Covid-19 Testing

Diagnostic tests and Antibody tests are the two types of COVID-19 tests. Of the two, the former detects active COVID-19 infection using a nasal or nasopharyngeal swab, whereas the latter detects a past infection with the help of blood. Diagnostic tests are further divided into Antigen tests like Rapid and Molecular tests like the RT-PCR, NAAT, LAMP test. One should get tested for COVID-19 if he/she has symptoms of COVID-19 or had close contact with an infected person, or engaged in activities without social distancing.

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What does CT (computed tomography) severity score mean?

Query: Hi doctor, I was tested positive for COVID-19 seven days back. I am having some mild symptoms. I am checking my oxygen levels using a pulse oximeter. I have a range of 90 to 100% for the past three days. I do not have any difficulty in breathing. I took a CT chest after six days. I am attaching it....  Read Full »


Dr. Zubayeralam

Family Physician, General Medicine Physician, General Practitioner, Pulmonologist, Internal Medicine Physician

Answer: Hi, Welcome to icliniq.com. I understand your concern. I have gone through the attached reports (attachment removed to protect patient identity). According to your HRCT (high resolution computed tomography) of chest and RT-PCR (reverse transcriptase-polymerase chain reaction) test results, you...  Read Full »

What investigations are needed in a suspected COVID-19 patient?

Query: Hi doctor,My mother is having fever and cold, slight cough for the last three days. Fever is coming every 10 hours and reducing with tablet Paracetamol. According to the local doctor's advice, we gave her capsule Doxt SL 100 mg twice daily and tablet Calpol for four days. Also, we gave her multivita...  Read Full »


Dr. Zubayeralam

Family Physician, General Medicine Physician, General Practitioner, Pulmonologist, Internal Medicine Physician

Answer: Hi, Welcome to icliniq.com. Thank you for the query. I can understand your concern. According to your statement, your mother has been suffering from fever, cough, or cold for the last three days. According to the X-ray report (attachment removed to protect the patient's identity), it seems normal...  Read Full »

How accurate are the COVID-19 RT-PCR and rapid tests?

Query: Hi doctor,About a month ago, I tested positive for COVID-19 in RT-PCR and rapid tests. I had a fever for less than a day of 37.5 degrees and some muscle ache. My wife also tested positive five days later in only the rapid test. She had hot flashes and headache as symptoms and a little nose block. Th...  Read Full »


Dr. Zubayeralam

Family Physician, General Medicine Physician, General Practitioner, Pulmonologist, Internal Medicine Physician

Answer: Hi, Welcome to icliniq.com. Thank you for the query. I can understand your concern. According to the statement, your wife has suffered from COVID-19 (coronavirus disease 2019) like signs and symptoms. But, all the investigations like RT-PCR (reverse transcription-polymerase chain reaction) and rap...  Read Full »

Who are indicated for a COVID-19 test?

Query: Hi doctor, I have throat pain for the last two days. My body temperature is 37.2 degrees, and my SpO2 is 97 to 98 percent. Should I take a COVID-19 test? I am taking the medicine Amoxicillin for throat pain. It is much better, but my temperature is 37.2 degrees. Is it a fever or not? Please let me ...  Read Full »


Dr. B Vageesh Padiyar

ENT Otolaryngologist

Answer: Hi, Welcome to icliniq.com. Yes, you must get the COVID-19 (coronavirus disease 2019) test done. You can either get the rapid antigen test or the RT-PCR (reverse transcription-polymerase chain reaction) done. Until the reports come, I suggest the following, 1. Tablet containing a combination of A...  Read Full »

Is RT-PCR test for COVID-19 needed if there is intermittent fever with no other symptoms?

Query: Hi doctor, My sister is 31 years old and is a homemaker. She has a fever for the past three days, intermittently for every five to six hours. Today we gave her blood samples for test. We have attached the test results. Kindly provide some medicine for the same.  Read Full »


Dr. Tanmai Yermal (jain)

Internal Medicine Physician, Cardiologist, General Medicine Physician

Answer: Hello, Welcome to icliniq.com. I went through your query for your sister. Can you send me some more details about her present symptoms? Is her fever high grade or low grade? Is she having any other symptoms like cough, body ache, tiredness, loss of smell and taste, loose motions, breathing dif...  Read Full »

What does the CT- chest scan value indicate in COVID-19 patients?

