A 24-year-old woman, gravida 1 para 1, comes to the office for postpartum follow-up 2 weeks after a term vaginal delivery. Her baby is doing well, but she has not yet lactated. She feels excessive fatigue and has had significant weight loss, nausea, loss of appetite, and postural dizziness. She has no headaches, visual problems, cold intolerance, constipation, or polyuria. On examination, she appears fatigued and has mild pallor. Morning laboratory tests are drawn. Which of the following pathologic processes is most likely responsible for this patient's symptoms?
Select any text to highlight it or add a note — your annotations stay with the question.
Select an answer to reveal the correct choice and explanation.Tip: press A–E to answer.