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).
A clinical study conducted by the North Shore-LIJ Health System (NS-LIJHS) Laboratories evaluated the 3M Rapid Detection RSV Test and compared its sensitivity, specificity, positive and negative predictive values to the leading hospital rapid antigen test
brand and two conventional methods of diagnosing RSV, R-Mix culture and direct fluorescent antibody staining (DFA).
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.