The fifth approach, testing all patients with a rapid antigen test
, treating those with a positive test with antibiotics, and performing a culture on those with a negative test, is a very popular approach.
The investigators performed throat cultures and rapid antigen tests
and used clinical information to derive a clinical prediction score in each of 787 patients, aged 3-69 years, who presented with acute sore throat.
They determined the sensitivity and specificity of 4 testing strategies: single rapid antigen test
(Genzyme OSOM Ultra Strep A Test[R]) performed in office; single rapid antigen test
performed in laboratory (using the same rapid antigen test
); result of either rapid antigen test
; and single rapid antigen test
in office plus culture.
Multiple blood, urine, and sputum cultures were unrevealing; rapid antigen test
was positive for influenza A, with subsequent confirmation at the CDPH VRDL for novel influenza A (H1).
Last year, a group at Michigan State University, East Lansing, attempted to develop a rule for when to use a rapid antigen test
versus when to culture a patient with pharyngitis for group A hemolytic streptococcus (GAS) infection, based on a cost analysis.
Detection sensitivity of polymerase chain reaction and rapid antigen test
for H5N1 * Dilution ([dagger]) Test [10.
Not following a negative rapid antigen test
for Streptococcus pyogenes with a traditional laboratory culture may put patients at risk for serious sequelae, Dr.
At my last count, there were at least 4 proprietary influenza surveillance systems, 2 associated with rapid antigen test
kits and 2 associated with antiviral drdgs, as well as this new arrival (associated with a new antibiotic).
Contract Awarded for Advance the clinical development of its OraQuick Ebola rapid antigen test
Elevated antistreptolysin-O (ASO) or anti-DNase B titers or evidence of GAS in the pharynx via a rapid antigen test
or throat culture are indications to try empiric GAS therapy If the urticaria goes away and stays away, you've solved the problem.
In addition, 52 (13%) of the 388 physicians who reported using the rapid antigen test
said they did not confirm a negative result with throat culture, as the clinical guidelines recommend.