FAQsHomeFAQsHow should frozen PAXgene Blood DNA...How should frozen PAXgene Blood DNA Tubes (IVD) be thawed?Thaw PAXgene Blood DNA Tubes (IVD) in a wire rack at room temperature (18–25°C) for approximately 2 hours. Carefully invert the thawed PAXgene Blood DNA Tubes (IVD) 10 times.