covid rapid test: นี่คือโพสต์ที่เกี่ยวข้องกับหัวข้อนี้
COVID-19 Rapid Tests: Accuracy, Types, and Where to Find Them
August 27, 2021
Key takeaways:
-
There are two different types of rapid COVID-19 tests.
-
In most cases, rapid COVID-19 tests deliver results in less than an hour.
-
Many pharmacies offer rapid diagnostic tests with $0 out-of-pocket cost to those who meet certain criteria.
Edwin Tan/E+ via Getty Images
Advertisement
Advertisement
Since the start of the coronavirus pandemic in March, the U.S. has conducted over 150 million tests for COVID-19, the disease caused by the virus. Currently, the U.S. is averaging about 1 million or more tests per day. Yet most states still aren’t meeting the testing recommendations of the World Health Organization (WHO), which advises a target of 5% or less of tests coming back positive. This is to make sure that enough testing is being done to catch mild or asymptomatic cases.
VIDEO: What to know about COVID-19 tests
Companies continue to develop new ways to test for SARS-CoV-2, the virus that causes COVID-19. One thing is clear, though: We need scalable testing options with fast results. As businesses reopen and students return to in-person classes, infections need to be quickly identified to prevent further spread.
This is now possible, thanks to the emergence of rapid testing options for the virus that causes COVID-19. Several companies have developed tests that can be done at point-of-care, such as at a clinic or healthcare provider’s office. With these tests, samples don’t need to be sent to a laboratory for processing. Most of these rapid tests can produce results in 30 minutes or less.
In this article, we’ll cover the basics of rapid diagnostic tests and the best way to find one near you.
What is a rapid diagnostic test?
The key difference between rapid tests and standard tests is how long they take to process results. As the name suggests, rapid tests can produce fast results. Standard coronavirus tests typically use more complex, time-consuming methods and bulky equipment. Rapid tests are often simpler, allowing them to process samples faster. The fastest test currently available, ID NOW by Abbott, can detect the virus in 13 minutes or less.
Rapid tests can also be done at point-of-care, without requiring an outside laboratory for processing samples. With standard tests, samples are sent to a lab. This can cause bottlenecks, potentially delaying results for days, if not weeks, as demand increases. Rapid tests often use a portable device to test samples, so the entire process can be completed at the same location.
To summarize, rapid tests can be done on-site. They are generally simpler or less time-consuming. And they produce results in under an hour.
Next, we’ll cover the types of rapid testing that have been developed so far.
Advertisement
Advertisement
Types of rapid diagnostic tests
There are currently two different types of rapid diagnostic tests: molecular and antigen tests. Both work differently in how they detect the virus that causes COVID-19.
1) Molecular tests
Molecular tests detect the presence of viral genetic material in a sample. They were the first type of test to be authorized and widely used. These tests typically use techniques called RT-PCR (reverse transcription polymerase chain reaction) or isothermal amplification. Genetic material from the sample is copied and compared to the genetic sequence of the coronavirus.
Seven rapid molecular tests have been authorized for use at point-of-care. These include several that can also test for other viruses like those that cause the flu. Most of these tests can produce results in 30 minutes or less.
2) Antigen tests
Antigen tests look for specific proteins on the surface of the virus. These tests tend to be simpler in design and less expensive to make than molecular tests.
Six antigen tests have been authorized for use at point-of-care, including BinaxNOW by Abbott. BinaxNOW is currently the only rapid antigen test that does not require an instrument. Instead, it uses a swab and a test card about the size of a credit card. Antigen tests typically take about 15 minutes to get results.
Rapid diagnostic tests in the pipeline
The ideal test is one that is:
-
Fast
-
Easy to use
-
Inexpensive
-
Accurate
Researchers think that they may have one with the potential to check all of these boxes: CRISPR-based tests.
CRISPR stands for clustered regularly interspaced short palindromic repeats. Many believe this powerful gene-editing technology could potentially cure human genetic diseases. With current research, it may be useful in detecting COVID-19 too.
The first CRISPR-based COVID-19 test was authorized in May, and it takes about an hour to produce results. The latest test being studied is potentially faster and more efficient, with results in about 5 minutes. CRISPR works through molecular “scissors” that identify and cut into the viral genetic material, which helps the test detect the presence of the virus.
What lies ahead for these CRISPR-based COVID-19 tests? Companies are working to make them an easy-to-use and inexpensive alternative to help ease testing demands.
Where can I find rapid testing near me?
