Abstract: The invention relates to standard reaction areas containing complex, storage-stable reagent formulations and thus suited to acceptance and, if need be, storage of complex liquid patient samples, thereafter to be examined for the existence of pathogenic nucleic acids (bacteria, viruses etc.). Preferably, the reaction areas manifest complex, storage-stable reagent formulations permitting detection and quantitative isolation of viral and bacterial nucleic acids in a test kit, even in the existence of extremely low copy numbers from a complex biological sample. At the same time, a simple archiving system for the clinically relevant nucleic acids can be provided. Thanks to the use of said reaction areas containing the complex, storage-stable reagent formulations, necessary process steps of sample handling are drastically reduced and thus potential risks of infection and risks of contamination distinctly lowered.