NCEMI eTools

Ectopic pregnancy risk

Derivation and validation of a prediction model based on a population of 915 total patients.
7.6% had ectopic pregnancy, and just 1.8% lost to follow-up.

Score: 0 Low risk (Under 1% risk of ectopic pregnancy)
Assessment
<1	Low risk (Under 1% risk of ectopic pregnancy)
1	Intermediate risk (7% risk of ectopic pregnancy)
>1	High risk (29% risk of ectopic pregnancy)

Peritoneal signs or definite cervical motion tenderness?

	Yes 2 points
	No 0 points

Pain or tenderness, other than midline cramping, plus absence of fetal heart tones, and absence of tissue visible at the cervical os?

	Yes 1 points
	No 0 points

Calculate