American Registry of Radiologic Technologists (ARRT) Practice Exam

Strep throat is classified as what type of organism?

1. Virus

2. Fungus

3. Bacteria

4. Parasite

The correct answer is: Bacteria

Strep throat is classified as a bacterial infection primarily caused by Streptococcus pyogenes, a type of bacteria known for its ability to infect the throat and skin. Understanding this classification is crucial because it influences the approach to treatment and management. Bacterial infections, like strep throat, are typically treated with antibiotics, which target and eliminate the bacteria causing the illness. In the case of strep throat, the presence of bacteria, particularly Streptococcus, leads to symptoms such as sore throat, redness in the throat, and sometimes fever or swollen lymph nodes. Recognizing strep throat as a bacterial infection means that healthcare providers can effectively implement appropriate diagnostic tests (like rapid strep tests) and treatments to alleviate the symptoms and prevent complications, such as rheumatic fever. Knowing that strep throat is not caused by viruses, fungi, or parasites helps differentiate it from other throat infections. For example, viral sore throats are usually self-limiting, fungal infections might require antifungal treatments, and parasitic infections are less common in relation to throat symptoms. This understanding is essential for effective patient care and management in the clinical setting.