Ultrasound: Pelvic
Background
Definite IUP = gestational sac containing yolk sac
- Occurs ~5.5th week
- B-HCG below Discriminatory Zone = <1,500-3,000 mIU/ml
- Consider Transabd US for IUP: >6000 mIU/ml
Endometrial mantle
- normal size > 8 mm
Fetal Heart Rate
- normal 120-160
- Use M-mode to calculate
Diagnostic Algorithm
See Also
Source
- Sonoguide
- Barnhart KT. Ectopic Pregnancy [clinical practice]. N Engl J Med. 2009;361(4):379-387.