If you have COVID-19 symptoms or believe you’ve been exposed to the virus, you’ll want to contact your provider or health department to see if you need to get tested. Because testing supplies are limited, tests should be reserved for those people who need them.
But if you need a test with faster results, there may be some options available to you. Depending on where you are located and where you go for testing, you may need to meet certain criteria to be eligible for a test, like symptoms or exposure risk. If you are booking an appointment online, you may be asked to fill out a short questionnaire to make sure that you meet the requirements.
Most testing sites use the standard molecular tests for COVID-19. Some may offer rapid diagnostic tests, but availability is usually limited. The rapid tests may be referred to as:
-
Rapid tests
-
Rapid point-of-care (POC) tests
-
Same-day tests
-
Instant tests
-
15-minute tests
CVS Pharmacy’s MinuteClinic and Walgreens both offer no-cost COVID-19 testing for people who meet certain criteria at select locations. While most locations offer standard molecular testing, some have rapid testing options.
There shouldn’t be any out-of-pocket costs for testing. But you’ll want to check with your health plan to make sure. Rapid test results are typically available same-day or within 24 hours. Standard test results can be expected within 2 to 3 days.
MinuteClinic at CVS Pharmacy currently lists testing options in 33 states plus Washington, D.C. You’ll need to meet criteria to be eligible for testing. If you don’t meet the criteria, MinuteClinic also offers voluntary testing options where you pay out-of-pocket for the test. The rapid testing option is not available for voluntary testing.
Walgreens currently lists testing options in 49 states plus Washington, D.C., and Puerto Rico. The testing site locator shows if a testing location offers rapid testing options. You’ll also need to meet criteria to be eligible for a test.
For additional options, you can search for COVID-19 testing locations near you here.
Advertisement
Advertisement
How accurate are rapid diagnostic tests?
You may be wondering if rapid diagnostic tests are as accurate as standard tests. Do they compromise accuracy for speed, for example?
When rapid molecular tests first became available, concerns rose that they were missing a significant number of positive cases. Of particular concern was the rapid ID NOW test by Abbott. People who may have had the virus were testing negative. This is called a false negative result. According to manufacturer studies, there is now more real-world data suggesting that the test is reliable. The ID NOW test has been able to identify 93% of positive samples and over 98% of negative samples when compared to standard molecular test results, Abbott says.
Even so, standard molecular tests are the gold standard, but they are not 100% accurate, either.
Rapid antigen tests are very specific for the coronavirus. A positive result likely means that you are infected. However, rapid antigen tests are not as sensitive as other tests, so there is a higher chance of a false negative result.
In general, rapid tests seem to be more accurate when you test earlier in the infection. The best time to be tested is when the amount of virus in your body (the viral load) is at its highest. A higher viral load increases the chances that the test will pick up on the presence of the virus in a sample. For example, the rapid ID NOW test has been shown in manufacturer studies to be more accurate when used within 7 days of when symptoms start.
With rapid diagnostic tests, it is recommended that you confirm a negative rapid test result with a standard molecular test. This is especially recommended if you have symptoms or have likely been exposed to the virus. If you test positive, you likely are infected and should contact your healthcare provider for the next steps.
What role can rapid diagnostic tests play in COVID-19?
As we’ve said, standard testing resources can get backlogged and results can be significantly delayed. This can be a problem both for providers treating patients and for people proactively self-isolating to avoid exposing others to the virus. This is where rapid diagnostic testing can help fill in some of these gaps to get results back fast.
Rapid diagnostic tests can be helpful in confirming a suspected COVID-19 case quickly, especially when used in the early stages of the infection. These tests can also be useful in screening efforts. Screening means identifying someone who is contagious, but may or may not be showing symptoms, so they can take action before they spread the virus to others. For example, businesses might screen employees before they come back to the office. In fact, the U.S. government recently purchased 150 million of the BinaxNOW tests to distribute across the country in an effort to help governors reopen their states.
The bottom line
When waiting around a week for standard COVID-19 testing results is not an option, rapid tests offer a quick solution. Rapid antigen tests can provide a negative or positive result in about 15 minutes. While not as widely available, pharmacies such as CVS, Kroger, and Walgreens do offer rapid testing for eligible people.
—
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[Update] COVID-19 Rapid Tests: Accuracy, Types, & Where to Find Them | covid rapid test – Sonduongpaper
COVID-19 Rapid Tests: Accuracy, Types, and Where to Find Them
August 27, 2021
Key takeaways:
-
There are two different types of rapid COVID-19 tests.
