A 64-year-old man is evaluated in the emergency department for acute onset of vision loss in the left eye, which began 1 hour ago. He can barely see his own hands in front of his eye. He has no eye pain. Following a physical exam, eye exam, and lab
A 55-year-old man is evaluated for a 6-week history of blisters on his hands. The blisters are tender, break easily after they develop, and occur in different regions on the backs of his hands. Medical history is notable for alcoholic liver disease.
A 28-year-old woman is evaluated in the emergency department for a 1-week history of progressive headache associated with nausea and vomiting. Medical history is significant for HIV infection. She is nonadherent to her antiretroviral therapy regimen
Tenofovir, emtricitabine, and raltegravir are used to treat HIV infection. This drug combination would be an appropriate choice for HIV-related PAN, but the patient's HIV test is negative and
Stool studies for enteric pathogens may identify a precipitant of toxic megacolon but require a minimum of 24 hours before test results are received.
A 31-year-old woman is evaluated for a 5-day history of a nonpainful cutaneous lesion on the back of her left hand. She works as a packer in a parcel distribution center. She does not recall injury to this area and reports no unusual employment or
Which of the following is the most appropriate diagnostic test to perform next in this patient?
A 27-year-old man is evaluated for the acute onset of fever, chills, body aches, and dry cough that began last evening after returning home from trimming timber at a saw mill. He has similar symptoms that have been occurring two to three times a
A 55-year-old man is evaluated for a 1-day history of seeing flashing lights, “squiggly” lines, and floating objects in his left eye followed by loss of vision at the outer periphery of the eye shortly after having breakfast this morning. He now
A radiograph of the hand is shown. Which of the following is the most appropriate diagnostic test to perform next? ... Measurement of transferrin saturation is the most appropriate diagnostic test to perform next in this patient.