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Test Rapido Covid – Caja 30 Test

  • OnSite COVID-19 IgG/IgM Rapid TestCat # R0180C
    • The OnSite COVID-19 IgG/IgM Rapid Test is designed for initial screening by detecting anti-SARS-CoV-2 IgG and IgM antibodies in either human serum, plasma or whole blood within 15 minutes.
    • This test is easy-to-use, requires only minimally skilled personnel with basic equipment needs.
    • The OnSite COVID-19 IgG/IgM Rapid Test has 97.1% sensitivity and 97.8% specificity making it one of the most effective screening tests for COVID-19.


  • ENTREGA 24-48H 





47 disponibles


47 disponibles

Test Rapido Covid-19

Window for Detection of SARS-COV-2 Infection

SARS-COV-2 is a new virus, emergent to humans. Since its first report in December 2019, we have gained tremendous understanding of its transmission, virus replication in the human body, immune response, pathogenesis, clinical symptoms, diagnosis, and treatment.

Nandini Sethuraman et al1 concluded a most comprehensive and sound laboratory testing window with different technologies based on published studies.

The illustration clearly promotes that detection sensitivity for SARS-COV-2 antibodies or NTA varies significantly from the time the specimens are taken.  Often, we have seen specimens drawn far too early (i.e., less than two weeks after the onset of symptom) for a body’s immune response to have released the minimum levels of antibodies that an antibody test would need to detect infection.

A review article suggests that over the four days of infection before the typical time of symptom onset (day five), the probability of a PCR false-negative result in an infected person was 100% on day one after infection before onset, and 68% on day four after infection before onset.2  On the day of symptom onset, the median false-negative rate was 38%. This decreased to 20% three days after symptom onset, then began to increase again, from 21% on day nine to 66% on day 21.

CTK’s OnSite COVID-19 IgG/IgM Rapid Test was evaluated by The Doherty Institute’s study, “Post-market validation of three serological assays for COVID-19,” showing a curve in IgM and IgG detection similar to the one illustrated above.3 The data showed an increase in IgM detection up to 20 days post-symptom onset, followed by a decrease, while IgG performance showed detection increase for up to 30 days.

In summary, the time of testing relative to the onset of symptoms is critical to achieve the highest detection rate for any test.

OnSite COVID-19 IgG/IgM Rapid Test Performance Over Time, after Onset of Symptoms

The OnSite COVID-19 IgG/IgM is designed to specifically detect IgG or IgM antibodies in human serum, plasma, and whole blood, as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior SARS-COV-2 infection. The result does not provide answers to whether the individual has an acute infection.  A confirmative test is required to diagnose acute infection.

Both in-house and outside evaluation studies of the OnSite COVID-19 IgG/IgM Rapid Test was conducted in multiple countries, and they consistently show high antibody detection rate on specimens collected after 2-3 weeks from the first demonstration of symptoms (see table 1 below).


Table 1: Summary of results of multiple evaluation studies in different countries

These results are in agreement with USA FDA latest guidelines on the application of serological tests: identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection.

The OnSite COVID-19 IgG/IgM Rapid Test features:

1) a low complicity test method, that can be used by health care providers with minimal training,

2) no need for instruments or electricity,

3) results in 10-15 minutes,

4) multiple specimen types, including fingertip capillary blood.

Therefore, this test is suited for the following scenarios:

  • Testing at clinics and labs for individual screening of patients who are suspected of COVID-19 exposure, or have shown symptoms
  • Employee testing before returning to work
  • Screening for professionals with close proximity to coworkers and customers, such as airline, restaurant, cruise or sea freight workers, or military personnel.
  • Education institutions testing faculty, staff, and students before returning to the classroom.



  1. Sethuraman N, Jeremiah SS, Ryo A. Interpreting Diagnostic Tests for SARS-CoV-2. JAMA. Published online May 06, 2020. doi:10.1001/jama.2020.8259
  2. Tollanes M.C, Bakken Kran A, Abildsnes E, Jenum P.A, Breivik A.C. and Sandberg S. Evaluation of eleven rapid tests for detection of antibodies against SARS-CoV-2. Norwegian Organization for Quality Improvement of Laboratory Examinations (Noklus). Published online April 24, 2020. https://www.noklus.no/media/ffkpk53g/report_1_covid19_rapidtests_noklus_2020.pdf
  3. Bond K, Nicholson S, Hoang T, Catton M, Howden B and Williamson D. Post-market validation of three serological assays for COVID-19. Doherty Institute. Published

Protocolo de Uso

Test Rapid

Certificado CE

Test Rapid

Enlaces a las diferentes publicaciones donde se indica la calidad de la marca CTK Biotech en cuanto a los resultados de sensibilidad, segun los informes CTB Biotech es la 3ª empresa en España en calidad de resultados:




Este es un producto de catalogado como de “Diagnóstico In Vitro”, no es un producto de “Autodiagnóstico”, por tanto no puede ser vendido a personar particulares, sino a Hospitales, Centros de Salud, Clínicas, Laboratorios, Residencias de Ancianos, Servicios Públicos, Mutuas de Prevención de Riesgos o Empresas, siempre que se cumplan las directrices establecidas por la orden Ministerial publicada en el BOE de 14 de abril de 2020, en el que se establece que “se limita la realización de las pruebas diagnósticas para la detección del COVID-19 a aquellos casos en los que exista una prescripción previa por un facultativo y se ajusten a criterios establecidos por la autoridad sanitaria competente”

En cumplimiento de las directrices

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