Podcast
Questions and Answers
At what level should the transducer be angled to include the cerebellum and occipital bone when measuring the nuchal fold?
At what level should the transducer be angled to include the cerebellum and occipital bone when measuring the nuchal fold?
- Medially
- Caudally (correct)
- Cranially
- Laterally
What is the correct plane to view the facial profile for the nasal bone?
What is the correct plane to view the facial profile for the nasal bone?
- Transverse plane
- Coronal plane
- Sagittal plane (correct)
- Axial plane
What is the recommended angle of insonation when evaluating the facial profile for the nasal bone?
What is the recommended angle of insonation when evaluating the facial profile for the nasal bone?
- Any angle is acceptable
- 0 degrees or 180 degrees
- 90 degrees
- 45 degrees or 135 degrees (correct)
What may occur if the angle of insonation is less than 45 degrees or greater than 135 degrees when evaluating the facial profile for the nasal bone?
What may occur if the angle of insonation is less than 45 degrees or greater than 135 degrees when evaluating the facial profile for the nasal bone?
How should the nuchal fold be measured?
How should the nuchal fold be measured?
Study Notes
Nuchal Fold Measurement
- Measured between 15 and 21 weeks of gestation
- Obtained by getting a transverse plane of the fetal head at the level of the biparietal diameter
- Transducer angled caudally to include cerebellum and occipital bone
- Measured by placing calipers on the outer skull and outer skin edge
Nasal Bone Evaluation
- Correct technique and angle of insonation is crucial
- Profile viewed in the midsagittal plane
- Angle of insonation should be close to 45 degrees or 135 degrees
- Angles less than 45 degrees or greater than 135 degrees may artificially make the nasal bone appear absent
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Description
This quiz assesses knowledge on how to measure nuchal fold and evaluate facial profile during fetal ultrasound examination. It covers techniques and angles of insonation for accurate measurements.