-
In most cases, rapid COVID-19 tests deliver results in less than an hour.
-
Many pharmacies offer rapid diagnostic tests with $0 out-of-pocket cost to those who meet certain criteria.
Edwin Tan/E+ via Getty Images
Advertisement
Advertisement
Since the start of the coronavirus pandemic in March, the U.S. has conducted over 150 million tests for COVID-19, the disease caused by the virus. Currently, the U.S. is averaging about 1 million or more tests per day. Yet most states still aren’t meeting the testing recommendations of the World Health Organization (WHO), which advises a target of 5% or less of tests coming back positive. This is to make sure that enough testing is being done to catch mild or asymptomatic cases.
VIDEO: What to know about COVID-19 tests
Companies continue to develop new ways to test for SARS-CoV-2, the virus that causes COVID-19. One thing is clear, though: We need scalable testing options with fast results. As businesses reopen and students return to in-person classes, infections need to be quickly identified to prevent further spread.
This is now possible, thanks to the emergence of rapid testing options for the virus that causes COVID-19. Several companies have developed tests that can be done at point-of-care, such as at a clinic or healthcare provider’s office. With these tests, samples don’t need to be sent to a laboratory for processing. Most of these rapid tests can produce results in 30 minutes or less.
In this article, we’ll cover the basics of rapid diagnostic tests and the best way to find one near you.
What is a rapid diagnostic test?
The key difference between rapid tests and standard tests is how long they take to process results. As the name suggests, rapid tests can produce fast results. Standard coronavirus tests typically use more complex, time-consuming methods and bulky equipment. Rapid tests are often simpler, allowing them to process samples faster. The fastest test currently available, ID NOW by Abbott, can detect the virus in 13 minutes or less.
Rapid tests can also be done at point-of-care, without requiring an outside laboratory for processing samples. With standard tests, samples are sent to a lab. This can cause bottlenecks, potentially delaying results for days, if not weeks, as demand increases. Rapid tests often use a portable device to test samples, so the entire process can be completed at the same location.
To summarize, rapid tests can be done on-site. They are generally simpler or less time-consuming. And they produce results in under an hour.
Next, we’ll cover the types of rapid testing that have been developed so far.
Advertisement
Advertisement
Types of rapid diagnostic tests
There are currently two different types of rapid diagnostic tests: molecular and antigen tests. Both work differently in how they detect the virus that causes COVID-19.
1) Molecular tests
Molecular tests detect the presence of viral genetic material in a sample. They were the first type of test to be authorized and widely used. These tests typically use techniques called RT-PCR (reverse transcription polymerase chain reaction) or isothermal amplification. Genetic material from the sample is copied and compared to the genetic sequence of the coronavirus.
Seven rapid molecular tests have been authorized for use at point-of-care. These include several that can also test for other viruses like those that cause the flu. Most of these tests can produce results in 30 minutes or less.
2) Antigen tests
Antigen tests look for specific proteins on the surface of the virus. These tests tend to be simpler in design and less expensive to make than molecular tests.
Six antigen tests have been authorized for use at point-of-care, including BinaxNOW by Abbott. BinaxNOW is currently the only rapid antigen test that does not require an instrument. Instead, it uses a swab and a test card about the size of a credit card. Antigen tests typically take about 15 minutes to get results.
Rapid diagnostic tests in the pipeline
The ideal test is one that is:
-
Fast
-
Easy to use
-
Inexpensive
-
Accurate
Researchers think that they may have one with the potential to check all of these boxes: CRISPR-based tests.
CRISPR stands for clustered regularly interspaced short palindromic repeats. Many believe this powerful gene-editing technology could potentially cure human genetic diseases. With current research, it may be useful in detecting COVID-19 too.
The first CRISPR-based COVID-19 test was authorized in May, and it takes about an hour to produce results. The latest test being studied is potentially faster and more efficient, with results in about 5 minutes. CRISPR works through molecular “scissors” that identify and cut into the viral genetic material, which helps the test detect the presence of the virus.
What lies ahead for these CRISPR-based COVID-19 tests? Companies are working to make them an easy-to-use and inexpensive alternative to help ease testing demands.
Where can I find rapid testing near me?
If you have COVID-19 symptoms or believe you’ve been exposed to the virus, you’ll want to contact your provider or health department to see if you need to get tested. Because testing supplies are limited, tests should be reserved for those people who need them.
