Table 2.

Concentration table of interfering substances.

Substances	Concentration	Result
Full blood	2.2%	Negative
Mucin	250 μg/mL	Negative
Guaifenesin	20 mg/ml	Negative
Ribavirin	10 mg/ml	Negative
(R)-(-)-Phenylephrine hydrochloride	200 mg/ml	Negative
Chlorpheniramine Maleate	25 mg/ml	Negative
Levofloxacin	20 mg/ml	Negative
Tobramycin	5 mg/ml	Negative
Lopinavir	20 mg/ml	Negative
Oseltamivir phosphate Ritonavir Peramivir Trihydrate Cephradine Zanamivir Flunisolide Fluticasone propionate Dexamethasone Mometasone Furoate Beclomethasone Triamcinolone acetonide Fluocinolone Acetonide Azithromycin Meropenem trihydrate Ceftriaxone Sodium Trihydrate Budesonide Arbidol hydrochloride HUMAN IFN-ALPHA A	20 mg/ml 2.5 mg/ml 0.2 mg/ml 20 mg/ml 20 mg/ml 5 mg/ml 15 mg/ml 10 mg/ml 10 mg/ml 2 mg/ml 2 mg/ml 10 mg/ml 20 mg/ml 5 mg/ml 25 mg/ml 40 mg/ml 10 mg/ml 0.2 mg/ml	Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative