Antepartum care (second trimester) Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 33-year-old woman, gravida 1 para 0, at 20 weeks of gestation comes to the office for her second-trimester prenatal care visit. When asked if she has any new symptoms, she states that she has developed substernal burning that occurs after eating. The sensation improves with standing and worsens when she lies flat. She has no nausea, vomiting, trouble swallowing, or coughing. She has not had similar symptoms in the past, before her pregnancy. She is taking a prenatal vitamin. She has no significant medical or surgical history. She has no history of STIs and is in a monogamous relationship with her partner. She does not drink alcohol or use recreational substances. She has no pets in the house. Temperature is 36.7 C (98.1 F), pulse is 92/min, respiratory rate is 16/min, and blood pressure is 130/80 mm Hg. BMI is 26 kg/m2. Baseline BMI was 22 kg/m2. Fetal heart rate is 155/min on Doppler ultrasound. Fundal height is appropriate for dates. Physical examination shows no abnormalities. Which of the following is most likely to be a significant cause of this patient’s symptoms?  

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