Paramedic National Registry Practice

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Prepare for the Paramedic National Registry Exam with our comprehensive quiz featuring a series of multiple-choice questions and detailed study materials. Each question is designed to enhance your understanding and readiness for this critical certification exam.

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What type of virus is primarily responsible for causing Croup?

Bacterial
Viral
Fungal
Parasitic

The correct answer is: Viral

Croup is primarily caused by viral infections, with the most common pathogens being the parainfluenza virus, although other viruses such as adenovirus, respiratory syncytial virus (RSV), and rhinovirus can also play a role. The illness is characterized by inflammation of the larynx, trachea, and bronchi, leading to the hallmark symptoms of a "barking" cough, hoarseness, and stridor due to the narrowing of the upper airway. The other types of infections—bacterial, fungal, and parasitic—typically do not cause croup. While bacterial infections can lead to conditions like epiglottitis, which can mimic croup-like symptoms, they are not the primary pathogens responsible for the classic presentation of croup. Fungal infections are rare in respiratory illnesses and are usually associated with immunocompromised patients. Parasitic infections typically involve gastrointestinal or systemic issues rather than respiratory illnesses like croup. Thus, the understanding that croup is primarily viral is essential for correctly diagnosing and managing the condition.