But if you need a test with faster results, there may be some options available to you. Depending on where you are located and where you go for testing, you may need to meet certain criteria to be eligible for a test, like symptoms or exposure risk. If you are booking an appointment online, you may be asked to fill out a short questionnaire to make sure that you meet the requirements.
Most testing sites use the standard molecular tests for COVID-19. Some may offer rapid diagnostic tests, but availability is usually limited. The rapid tests may be referred to as:
-
Rapid tests
-
Rapid point-of-care (POC) tests
-
Same-day tests
-
Instant tests
-
15-minute tests
CVS Pharmacy’s MinuteClinic and Walgreens both offer no-cost COVID-19 testing for people who meet certain criteria at select locations. While most locations offer standard molecular testing, some have rapid testing options.
There shouldn’t be any out-of-pocket costs for testing. But you’ll want to check with your health plan to make sure. Rapid test results are typically available same-day or within 24 hours. Standard test results can be expected within 2 to 3 days.
MinuteClinic at CVS Pharmacy currently lists testing options in 33 states plus Washington, D.C. You’ll need to meet criteria to be eligible for testing. If you don’t meet the criteria, MinuteClinic also offers voluntary testing options where you pay out-of-pocket for the test. The rapid testing option is not available for voluntary testing.
Walgreens currently lists testing options in 49 states plus Washington, D.C., and Puerto Rico. The testing site locator shows if a testing location offers rapid testing options. You’ll also need to meet criteria to be eligible for a test.
For additional options, you can search for COVID-19 testing locations near you here.
Advertisement
Advertisement
How accurate are rapid diagnostic tests?
You may be wondering if rapid diagnostic tests are as accurate as standard tests. Do they compromise accuracy for speed, for example?
When rapid molecular tests first became available, concerns rose that they were missing a significant number of positive cases. Of particular concern was the rapid ID NOW test by Abbott. People who may have had the virus were testing negative. This is called a false negative result. According to manufacturer studies, there is now more real-world data suggesting that the test is reliable. The ID NOW test has been able to identify 93% of positive samples and over 98% of negative samples when compared to standard molecular test results, Abbott says.
Even so, standard molecular tests are the gold standard, but they are not 100% accurate, either.
Rapid antigen tests are very specific for the coronavirus. A positive result likely means that you are infected. However, rapid antigen tests are not as sensitive as other tests, so there is a higher chance of a false negative result.
In general, rapid tests seem to be more accurate when you test earlier in the infection. The best time to be tested is when the amount of virus in your body (the viral load) is at its highest. A higher viral load increases the chances that the test will pick up on the presence of the virus in a sample. For example, the rapid ID NOW test has been shown in manufacturer studies to be more accurate when used within 7 days of when symptoms start.
With rapid diagnostic tests, it is recommended that you confirm a negative rapid test result with a standard molecular test. This is especially recommended if you have symptoms or have likely been exposed to the virus. If you test positive, you likely are infected and should contact your healthcare provider for the next steps.
What role can rapid diagnostic tests play in COVID-19?
As we’ve said, standard testing resources can get backlogged and results can be significantly delayed. This can be a problem both for providers treating patients and for people proactively self-isolating to avoid exposing others to the virus. This is where rapid diagnostic testing can help fill in some of these gaps to get results back fast.
Rapid diagnostic tests can be helpful in confirming a suspected COVID-19 case quickly, especially when used in the early stages of the infection. These tests can also be useful in screening efforts. Screening means identifying someone who is contagious, but may or may not be showing symptoms, so they can take action before they spread the virus to others. For example, businesses might screen employees before they come back to the office. In fact, the U.S. government recently purchased 150 million of the BinaxNOW tests to distribute across the country in an effort to help governors reopen their states.
The bottom line
When waiting around a week for standard COVID-19 testing results is not an option, rapid tests offer a quick solution. Rapid antigen tests can provide a negative or positive result in about 15 minutes. While not as widely available, pharmacies such as CVS, Kroger, and Walgreens do offer rapid testing for eligible people.
—
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Instructiuni autorecoltare test rapid antigen Covid-19
นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูเพิ่มเติม
COVID-19 IgM/IgG Rapid Test
Product Page: https://www.raybiotech.com/covid19igmiggrapidtestkit/
This is an instructional video for the RayBiotech Coronavirus (COVID19) IgM/IgG Rapid Test for medical professionals and laboratories only.
