Robert Centor, M.D., of the University of Alabama at Birmingham, performed the definitive study on adult sore throats showing that 10% or less of adult sore throats are caused by bacteria particularly Group A Streptococcus . He went on to prove that bacterial Strep throats were accompanied by a cough, large swollen and tender lymph nodes, a temperature greater than 100.4 and an exudate on your tonsils. The disease is primarily seen in children age 2-7 and those who care for them and play with them. In adults who did not meet the criteria of having a cough, swollen and enlarged lymph nodes, a temperature of 100.4 and a tonsillar exudate, a rapid streptococcus throat swab was accurate 100 % of the time. If the quick strep analysis is negative you do not have a strep throat and do not require an antibiotic. We had two patients this past fall who did not meet the criteria of Dr. Centor, did not have the physical findings consistent with a strep throat, had a negative quick strep throat swab but upon performing a traditional throat culture were found to be positive for Group a Beta Hemolytic Streptococcus requiring antibiotics. Why did the discrepancy occur? According to the manufacturer they had to recall a batch of diagnostic material that was ineffective. Both patients were placed on antibiotics soon after their clinical course did not follow the path of a viral infection and both did well.
Most adult sore throats and colds do not require antibiotics. We reserve them for patient with debilitating chronic illnesses especially advanced pulmonary, cardiac and neurologic disease patients. With influenza season on the horizon we will continue to assess patient’s clinically using history, exam, quick strep throat swabs and traditional microbiological throat cultures where appropriate. I will continue to prescribe antibiotics where necessary but must admit, last years’ experience opened my eyes to a more liberal approach with the prescribing of antibiotics for simple sore throats.
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