While the NST is a valuable tool, it is not without limitations. A non-reactive result does not always indicate a problem; it may sometimes be due to the fetus being in a sleep cycle. Additionally, the test does not measure the strength of contractions or the fetal reserve. Hence, it is often used in conjunction with other tests like a Biophysical Profile (BPP) or a Contraction Stress Test (CST) for a more comprehensive assessment.
