COVID-19 Nucleic Acid Detection

critical

No-Template Control Turns Yellow (Contamination)

The no-template control (NTC) reaction turns yellow after incubation at 65°C, indicating contamination with amplifiable target nucleic acid or positive control template.

💡 4 · ✓ 6

severe

Internal Control Fails Due to Sample pH Incompatibility

The internal control reaction fails to turn yellow after incubation at 65°C when spiked into sample, though it works in water, indicating sample matrix interference.

💡 4 · ✓ 5