What is the diagnostic test for otitis media?

The diagnostic test for otitis media is a physical examination. During this examination, a healthcare provider typically uses an otoscope to look into the ear canal and assess the eardrum for signs of infection, such as redness, swelling, and fluid behind the eardrum. This visual inspection is essential for diagnosing otitis media, as it allows the clinician to see the specific changes associated with the condition, such as bulging of the eardrum or the presence of pus.

In contrast, the other options are not used for diagnosing otitis media. An ultrasound of the scrotum is unrelated to ear conditions, focusing instead on evaluating potential issues in the scrotal area, such as testicular torsion or tumors. A streptococcal rapid test is designed to diagnose streptococcal throat infections and is not applicable for ear infections. A CT scan of the abdomen and pelvis with IV contrast dye is used for evaluating abdominal and pelvic pathology and would not provide relevant information for diagnosing an ear condition like otitis media.

Thus, the physical examination remains the cornerstone for diagnosing otitis media, allowing for effective identification and subsequent treatment of this common ear infection.