1. Nasopharyngeal swab sample:
  • To collect nasopharyngeal specimens, carefully insert the sterile swab into the nostril that has most of the secretion under visual inspection. Rotating gently, squeeze the swab until resistance is less than an inch into the nostril at the turbinate level. Twist the swab against the nasal wall several times.n.

2. Optional oropharyngeal swab sample:e:
  • Slowly insert the swab from the oral cavity into the throat and remove the epidermis of the mucous membrane by rubbing the back of the throat or the facial almond several times. Sufficient antigen cannot be obtained through the upper respiratory tract. Collect the sample by letting the spherical trigger securely touch the part near the posterior wall of the pharynx to rub a part near the lower airway. In addition, nasopharyngeal swabs should not be used when collecting specimens as this may result in insufficient specimen collection.

3. Evaluation

  •  All specimens should be tested as soon as they are prepared. If necessary, they can be stored at 2-8C for up to 24 hours or at -20C for longer periods.n.