A 45-year-old woman presents with a several-month history of…

A 45-year-old woman presents with a several-month history of progressive fatigue, muscle weakness, unintentional weight loss of 15 pounds, and episodes of dizziness upon standing. On examination, you note diffuse hyperpigmentation of her skin, particularly in the palmar creases and buccal mucosa, and a blood pressure of 90/60 mmHg. You suspect primary adrenal insufficiency. Which of the following laboratory panels would be the most appropriate initial investigation to order?

A 68-year-old male presents with progressive fatigue, parest…

A 68-year-old male presents with progressive fatigue, paresthesias in his lower extremities, and a sore tongue for the past few months. His lab work reveals a low hemoglobin level, and subsequent tests confirm a diagnosis of pernicious anemia. The peripheral blood smear analysis for this patient is most likely to describe the red blood cells as:

This final exam is 100 multiple-choice questions over all th…

This final exam is 100 multiple-choice questions over all the material covered this semester. You will have 80 minutes to complete it. This exam must be completed in a single sitting, and you will not be able to save and return to it at another time. If you are familiar with the material, this will be ample time to complete the exam.

Walking through the vitamin supplement aisle, you decide to…

Walking through the vitamin supplement aisle, you decide to look at the % Daily Value for one of the supplement containers. You notice that several vitamins contain over 100% of the recommended daily allowance. This is most concerning for which of the following vitamins? (Hint: Which vitamin can be stored in cells over time)