Coronavirus Signs And Symptoms Test

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The pandemic has rotten the roots of life. The streets where once the roars of laughter were echoed, now silence yelled there. The busy roads were once symbolizing Life. Now they symbolize a deep silence of fear. Humans are repelling each other to avoid contact. No daughter can hug his father and no mother can allow his infant baby to sleep in her arms. Terror is in the air. The biggest cause of the fearful environment is to test every single person for coronavirus signs and symptoms. 

Coronavirus Signs and Symptoms Test Step By Step

According to new research, the previous type of coronavirus; SARS-CoV-2 caused the COVID-19. To control the further spread of the virus, it is mandatory to manage a large ratio of tests per day. To test coronavirus signs and symptoms, one has to collect the swab sample for further analysis. The test performed can be molecular tests or serological tests. Health care professionals are prioritizing the tests. First comes the people with severe signs of virus to find better coronavirus prevention and treatment solution. 

Here you will get the answers of your questions.  Is Mass Testing Possible? and What is the accuracy rate of Coronavirus Mass Test? 

MOLECULAR TESTS / NAAT TESTS

To look for coronavirus signs and symptoms of an active infection in a human body, molecular tests are taking places to perform. WHO recommended NAAT (Nucleic Acid Amplification Test). It helps to detect the SARS-CoV-2 virus. 

These tests will not help with the disease history of a coronavirus patient but can diagnose current coronavirus signs and symptoms cases. Somewhere within 3-4 hours, results are available. Other countries are managing to deliver results in several days.

The steps involved carrying this testing method are as follows:

  • The sample has taken from the posterior throat with a cotton swab.  Then it has sent to the laboratory for further testing. In the case of NAAT, naso-pharyngeal swab techniques are using to collect a sample from the upper respiratory tract. A mixture of mucus and saliva has collected from the throat behind the nose.
  • To detect the coronavirus signs and symptoms,  a Polymerase chain reaction test has to apply to the sample. In case of NAAT, real-time reverse-transcription polymerase chain reaction has to employ the test SARS-CoV-2.
  • If two specific SARS-CoV-2 genes are identified in a sample, a confirmed case of COVID-19 has diagnosed. Inconclusive results are determining if the PCR test identified only one of these genes. 

How is the swab collected? 

The health professionals insert a six inches long swab (like a long Q-tip) into the cavity (lies between nose and mouth – nasopharyngeal swab) for 15 seconds. The swab is rotated many times so that mucus and saliva could be stuck in a definite volume. Material is collected from both nasal openings, just to make sure that enough material is collected. After the material is collected, the swab is put in a container. And has sent to a laboratory for further tests for coronavirus signs and symptoms. 

Specimen Requirements 

  • COVID-19 Test Requisition 

Specimen Type: NPS (nasopharyngeal swab) collected from the upper respiratory tract

Minimum volume required: NPS in 1 ml UTM (universal transport media) 

Collection Kit Details: Virus Respiratory Kit 

  • COVID-19 Test Requisition

Specimen Type: Viral throat swab collected in UTM

Minimum Volume Required: Swab in 1 ml UTM 

Collection Kit Details: Virus Culture Kit 

  • COVID-19 Test Requisition

Specimen Type: Sputum, BAL, pleural fluid, bronchial wash, lung tissues collected from the lower respiratory tract 

Minimum Volume Required: 1.0 ml 

Collection Kit Details: Tuberculosis Kit 

Serological Tests For Coronavirus Signs and Symptoms

The serological tests can help to detect antibodies produced against the virus. The recovered patients of COVID-19 too contain these antibodies which are in our body blood cells and tissues. To carry out serological tests, one need to collect the blood samples. The  serological tests has not proved their accuracy yet. It is not sure about the current infectious stage. It can only interpret the previous exposure to the virus. 

Coronavirus signs and symptoms with mild or zero could be diagnosed by serological tests. The CDC is recently working on the developmental procedures for a serological test for SARS-CoV-2. For this reason, blood samples of corona patients are being collected. The blood samples are taken after 21 days have passed since the first symptom appeared. 

A biotechnology company, Cellex conducted a serological test under the approval of US Food and Drug Administration. The company claimed that within 15 minutes, results can be obtained. 

Who Should Get tested? 

Every person does not need to be tested for the coronavirus signs and symptoms. It is because healthcare professionals are treating the symptoms resembling cold and flu. Even at home, without the aid of doctors and any medical attention, one can be recovered. 

If someone is an adult or a pregnant woman or any child is encountering severe coronavirus symptoms, must-visit doctors. It is compulsory to test them first because they are more prone to virus attacks. CDC also made this statement that not every person needs to go for a test. 

If you remained in contact with COVID-19 patients or in communities with widespread corona, then consult the doctor. It’s the decision of your doctor to conduct your tests or not. 

Primary, tests of hospitalized or severely ill pet patients had conducted. Being affected by diseases like coronary heart disease, diabetes mellitus, chronic respiratory disease or any cancer; are at higher risk of the coronavirus infection. Their tests are in priority. 

Accuracy of Coronavirus Signs and Symptoms Tests 

The testing methods are new and thus accuracy concerns are more challenging. In the case of Polymerase chain reactions, results could be falsely negative due to failure in the identification of SARS-CoV-2. These failures could happen because of human errors or troubles with the procedure. Performing tests too early or late can results in to be a false or negative. In the case of influenza, the test accuracy rate is 50-70%. 

Mass Testing Feasibility 

Not every country is capable to conduct mass tests. There are not enough resources to test many samples. The credit of mass testing goes to Germany and South Korea. They claimed that they have the capacity to conduct 500,000 tests per week. The feasibility ratio has decreased in the undeveloped and low-income countries. 

Conclusion 

NAAT and Serological Testing methods are in practices with the hospitals to detect corona victims. People are in deep worry about their life expectancy.  So getting cautious even at mild symptoms. They ran after the health care providers to test them. But it is not possible to test every person. Individuals should try to handle their mild symptoms at home following quarantine instructions. 

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