Foul-smelling discharge from unilateral nose is seen in?
Appeared in: NORCET 5 Prelims - Sept 2023 (Shift-1)
Explanation
A foreign body lodged in the nasal passage causes unilateral obstruction of normal drainage.
This obstruction leads to a buildup of secretions, creating an environment for bacterial overgrowth.
Secondary infection, often with anaerobic bacteria, results in a purulent (pus-filled) and characteristically foul-smelling discharge.
This presentation of unilateral, foul-smelling rhinorrhea is considered a classic sign of a nasal foreign body, particularly in the pediatric population.
Why Other Options Were Wrong
Option B: A rhinolith is a calcified concretion that forms around a nidus (often a long-retained foreign body). While it causes the same symptoms, it is a chronic complication or a specific type of foreign body, not the initial and most common cause.
Option C: Sinusitis typically presents with bilateral purulent discharge. While unilateral sinusitis can occur (often from a dental source) and may be foul-smelling, it is usually accompanied by other prominent symptoms like facial pain, pressure, or headache.
Option D: Rhinitis is a general term for inflammation of the nasal mucosa. Allergic rhinitis causes bilateral, clear, watery discharge. Infectious rhinitis (the common cold) is also typically bilateral with mucoid discharge. Neither typically causes a unilateral, foul-smelling discharge.
Related Visual
Visual 1: Diagram: Illustration showing a foreign object (like a bead or bean) lodged in the nasal passage, with surrounding inflammation and purulent discharge.
Visual 2: Clinical Photo: Anterior rhinoscopy view of a foreign body visible in a child's nostril, surrounded by inflamed mucosa.
Clinical Relevance
Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differential diagnosis of unilateral nasal discharge as background academic context rather than a clinical decision trigger.
Nurses must maintain a high index of suspicion for a foreign body in any child presenting with unilateral nasal symptoms, especially foul-smelling discharge or persistent unilateral epistaxis.
Prompt identification and removal are crucial to prevent complications such as aspiration, pressure necrosis of the nasal septum (leading to perforation), sinusitis, and formation of a rhinolith.
Patient education for parents on non-invasive removal techniques like the "mother's kiss" (occluding the unaffected nostril and blowing into the child's mouth) can be effective for recent insertions, but they should be advised to seek medical help if it fails or if the object is a button battery.
How to Approach the Question
First, identify the key clinical signs presented in the question: 1) Unilateral (affecting one side) and 2) Foul-smelling discharge.
Consider this specific combination of signs as a classic clinical picture.
Evaluate each option against these key features.
Recognize that a foreign body is the most common cause of unilateral obstruction leading to secondary infection and a foul odor.
Differentiate this from sinusitis and rhinitis, which are typically bilateral and have different discharge characteristics.
Understand that a rhinolith is a complication of a foreign body, making 'Foreign body' the more fundamental and appropriate answer.
Concept Tested & Keywords
Concept Tested: Differential diagnosis of unilateral nasal discharge
Stem keywords: Foul-smelling discharge, unilateral nose
Lead-in keywords: seen in
Question ID
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Practise the full NORCET 5 Prelims - Sept 2023 (Shift-1)
Attempt every question from this paper in a timed mock, then review the full solution for each one.