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A 9-year-old boy is brought to the physician by his mother for a 1-day history of dark urine. He has no past medical history. Vitals are within normal limits. Physical …
HY USMLE Q #705 – Derm / Pharm / Immuno See Full Post
A 12-month-old boy is brought to the physician for a follow-up examination. He just completed a course of antibiotics for a pneumonia one week ago. He has three episodes of …
HY USMLE Q #700 – Immuno See Full Post
A 39-year-old woman comes to the physician for a 2-day history of an exquisitely painful sore on the inside of her lower lip. Vitals are within normal limits. She takes …
HY USMLE Q #684 – Ear, Nose, Throat See Full Post
A healthy 31-year-old woman comes to the physician for an immigration health examination. Physical examination is unremarkable. Serum studies show: Hepatitis A IgG antibody …
HY USMLE Q #671 – Annoying lab serology stuff See Full Post
A 3-year-old boy is brought to the physician for a 1-day history of fever and mouth sores. He has a 12-month history of similar episodes lasting 3 to 5 days …
HY USMLE Q #666 – Immuno See Full Post
A 14-year-old boy is brought to the physician by his mother for a health maintenance examination. He has a history of candidal skin infections since birth. The physical examination is …
HY USMLE Q #639 – Immuno See Full Post
A 15-year-old girl is scheduled to receive radiotherapy for a spinal tumor. The neoplastic cells of her tumor express T-lymphocyte receptor genes but do not express CD4 or CD8. Which …
HY USMLE Q #637 – Immuno See Full Post
A 49-year-old man comes to the physician for a one-week history of purpura over his lower extremities. The liver edge is palpable 4cm beneath the costal margin. Serum studies show …
HY USMLE Q #630 – Immuno See Full Post
A 16-year-old boy is brought to emergency after a motor vehicle accident. He has a fracture of his left femur. Closed reduction is performed. He also has intractable nosebleeding that …
HY USMLE Q #617 – Immunology See Full Post
A 41-year-old woman comes to the physician for a routine health maintenance examination. She has a 20-year history of multiple respiratory tract infections, including 4 pneumonias and 5 episodes of …
HY USMLE Q #605 – Immunology See Full Post