What factors could contribute to mastitis in a breastfeeding mother? (Select all that apply.)

Choice A rationale
A negative pregnancy test is not the priority in this case. While it’s important to rule out pregnancy as a cause of abnormal uterine bleeding (AUB), it’s not the most critical finding.

Choice B rationale
A prothrombin time of 40 seconds is significantly prolonged, indicating a potential coagulation disorder. This could explain the abnormal uterine bleeding and should be prioritized due to the risk of significant blood loss.
Choice C rationale
A hemoglobin level of 10.1 g/dl is slightly low but within acceptable limits for many individuals. While it could indicate some degree of anemia possibly due to chronic blood loss, it’s not as immediately concerning as a coagulation disorder.
Choice D rationale
A serum cholesterol level of 140 mg/dl is within the normal range and is not directly related to AUB1.

Choice A rationale
Theca-lutein cysts are not commonly found in females of reproductive age. They are often associated with conditions that cause high levels of human chorionic gonadotropin, such as molar pregnancies.
Choice B rationale
Corpus luteum cysts can occur in women of reproductive age, but they do not typically regress with the menstrual cycle. Instead, they usually resolve after a few weeks if pregnancy does not occur.
Choice C rationale
Follicular cysts are commonly found in females of reproductive age and often regress with the menstrual cycle. They form when the follicle that normally releases an egg does not open to release the egg.

Choice D rationale
Polycystic ovarian syndrome is a condition characterized by multiple small cysts in the ovaries, but it does not typically cause cysts that regress with the menstrual cycle.