Which of the following microorganisms causes gonorrhea?

Appeared in: NORCET 1 - 2020

Explanation

Neisseria gonorrhoeae is the specific pathogenic bacterium responsible for causing the sexually transmitted infection (STI) known as gonorrhea.
It is a Gram-negative diplococcus, often appearing in pairs with a characteristic 'kidney bean' shape under a microscope.
Transmission occurs primarily through sexual contact, and it infects the mucous membranes of the genital tract, rectum, and pharynx.

Option A: 'Stylus gonorrhoeae' is a fabricated name and not a recognized microorganism.
Option B: Streptococcus pneumoniae is a Gram-positive bacterium that causes diseases like pneumonia, meningitis, and otitis media, not gonorrhea.
Option C: 'Stereotyoist gonorrhoeae' is a fabricated or misspelled name that does not exist in microbiology.

Visual 1: Micrograph - A Gram stain of Neisseria gonorrhoeae, showing the characteristic pink/red (Gram-negative) diplococci, often located within neutrophils. This helps visualize the pathogen's appearance.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Causative agent of Gonorrhea as background academic context rather than a clinical decision trigger.
Accurate identification of the causative agent is crucial for prescribing the correct antibiotic therapy, as N. gonorrhoeae has developed resistance to many common antibiotics.
A core nursing responsibility is patient education regarding partner notification and treatment to interrupt the chain of transmission and prevent reinfection.
What if? If a newborn presents with conjunctivitis, it could be ophthalmia neonatorum caused by N. gonorrhoeae acquired during birth. This is a medical emergency requiring immediate antibiotic treatment to prevent blindness.

How to Approach the Question

First, identify the core of the question, which asks for the specific microorganism that causes gonorrhea.
Scan the options. Recognize that gonorrhea is a well-known STI, and its causative agent is a specific bacterium.
Eliminate options that are clearly misspelled or fabricated, such as 'Stylus' and 'Stereotyoist'.
Differentiate between the remaining known pathogens. Recall or deduce that 'Streptococcus pneumoniae' is associated with respiratory infections, not STIs.
Select 'Neisseria gonorrhoeae' as the correct pathogen for gonorrhea.

Concept Tested & Keywords

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Practise the full NORCET 1 - 2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.