A patient's initial plasma hCG level is 2250 IU/L, but 48 hours later it is 3375 IU/L, and another 48 hours later it is 4500 IU/L.These data provide laboratory evidence of which type of pregnancy?

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In a healthy pregnancy, hCG levels become detectable in maternal serum within a week following conception and double every 48 hours.In an ectopic pregnancy, the time it takes for the hCG to double is prolonged.Patients with gestational trophoblastic disease, such as a molar pregnancy, usually have marked elevation of hCG, frequently exceeding 100,000 IU/L.

A Patient's Initial Plasma HCG Level Is 2250 IU/L, but 48