id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-340788-p02v46xu	Zitek, Tony	The Appropriate Use of Testing for COVID-19	2020-04-13		.txt	text/plain	1599	101	61	With regard to the accuracy of the test, the most commonly used test for detecting SARS-CoV-2 is a nasopharyngeal swab that uses a reverse transcriptase-polymerase chain reaction (RT-PCR) to identify viral RNA. One non-peer reviewed publication reports that, based on 87 Chinese patients who were ultimately diagnosed with COVID-19, pharyngeal RT-PCR tests have a sensitivity and specificity of 78.2% and 98.8%, respectively. Along the same lines, Winichakoon et al published a letter to the editor in which they described a case of a COVID-19 patient who had a nasopharygeal/oropharyngeal RT-PCR swab that was negative for COVID-19, but RT-PCR of BAL fluid was positive. 12 Next, in a case series described by Xie et al, five patients from the Hunan province of China had ground-glass opacities on chest computed tomography (CT) that were suggestive of COVID-19, but initial pharyngeal RT-PCR tests were negative.	./cache/cord-340788-p02v46xu.txt	./txt/cord-340788-p02v46xu.txt