects on developing teeth.
The drug has a strong affinity for calcium (chelation) and gets deposited in calcifying structures like bones and teeth.
This deposition leads to permanent yellow-gray-brown discoloration of the teeth and can also cause enamel hypoplasia (defective enamel).
The risk is highest during the period of tooth calcification, which extends up to about 8 years of age.

Option B: This statement is factually incorrect. The calcium in milk binds to tetracycline, which significantly reduces its absorption from the gastrointestinal tract.
Option C: This is an overgeneralization. While tetracyclines are generally avoided in young children, they are not exclusively for adults. They are used in children over 8 and can be prescribed for younger children if the benefits outweigh the risks for specific severe infections.
Option D: This is a false statement. Secondary bacterial infections of skin disorders are a common complication and are typically treated with appropriate antibiotics.

Visual 1: Image - A clear photograph showing the characteristic yellow-brown staining of permanent teeth caused by tetracycline administration during childhood. This helps learners visualize the permanent nature of the adverse effect.
Visual 2: Diagram - A simple infographic illustrating the mechanism of tetracycline chelation with calcium and its deposition in developing teeth and bones.

Clinical Relevance

Nursing practice connection: Use the key finding related to Adverse effects of tetracycline in pediatric patients to guide bedside assessment, documentation, and the next nursing action.
A primary nursing responsibility is patient and family education regarding medication safety, including age-specific contraindications and potential adverse effects.
Nurses must verify medication orders that seem inappropriate for a patient's age, such as tetracycline for a 6-year-old, and consult with the prescriber.
This scenario highlights the importance of taking a thorough medication history and providing anticipatory guidance to prevent harm.

How to Approach the Question

First, identify the key elements in the clinical scenario: the patient is a 6-year-old child, and the medication is tetracycline.
Recall your pharmacology knowledge about tetracyclines. Focus specifically on contraindications and major side effects related to pediatric patients.
Remember the critical age cutoff for tetracycline use, which is 8 years old, and the reason for this restriction.
Evaluate each option based on this core knowledge.
Option A directly addresses the well-known side effect of permanent tooth staining in children under 8. This is a strong candidate.
Option B discusses absorption with milk. Recall that dairy products inhibit, not enhance, tetracycline absorption. Eliminate this option.

Concept Tested & Keywords

Concept Tested: Adverse effects of tetracycline in pediatric patients
Stem keywords: 6-year-old son, tetracycline, chronic skin condition, problems
Lead-in keywords: What should the nurse explain
Clinical cues: Patient age is 6 years old, which is under the 8-year threshold for tetracycline contraindication.
Clinical cues: The medication is tetracycline, known for specific age-related side effects.

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