Query: Hi doctor,My friend is infected with COVID-19. He got his CT scan done, and I have his report from the lab. Since the information has all technical terms, I want to understand how severe his condition and case are. He will consult another doctor, who most probably will start steroids to control it f...  Read Full »


Dr. C Elanchezhian

General Medicine Physician, Internal Medicine Physician

Answer: Hi, Welcome to icliniq.com. CT (computed tomography) scan shows (attachments removed to protect the patient's identity) a lung involvement value of 16/25 which means there are blood clots in the lung field due to COVID-19 infection. There are three lobes in the right and two lobes in the left lung...  Read Full »

Why are the blood parameters still raised post COVID-19 infection?

Query: Hi doctor, I am attaching my mother's post-COVID-19 reports, around 25 days since her first symptom started. Please interpret them. She still has occasional fevers and is very weak. Her appetite is also less. Kindly suggest whether we have to be concerned about anything. Thanks.  Read Full »


Dr. Tanmai Yermal (jain)

Internal Medicine Physician, Cardiologist, General Medicine Physician

Answer: Hi, Welcome to icliniq.com. I went through your mother's reports (attachments removed to protect the patient's identity) and the brief history that you have described. Her reports are satisfactory except for some infection and raised CRP (c-reactive protein) and ferritin levels suggestive of recen...  Read Full »

Does COVID-19 increase all the blood parameters?

Query: Hi doctor, My husband, aged 40 years, tested positive for COVID-19 ten days ago. He had a high fever of up to 103 degrees till yesterday. He got his CT scan done after three days of the COVID-19 test. The CT scan value was 3/25. His CRP is 7.5 mg/L. He repeated blood tests after three days of CT sc...  Read Full »


Dr. Sugreev Singh

Internal Medicine Physician, General Medicine Physician

Answer: Hi, Welcome to icliniq.com. Thank you for writing, and I understand your concern. According to the symptoms, current treatment is sufficient, so please do not worry. You do not have to admit your husband because his oxygen saturation is good, and HRCT (high-resolution computed tomography) shows a ...  Read Full »

Even with less CT value, why does RT-PCR show positive results?

Query: Hi doctor, I was tested positive for COVID-19 in the RT-PCR test before 18 days. Only one day, fever was above 100 degrees, and after that, there was no fever. I took a capsule Doxy-1 L-Dr forte twice daily for five days, and tablet Limcee 500 mg twice daily, and a tablet Cobadex Czs once daily. I ...  Read Full »


Dr. N Ashok Viswanath

Infectious Diseases Specialist, Microbiologist, General Practitioner

Answer: Hello, Welcome to icliniq.com. I understand your query. Do not worry. Even after the illness is gone, the RT-PCR (reverse transcription-polymerase chain reaction) test for COVID-19 will be positive for many people. It is due to the presence of remnant non-replicative virus particles, which are no...  Read Full »

How can false-negative cases in the RT-PCR test for COVID-19 be ruled out?

Query: Hi doctor, I am experiencing COVID-19 symptoms like mild fever, cough, headache, body ache, and rashes in the throat for the past seven days. I have also sent you the reports of RT-PCR and HRCT of the chest. Can you please guide me?  Read Full »


Dr. Zubayeralam

Family Physician, General Medicine Physician, General Practitioner, Pulmonologist, Internal Medicine Physician

Answer: Hi, Welcome to icliniq.com. According to the report of RT-PCR (reverse transcription-polymerase chain reaction) for the COVID-19 (attachment removed to protect patient's identity), your results are negative. Though RT-PCR is the gold standard test for COVID-19, it may show false negative in true p...  Read Full »

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Disclaimer: All health Q&As published on this website are not intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek the advice from your physician or other qualified health-care providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website.