Test Detail
Overview
Interpreting Results

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Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Covid Antibody Test-CLIA

(Covid 19)
ADD TO CART
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. Current Covid-19 Positive Patients (within the first 21 days) SHOULD NOT get this test done. Covid-19 Positive Patients should ONLY get this test done after 21 days of being in quarantine / strict isolation. If you are having Influenza-like illness symptoms such as fever, sore throat, runny nose, cough, headaches, and fatigue then kindly do not go for this test. This test is not meant for diagnosis but only for surveillance purposes. It would not indicate the present infection. It can only tell if a person has had a recent or prior COVID-19 infection.

Overview


What is Covid 19?

Chemiluminescence immunoassay (CLIA) is a technique that makes use of the emission of electromagnetic radiation caused by a chemical reaction to produce light. It is intended for the detection of antibodies to SARS‑CoV‑2 (the virus that causes COVID-19) in human serum and plasma. The test serves as an aid in identifying people with an adaptive immune response to SARS‑CoV‑2, indicating recent or prior infection.

Why is Covid 19 done?

Current Covid-19 Positive Patients (within the first 21 days) SHOULD NOT get this test done. Covid-19 Positive Patients should ONLY get this test done after 21 days of being in quarantine / strict isolation. If you are having Influenza-like illness symptoms such as fever, sore throat, runny nose, cough, headaches, and fatigue then kindly do not go for this test. 

This test is not meant for diagnosis but only for surveillance purposes. It would not indicate the present infection. It can only tell if a person has had a prior COVID-19 infection.


What does Covid 19 Measure?

This test involves taking a sample of your blood. In this procedure, a phlebotomist will cleanse your arm with an antiseptic. Then, a band is tied around your arm to create pressure and cause your veins to swell with blood. Then, a needle is placed in one of your veins to draw a small sample of blood. This procedure is usually painless, but your arm may hurt a little after the procedure. In case the pain persists, apply a cold pack to the affected area. From the safety point of view of the patient, as well as phlebotomists, appropriate safety measures are taken during blood collection.



Interpreting Covid 19 results


Interpretations

What are the chances of false test results due to cross-reactivity?

  1. Cross-reactivity of Anti COVID ECLIA/ELISA assays was studied with a comparison of COVID 19 infected results with non-coronavirus strain HKU1, NL63, 229E, or OC43 strains.

  2.  Following results (assay specificity & cross-reactivity) were obtained: 

Technology

Sample set Count

Specificity (%)

ECLIA-CATC

40

99.65-99.91%

ELISA-CAGE

85

100.00 %


NABL

ISO

Thyrocare Technologies Limited is India's first and most advanced Totally Automated Laboratory having its strong presence in more than 2000 cities / towns in India and internationally. Thyrocare is India's first fully automated diagnostic laboratory with a focus on providing quality at affordable costs to laboratories and hospitals in India and other countries. Thyrocare operates with a Centralized Processing Laboratory (CPL) in Mumbai - India for esoteric tests; and Regional Processing...
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