covid test results code example

Example 1: covid test

TO UNDERSTAND THE ISSUE AT A HIGH LEVEL, TWO SIMPLISTIC EXAMPLES...
EX1: Of 1000 ASYMPTOMATIC...
if rapidTest *sensitivity* is 80%... 20% will have false negatives
assume 1% of pop are positive ( @ 2% - false positives)
if rapidTest *specificity* is 100% all infection-free would test negative)
from the pre-test probability (1%) 
 10 in 1000 will have it, 990 will not
 considering the 80% sensitivity  
  8 will test positive,  
  2 will test negative (false negatives)
Of the 990,  100% test negative ( *specificity* is 100%)

Example 2: Covid test

simplistic/explanatory examples in another answer ("Bayes Covid")
*Sensitivity* impacts false negatives and *Specificity* impacts false positives
Sensitivity is 63% for a nasopharyngeal swab and 31% for a throat swab, meaning
a false sense of security can result from you "passing" your Covid test.
With little *precedence* we cant “rule out illness” given a negative test result.
(NPV) is LOW & the probability of being free of disease is UNDETERMINED.

Example 3: covid test

low pre-test probability (10–20%)...
	asymptomatic individuals in a presumed low prevalence environment 
moderate pre-test probability (40–60%)
	cough and fever in a city/jurisdiction with known cases
high pre-test probability (80–90%) 
	may include a patient with fever, cough, shortness of breath, 
	with a known close contact with confirmed COVID19.

Example 4: how long does it take to get results from covid test

I got results back within 4 days from MAKO. This is what is says,
  
Negative (Not Detected)
The SARS-CoV-2 test is intended for the 
presumptive qualitative detection of nucleic acid 
from SARS-CoV-2 in upper respiratory specimens. A 
Negative result does not exclude infection caused 
by SARS-CoV-2 and the results must be correlated 
with clinical presentation and evaluated in the 
context of other laboratory and epidemiologic 
data. 
The COVID-19 RT-qPCR test is a Laboratory 
Developed test (LDT) not approved or cleared by 
the FDA and has been approved for Emergency Use 
Authorization (EUA). This test has been authorized 
by FDA under an Emergency Use Authorization (EUA). 
This test is only authorized for the duration of 
time the declaration that circumstances exist 
justifying the authorization of the emergency use 
of in vitro diagnostic tests for detection of 
SARS-CoV-2 virus and/or diagnosis of COVID-19 
infection under section 564(b)(1) of the Act, 21 
U.S.C. 360bbb-3(b)(1), unless the authorization is 
terminated or revoked sooner.