Patient's question:
Problem Description: (Female, 32 years old) The higher the non-invasive DNA trisomy 21 value, the fewer the chances of a reversal. The higher the non-invasive value, the worse it is. What is the meaning of the positive and negative values in non-invasive DNA? How to read this report?Doctor's answer:
Non-invasive DNA is a biological analysis value. The relative values may differ depending on the detection mechanism, but as long as the value falls within the range specified by the detection mechanism, it represents a normal result. It is unrelated to positive and negative values, as well as high and low values. For example, the risk assessment interval for a unit of non-invasive DNA is -3 to +3. As long as the value within this range is positive, it indicates a high risk. Values outside the range are negative, indicating a lower risk. It is perfectly fine to calculate and compare the risks between them.