Gastroenterology Quiz #14: Vitamin and Mineral Absorption

1. A 47-year-old man with a history of chronic alcoholism presents with symptoms of anemia. Laboratory tests reveal a macrocytic, megaloblastic anemia. This patient's anemia is most likely due to a deficiency in which of the following vitamins? 

Question 1 of 5

2. A 30-year-old woman presents with muscle weakness, bone pain, and frequent fractures. Laboratory findings include hypocalcemia. Which of the following vitamins is most likely deficient in this patient? 

Question 2 of 5

3. A 25-year-old male with a history of Crohn's disease presents with paresthesia and difficulty walking. MRI of the spine reveals degeneration of the posterior columns. Which of the following deficiencies is most likely responsible for these findings? 

Question 3 of 5

4. A 2-month-old exclusively breastfed infant presents with seizures. Laboratory tests reveal a low calcium level. Which of the following maternal vitamin deficiencies is most likely responsible for the infant's condition?

Question 4 of 5

5. A 55-year-old woman with a history of gastric bypass surgery presents with bruising and gum bleeding. Laboratory tests reveal a prolonged prothrombin time that corrects with vitamin K administration. Which of the following is the most likely cause of this patient's condition?

Question 5 of 5


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