Which of the following diagnostic tests is used to confirm the diagnosis of maxillary and frontal sinusitis?
a) Sinus aspirates
b) MRI
c) CT scan
d) Sinus x-rays
Answer: a) Sinus aspirates
Explanation:
To confirm the diagnosis of maxillary and frontal sinusitis and identify the pathogen, sinus aspirates may be obtained. Flexible endoscopic culture techniques and swabbing of the sinuses have been used for this purpose. Sinus x-rays and CT scans may be obtained for patients with frontal headaches, in refractory cases, and if complications are suspected. pg.543
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