Question bank

You are called to evaluate an 18-month-old infant who was found playing with a medication bottle. The top was open, and many of the pills were on the floor. The prescription was for a tricyclic antidepressant used by the patient's older brother. On physical examination, the boy appears clumsy but awake and flushed. He has a heart rate of 150 beats/min, a respiratory rate of 28 breaths/min, and dilated pupils. He is breathing easily and has strong pulses. Of the following, the MOST important next step in this patient's management is

A 7-year-old girl presents to your clinic with a 2- to 3-day history of a nonproductive cough, malaise, and temperature to 101°F (38.3°C). On physical examination, you note that the girl does not appear ill and are surprised to hear widespread crackles in the lungs bilaterally. Chest radiography demonstrates bilateral diffuse infiltrates. Of the following, the MOST appropriate antimicrobial agent to treat this girl's infection is:

During a total thyroidectomy, the lead surgeon tells you that he must first identify and then preserve a nerve that is situated near the thyroid gland. He also tells you that this nerve is at risk of injury during thyroidectomy procedures. Which of the following nerves is he referring to?

A 4-year-old boy presents for a health supervision visit, and in the course of the visit, his mother discloses that ever since the birth of his 2-month-old sister, the boy has resumed bedwetting, which had ceased to be a regular occurrence. He is dry during the day and has no stool incontinence. Past medical history reveals that the child has never been hospitalized, had a negative urine culture at age 9 months associated with a fever, and was toilet trained completely at age 3, with only episodic bedwetting about once every month. Physical examination reveals a happy, playful child whose growth and developmental parameters are normal for age and who has a circumcised penis and normal findings on scrotal examination. Urinalysis of a specimen obtained via clean catch urination shows normal results. Of the following, the next BEST step in the management of this boy is to

A 16-year-old boy comes to your office with a 6-month history of abdominal cramping. He states that the cramps immediately precede a bowel movement and that passage of stool results in pain relief. There is no clear association with any type of food group. The patient's bowel movements are variable, ranging from hard stools every other day to loose stools several times a day. Weight and height are normal, as are physical examination findings and measurements of stool guaiac, complete blood count, erythrocyte sedimentation rate, albumin, aspartate aminotransferase, alanine aminotransferase, immunoglobulin A, and tissue transglutaminase. Stool studies are negative for Giardia sp, Clostridium difficile, and enteric pathogens. Of the foilowing, the MOST appropriate next step is

A 14-year-old girl presents to your office with complaints of a red and ''irritated'' eye for the past 12 hours. She wears contact lenses, but has not worn them since the previous evening. Her pain and inflammation have continued to worsen despite removing the contact lenses. On physical examination, you note diffuse moderate injection of the bulbar conjunctiva of the lefteye. Her extraocular motions and pupillary reflexes are normal. Results of funduscopic examination are normal. There is no discharge. Fluorescein examination reveals diffuse uptake of stain but no evidence of corneal abrasion. Of the following, the MOST appropriate next step in the management of this child is to

An 18-year-old boy presents to the emergency department 30 minutes after eating at a seafood restaurant. He states that approximately 10 minutes into his meal he developed generalized hives, pruritus, and difficulty breathing. He has a history of shellfish food allergy, although he had ordered steak and denies eating any crab, lobster, or shrimp. On physical examination, the patient appears to have labored breathing, audible wheezing, and diffuse raised erythematous USMLE Pediatry2e/Management lesions (Item QlSA) on his trunk and extremities. His vital signs include a temperature of 98.5°F (37°C), heart rate of 100 beats/min, respiratory rate of 22 breaths/min, blood pressure of 110/60 mm Hg, and pulse oximetry of 92% on room air. Of the following, the MOST appropriate immediate action is:

A 3-year-old child is rushed to the emergency department after the mother found her with an open and empty bottle of acetaminophen. The mother has no idea how many tablets were in the bottle. She estimates that no more than 1 hour has passed since the child ingested the tablets. The child began to vomit during the trip to the emergency department, and has vomited three times more since her arrival. The child is awake and alert but clearly unhappy, crying even in her mother's arms. She appears pale and diaphoretic. Her heart rate is 110 beats/min, respiratory rate is 26 breaths/min, temperature is 98.6°F (37°C), and blood pressure is 90/60 mm Hg. Of the following, the MOST appropriate statement about acetaminophen toxicity is that:

A 9-year-old girl develops daily daytime enuresis for 3 weeks. You notice her sitting in a chair in your office waiting room with her legs crossed and squirming. About 20 minutes later, upon entering the examination room, she runs to the bathroom to urinate. You are able to obtain a urine sample, and results of analysis are normal. Her vital signs and findings on history and physical examination are all unremarkable. Of the following, the MOST appropriate next step in.her management is to

During a sports physical, you note that a 14-year-old boy has thoracic kyphosis. He cannot pull his shoulders back to correct the curvature in the standing position. The kyphosis persists in the prone position. A standing lateral radiograph reveals a kyphotic curve of 50 degrees between T3 and T12, with anterior wedging of vertebrae at T7 and TS and T9. The patient is at Risser stage 4. Of the following, the MOST appropriate management plan for this patient is to