This is how the new Abbott Labs COVID-19 rapid test works
Abbott Labs just won emergency FDA approval for a rapid COVID19 test they say is 97% accurate and can give you results in 15 minutes. FULL STORY: https://abc7chicago.com/health/thisishowthenewabbottlabscovid19rapidtestworks/6392220/
How to use the AbC-19 COVID-19 rapid antibody test. Now in boxes of 25
Watch this video to the end to learn how to use AbC19 Rapid Test (Now in boxes of 25), a COVID19 rapid neutralising antibody test. By following the simple 5 step process in this video, professionals can use AbC19 Rapid Test to detect COVID19 antibodies in 20 minutes.
From April 2020, the AbC19 lateral flow test was paired with an easytouse mobile app which allows a trained professional to generate an antibody certificate on a person’s smartphone. The AbC19™ app and testing solution is a powerful tool for providing businesses and communities with the confidence to return to normal life, safely.
AbC19 Rapid Test uses lateral flow immunoassay technology for the detection of Immunoglobulin G (IgG) antibodies for Severe Acute Respiratory Syndrome Coronavirus 2 (SARSCoV2 or COVID19) in 20 minutes. Only a finger prick of blood is needed to produce a positive or negative result. The test can be used by anyone without training.
The Covid19 rapid antibody test, developed by Abingdon Health, the lead in the UKRapid Test Consortium (UKRTC), is CE marked for professional use in the UK and EU.
HOW TO: A Guide for the BinaxNOW™ COVID-19 Self Test
Finally: a fast, proven and trusted COVID19 test that is readily available to the public. Simply purchase at a retail store near you and perform the test in the comfort and convenience of your home, with results in 15 minutes. This demo includes stepbystep instructions on how to take a BinaxNOW COVID19 Self Test.
Here are a few other frequently asked questions to help guide you:
1. How is the test administered?
Using the BinaxNOW Self Test is simple, even for people who have never tested themselves. People will only need to perform a minimally invasive nasal swab (not the deeper nasopharyngeal swab) and all materials required to perform the test (swab, test card, and reagent solution) will come in the box. Each test kit will include an illustrated quick reference guide that provides stepbystep instructions on how to use the test.
2. Who should use this test?
The test is indicated for all people aged 15 years or older and for children as young as two years old when samples are collected by an adult. The test can be used for people with and without symptoms.
3. Should people who were vaccinated use this test?
Testing will remain an essential part of our short and longterm COVID19 recovery strategy. BinaxNOW will be a key tool alongside vaccination as we get back to life. We don’t yet know how long the vaccine confers immunity for and how variants will evolve.
4. How will people report their test results?
People are encouraged to follow the latest CDC guidelines, which is to communicate your results to your healthcare provider, who is responsible for reporting your test results to the state health department.
5. How many tests come in a package?
The test will come in a 2count box.
6. How long should people wait between taking BinaxNOW Self Tests?
The tests should be administered twice over three days with at least 36 hours between tests.
7. Can the BinaxNOW Self Test be thrown into the garbage after use?
Users can dispose of the test in common household waste in line with the test’s instructions for use.
8. How do I know if I have a positive or negative test?
To check for a positive result, look at the result window for two pink or purple lines. Even a faint line next to sample is a positive result. A negative result will have only one pink or purple line on the top half of the results window where it says control.
9. What if my test result is invalid?
If your results window has any of the following, the test result may be invalid:
• No lines appear by control or sample
• The control line is blue and not pink/purple
• There is a pink/purple line by sample, but no line by control
• The control line is blue, but the sample is pink/purple
If you see an invalid result, contact technical support at: 18336371594
Have additional questions? For further information about the BinaxNOW Self Test or to reach customer support, please visit: https://abbo.tt/3AnwgSI
Learn more: https://abbo.tt/2QTLyh7
Subscribe to the Abbott Channel and receive automatic updates: https://www.youtube.com/channel/UC346EX3v26ACsjLheHwHDg/?sub_confirmation=1
RELATED VIDEOS:
The Hunt for New COVID19 Variants: https://youtu.be/e2JV46bsj0g
Find out more about us on http://www.abbott.com/
Connect with us on …
Facebook: https://www.facebook.com/Abbott/
Twitter: https://twitter.com/abbottnews
Instagram: https://www.instagram.com/abbottglobal/
LinkedIn: https://www.linkedin.com/company/abbott/
YouTube: https://www.youtube.com/channel/UC346EX3v26ACsjLheHwHDg/featured
นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูวิธีอื่นๆWiki
ขอบคุณมากสำหรับการดูหัวข้อโพสต์ covid rapid test
