【单选题】A 35-year-old woman presents to her family physician’s office with fatigue of at least 3 months’ duration. Her only explanation is that keeping up with her twin 4-year-olds really tires her out, and s...
【简答题】A.The woman is too big a fuss about her condition. B.Fatigue is a typical symptom of lack of exercise. C.The woman should spend more time outdoors. D.People tend to work longer hours with artif...
【单选题】A 25-year-old woman presents with chronic fatigue. A series of blood tests is ordered, and the results suggest that her red blood cell count is low because of iron-deficiency anemia. Such a deficiency...
A.
Her decrease in Fe – S centers is impairing the transfer of electrons in the ETC.
B.
She is not producing enough H2O in the electron-transport chain,leading to dehydration, which has resulted in fatigue.