During a health supervision visit for a 16-year-old boy, you learn that he has experienced chest pain twice with intense exercise during practice for his high school varsity soccer team. Each time the pain felt like pressure, radiated to his left shoulder, and was associated with lightheadedness. He did not seek medical attention after either episode. His father, who is age 49 years, has hypertension and uses lipid-lowering medication. Results of the boy's physical examination are normal, including his blood pressure and cardiovascular examination. Of the foilowing, the BEST management plan is

A 1-week-old infant presents for his first newborn evaluation. He had been discharged apparently well and thriving at 48 hours of age. He now exhibits grouped vesicles on an erythematous base that were not present at birth. Wright stain of scrapings from the floor of the vesicles reveals multinucleated giant cells and balloon cells. Of the following, the MOST likely diagnosis is

A 15-month-old boy presents to the emergency department following the acute onset of nausea, vomiting, and abdominal pain. He appears agitated. His heart rate is 160 beats/min, but other vital signs are normal. His mother, who has asthma, reports finding her theophylline bottle lying empty on the floor in her bedroom. His capillary blood gas measurement is normal, and his USMLE Pediatry2e/Management blood glucose concentration is 190 mg/dL (10.5 mmol/L). Of the following, the MOST appropriate management of this patient is

A 12-year-old girl presents to your office for the first time with a swollen, painful, erythematous right knee joint. She tells you that her left knee felt and looked similar yesterday, but now feels normal. She also is easily fatigued and has had fever. On physical examination, she has a temperature of 101.7°F (38.7°C), a heart rate of 125 beats/min, a respiratory rate of 24 breaths/min, and a blood pressure of 120/78 mm Hg. Her lungs are clear. On auscultation, you note a 3/6 holosystolic murmur (Item Q87A) at the cardiac apex with radiation to the axilla. Of the following, the BEST plan for management of this patient's joint swelling includes

You are working in a refugee camp when a mother brings in her 8-day-old boy. The mother states he started becoming irritable 2 days ago, and now any loud noise appears to cause him pain, as evidenced by muscle tightening and back arching causing his head to nearly touch his feet. Physical examination reveals only a dried packing on his umbilical cord, as is the local custom. He appears normal until he is stimulated by touch or a loud noise, and then he begins to cry, stiffens, and arches his back. The stiffness continues until he calms down. Of the following, the MOST likely diagnosis is

You are evaluating a 2-year-old boy in your office for recurrent cellulitis of his right thigh. The patient has had three episodes in the last 4 months. According to his mother, all the episodes start with a ''red bump'' that progressively enlarges and, in most cases, drains spontaneously. He has received two courses of cephalexin in the past, but there was no clinical improvement until the abscess spontaneously drained. On one occasion, an incision and drainage procedure had to be performed. Except for pain with walking, the patient has been afebrile and experienced no other systemic symptoms. On physical examination, you note a 6x6 cm area of induration and erythema on the lateral right thigh that is warm, firm, and tender to palpation. There is no active drainage from the site. Of the following, the MOST appropriate antibiotic for treatment of this patient is

You are evaluating a 2-year-old boy because he bangs his head on his bed before he goes to sleep. His mother has no other concerns about his behavior. There have been no recent changes in the family or stresses that she can identify. Physical examination findings are normal except for excoriated skin on the boy's forehead and minimal ecchymosis. Of the following, the MOST likely diagnosis is

A 10-year-old child is brought to your office for evaluation of a 1-day history of fever, vomiting, diarrhea, and abdominal pain. His mother states that he has vomited five times, and the emesis has been clear. He has had four episodes of nonbloody diarrhea. He describes his abdominal pain as crampy but cannot localize it to any specific part of his abdomen. He denies any symptoms of dysuria. On physical examination, the child is in no acute distress, his temperature is 99.2°F (37.3°C), heart rate is 102 beats/min, respiratory rate is 26 breaths/min, and blood pressure is 105/70 mm Hg. Results of examination of the head, neck, chest, and heart are normal. His abdomen is soft, and there is no guarding. There is no rebound tenderness. He complains of mild discomfort on deep palpation of his entire abdomen. He has hyperactive bowel sounds on auscultation, and he has no flank tenderness. Of the following, the MOST appropriate next step in the management of this patient is to

A patient is admitted from the emergency department following a large-volume haematemesis. Oesophagogastroduodenoscopy is performed, which identifies a posteriorly positioned duodenal ulcer that is actively bleeding. The vessel responsible is?

A 4-year-old boy presents to your clinic with a 4-day history of fever. Over the past 24 hours, he developed swelling over the left side of his face, and his left eye is starting to close. On physical examination, his temperature is 102°F (38.9°C), and his left cheek and lower eyelid are swollen but not red or warm. On oral examination, you note a severe decay of the second maxillary molar and elicit pain when you tap on this tooth. Of the following, the MOST appropriate therapy is