A nuchal translucency ultrasound (commonly called a ânuchal scanâ or âNT scanâ) is an ultrasound performed between 11.5 and 13 weeks 6 days gestation. It is usually part of an assessment called combined first trimester screening.he nuchal translucency is the fluid found at the back of your babyâs head and neck, just beneath the skin. The thickness of this fluid can be precisely measured and this is called the nuchal translucency (or NT) measurement.
Weather in Porto in September. The average maximum daytime temperature in Porto in September is a warm 24Â°C (75Â°F). There are usually 8 hours of bright sunshine each day, which represents 60% of the 12 hours of daylight. The average sea temperature in and around Porto in September is 18Â°C (64Â°F). Expect 62mm (2.4 inches) of rainfall across the whole of September with 8 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.
Porto, Portugal weather text for Sat 24 th February. The Porto, Portugal weather is going to be partly cloudy. Porto, Portugal visibility is going to be around 20 km i.e. 12 miles and an atmospheric pressure of 1007 mb. The daytime temperature is going to reach 15 Â°c and the temperature is going to dip to 9 Â°c at night.