Questões de USMLE

A 72-year-old man presents with progressive nocturia (×4 per night) and a diminished urinary stream over 3 years. He reports incomplete emptying but denies dysuria, hematuria, or f…

A 4-week-old male infant presents to the pediatrician with a firm, painless midline neck mass that the parents first noticed 2 weeks ago. On examination, the mass is located betwee…

A 3-week-old infant presents to the pediatric clinic with a mother concerned about a painless, firm midline neck mass. On examination, the mass is located between the hyoid bone an…

After an amniocentesis, a 29-year-old woman who is carrying twins learns that one fetus has XY chromosomes and the other has XX chromosomes. At 37 weeks' gestation, the female deli…

A 6-month-old girl is brought to the emergency department with fever (38.5°C), productive cough, and tachypnea (48 breaths/min). Her parents report recurrent episodes of sinusitis …

A pregnant female comes to her physician with questions about the effect that ingested substances may have on her unborn child. The physician explains that large molecules do not p…

A 4-year-old boy presents with recurrent lower respiratory tract infections and a chronic productive cough with foul-smelling sputum. Vital signs show temperature 38.2°C, heart rat…

A 2-month-old male presents with a firm, non-tender midline sacrococcygeal mass noted on routine physical examination. The mass is located just superior to the coccyx. Imaging show…

A 5-year-old boy is brought to clinic by his parents for evaluation of developmental concerns. He was born with severe micrognathia and glossoptosis, which necessitated emergency t…

An autopsy is performed on a man who died of an unknown cause. The pathologist discovers that the deceased has a small atrial septal defect. The defect is seen in the portion of th…

A 43-year-old woman undergoes bronchoscopy for evaluation of chronic cough. A biopsy is taken from the tracheal mucosa. The pathologist notes an epithelial lining with nuclei at di…

A 67-year-old man presents with painless gross hematuria. Cystoscopy reveals a papillary bladder lesion, and biopsy is obtained from adjacent normal bladder mucosa. The normal epit…

An intravenous pyelogram is performed on a patient to evaluate the function and structure of her kidneys. Examination of the resulting radiographs reveals that the left kidney is n…

A 4-day-old male is brought to the pediatric clinic because of breathing difficulties and poor feeding. He coughs, chokes, and spits up milk very soon after beginning to suckle. Ph…

A 16-year-old girl presents to dermatology with a 6-month history of facial acne consisting of comedones, inflammatory papules, and pustules distributed across her forehead, cheeks…

A 54-year-old man comes to the clinic because of 4 months of progressive difficulty swallowing solid foods. He has a 30 pack-year smoking history and drinks alcohol daily. Upper en…

A newborn male is found to have urethral openings along the ventral surface of the penis. The physician explains to the parents that the bilateral structures that should have fused…

A 46-year-old man with a 15-year history of heavy alcohol use presents with acute pancreatitis (BP 128/82, HR 102, RR 20, Temp 38.2°C). Serum lipase is elevated at 850 U/L; abdomin…

A 2-day-old male newborn presents with persistent nonbilious vomiting after each feeding. Vital signs show HR 155 bpm, RR 42/min, temp 37.2°C, BP 65/40 mmHg. Upper GI imaging revea…

A 71-year-old man presents with urinary hesitancy, weak urinary stream, and nocturia ×3 per night. Vital signs: BP 138/82 mmHg, HR 76/min, RR 14/min, Temp 37.2°C. Digital rectal ex…

A cyanotic newborn presents with severe respiratory distress and tachycardia (HR 165/min). Chest X-ray demonstrates cardiomegaly with increased pulmonary vascular markings. Echocar…

A 55-year-old man with cirrhosis presents with jaundice, ascites, and hepatic encephalopathy. Vital signs show BP 110/70, HR 92, RR 18, temp 37°C, SpO2 98%. Laboratory studies reve…

A patient comes to the physician for a prenatal visit. Examination reveals that her uterus is considerably larger than her gestational age would predict. An ultrasound examination …

A 42-year-old woman presents to otolaryngology with progressive bilateral low-frequency sensorineural hearing loss over the past 5 years. She reports a family history of similar he…