Can I take two nucleic acid tests within 24 hours?

Under normal circumstances, it is possible to undergo two nucleic acid tests within 24 hours. The detailed explanation is as follows:

Two nucleic acid tests within 24 hours may be conducted primarily because rapid and accurate screening is required in certain special situations. For example, in close contacts or high-risk individuals, viral replication in the body has a window period during which a single test might yield a false negative result due to low viral load. Repeating the test within a short timeframe increases the likelihood of detecting positive cases. Additionally, when individuals present symptoms such as fever or cough but initially test negative, or when there are urgent needs like travel or surgery, undergoing two tests within 24 hours can further confirm their health status. The testing process causes no significant harm to the body, so as long as the individual tolerates it well, repeated testing can be performed according to need.

If throat discomfort occurs after testing, drinking warm water can help relieve symptoms, and consuming excessively cold or hot foods should be avoided immediately afterward to prevent mucosal irritation. When going out, wear a mask properly, maintain a safe distance from others, and avoid crowded places. Practice frequent handwashing to maintain hand hygiene, and regularly ventilate indoor spaces. Maintain a balanced and nutritious diet, follow a regular sleep schedule, and engage in moderate exercise to strengthen immunity and reduce the risk of infection.