I tested positive for antigens, what should I do? – CVBJ



The at 13:11 CET

Unstoppable. This is how the sixth wave of the coronavirus for our country. Health reported the highest number of infections last Friday: 33,359 positive cases. In addition, there were 41 deaths from SARS-CoV-2.

The cumulative incidence is also increasing at an uncontrollable rate. With 511 cases per 100,000 inhabitants, Spain is at very high risk. The Omicron variant, according to the World Health Organization, spreads faster, with cases doubling in 1.5 to 3 days.

With the Christmas around the corner, lunches and dinners with family and friends are in serious jeopardy. Many people turn to drugstore antigen testing to celebrate the holidays in a “safe” way.

However, the stock of these self-diagnostic tests could be defined as scarce, although the shortage in most establishments, which have already displayed the “test without antigen & rdquor; ” sign.

How do antigen tests work for self-diagnosis?

As the Spanish Agency for Medicines and Health Products (AEMPS) points out, “it is important to take into account that the self-diagnostic tests will not be taken into account for the confirmation diagnosis of an active infection neither in people with symptoms nor in asymptomatic people & rdquor ;.

Positive cases made with an antigen test will be considered “suspicious”. and they must be confirmed at a health center with an active infection diagnostic test (PDIA).

In Spain, antigenic tests from around twenty different manufacturers are marketed for the collection of nasal and / or salivary samples.

Before undergoing the test, it is essential to carefully read the instructions for use which specifies that “should be done within the first 7 days after infection or in the first 5 days after symptom onset, when viral load is at its peak & rdquor ;.

The use of antigen tests with a minimum specificity of 97% and a sensitivity of 90% is recommended. And although this is a safe test, it does not offer reliability similar to PCR, so “you must take into account the possibility of obtaining false positive and false negative results, if the test is performed without showing symptoms or when the viral load is low.”

What to consider for the test to be successful

In addition to following the manufacturer’s instructions for use, perform the test immediately after collecting the sample. It should be taken into account that the lack of experience in relation to health personnel can affect the performance of this type of self-diagnostic tests.

The easiest way to ensure that the test was performed correctly is that at the end, whatever the result, the control line (C) should always be visible.

How do I know if the result is negative & mldr; or positive?

As this is a coronavirus self-diagnostic test for the general population, without previous experience knowing the result is very easy and fast. If positive, two colored horizontal lines appear: the test line (T) and the control line ©. On the other hand, if it is negative, only a control line appears (C).

If the result is not clear, because you cannot see the two horizontal lines, the test should be repeated and / or seek advice from professional pharmacists.

I am positive: what should I do?

If the result is positive, whether or not you have symptoms of COVID-19:

Immediately start your self-isolation and notify your close contacts. Contact your health center.

As AEMPS reminds us, “self-diagnostic tests will not be considered for the confirmatory diagnosis of an active infection neither in people presenting symptoms nor in asymptomatic patients”. It must therefore be confirmed by a PCR test in a healthcare establishment.

I am negative: I don’t have COVID?

Although the test only shows the control line (C) and is a priori negative, “it does not exclude the possibility of infection. Sometimes the viral load is too low to be detected & rdquor ;.

Therefore, you should not relax protective measures, such as the use of a mask, hand hygiene and an interpersonal distance of 2 meters.

What is close contact?

You are in close contact if you have been maskless for more than 15 minutes with the Covid-positive person within 2 meters.

If you live or sleep in the same place, you are also in close contact, as if you had eaten for more than 15 minutes at a short distance.

However, greeting, sharing an elevator, using the same facilities such as a bathroom or cafeteria, and even having occasional physical contact doesn’t make you a close contact.


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