Why are pcr test results taking so long to come back.How long do PCR Covid test results take?
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Why are pcr test results taking so long to come back -
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Watch thread Flip. Would it take longer to get Pcr result if you test positive? OP's posts: See next See all. Add message Bookmark. See all. Advertisement device! OP's posts: See all. Even at such hospitals, the tests are often prioritized for patients who have been admitted and staff who might have been exposed to COVID, said Chahine. His lab can process 93 samples at a time and run a few cycles a day, up to about , he said. Last week, it did a day, three days in a row.
As the worldwide demand for testing has grown, so, too, have shortages of the chemical agents used in the test kits, the swabs used to get the samples, and the protective masks and gear used by health workers taking the samples. At the front of the line, she said, should be health care workers and first responders; older adults who have symptoms, especially those living in nursing homes or assisted living residences; and people who may have other illnesses that would be treated differently if they were infected.
Bottom line: prioritizing who is tested will help speed the turnaround time for getting results to people in these circumstances and reduce their risk of spreading the illness.
Still, urgent shortages of some of the chemicals needed to process the tests are hampering efforts to test health care workers, including at hospitals such as SUNY Downstate medical center in hard-hit New York.
Looking forward, companies are working on quicker tests. Indeed, the FDA in recent days has approved tests from two companies that promise results in 45 minutes or less. Those will be available only in hospitals that have special equipment to run them. One of those companies, Cepheid of Sunnyvale, California, says about 5, U.
Both firms say they will ship to the hospitals soon but have given few specifics on quantity or timing. But many public health officials say doctors and clinics need a truly rapid test they can use in their offices, one like the tests already in use for influenza or strep throat. A number of companies are moving in that direction. The tests are processed on a small device already installed in thousands of medical offices, ERs, urgent care clinics and other settings.
Abbott said it will begin this week to make 50, tests available per day. Even though lab-based PCR tests, which are done at large labs and academic medical centers, can take several hours to produce a result, the machines used can test high numbers of cases all at once. The rapid test by Abbott — and other, similar tests now under development — do far fewer at a time but deliver results much faster. It is an editorially independent program of the Henry J. Kaiser Family Foundation which is not affiliated with Kaiser Permanente.
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