É

Auxiliar

 positiva  cando

Conjunció subordinada

  os

Determinador

  síntomas

substantiu

 descritos  previamente

Adverbi

  aparecen

Verb

  no

 primeiros  trinta

30

Numeral

 segundos  do

 test.

It is positive when the previously described symptoms appear within the first thirty seconds of the test.

It is positive when the previously described symptoms appear within the first thirty seconds of the test.