“My NT scan showed a thickness of 3 to 5 mm. Does it indicate a high risk pregnancy?”
I recently underwent a NT scan which showed a thickness of 3 to 5 mm. Does this mean it is a case of high risk pregnancy? My OB-GYN is waiting until my next appointment to see if this thickness is still there.
3 Answers
Certainly needs monitoring - specialist will advise
Certainly. NT > than 2.5 needs further investigation; NIPT is the next step. It’s a noninvasive test and quite accurate, 99.9%.
Dr. JERI
Dr. JERI
The outer limit of the normal thickness and identity scan is about 2.5 mm. Meanwhile, there are many jokers in this context. One is of course the proficiency of your practitioner, another is the accuracy of the apparatus, and last but not least, the condition of the fetus. If it is not too late, I definitely suggest getting the scan done again, this time with a proficient clinician. In general, a measurement of nuchal translucency above 3 mm carries an increased risk of various genetic abnormalities. A good condition will always advise you as to the expediency of a chorionic villus sampling, which can give an accurate picture. Do not hesitate to ask if these bits of information give rise to more questions.
