Presentation:  Early Pregnancy Management: Complex Cases
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1. Even when the last menstrual period (LMP) is known, why might the visible embryonic age on ultrasound differ from the calculated gestational age?

a. Variation in the timing of ovulation and fertilization

b. Inaccurate patient recall of LMP

c. Delay in implantation caused by embryo abnormalities

2. Pregnancy of unknown location (PUL) is a term used to describe the clinical scenario in which a patient with a positive pregnancy test has a transvaginal ultrasound that shows neither an intrauterine pregnancy nor an ectopic pregnancy. Which statement about pregnancy of unknown location (PUL) is true?

a. It is a final diagnosis

b. Most cases are ectopic pregnancies

c. It is a transient state, with many resolving spontaneously

d. Requires immediate methotrexate treatment