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A 16-year-old boy is referred to with a history of malaise and fatigue. He has not been sleeping well and complains of cough and nighttime sweating. On examination, you note some enlarged nontender lymph nodes in the posterior cervical chain, as well as a large supraclavicular node. Review of his growth chart shows a 12% weight loss from his annual visit only a few months ago. A chest x-ray shows an anterior mediastinal mass and hilar adenopathy. Which of the following is the most likely diagnosis?

A 10-year-old with Sickle Cell anemia is admitted to your floor with fever, cough, tachypnea and diminished breath sounds over both lower lobes. His CXR shows infiltrates and consolidation in both lower lobes and his lab work shows leukocytosis and a decreased hemoglobin. Treatment for this patient includes:

An adolescent who is admitted to your floor presents with tall, thin stature, pectus excavatum, and joint hypermobility. Your differential diagnosis should include which of the following diagnoses? Select all that apply:

An adolescent who presents with agitation, disorientation, and hypertension has hypernatremia and an elevated urine sodium. Which of the following is the MOST likely cause?  

All of the following clinical circumstances increase caloric requirements except:

Postoperative concerns in the child undergoing cardiac surgery  include airway, hemodynamics and function. The PNP remembers that cardiac output is determined in the child by the following:

All of the following are scored in the Pediatric Glasgow Coma Scale except:

You are called for a stab wound to the chest. The patient is a 19 yo M who has a radial pulse, but no obtainable blood pressure. He is anxious and gasping for air.  On auscultation he has absent breath sounds on one side and you observe distended neck veins, & tracheal deviation. His CXR is below.    What is the most appropriate first step in management of shock in this patient?  

A 4 year old female presents to the ED after swallowing a penny. The X-ray reveals the coin to be in the stomach. What is the next most appropriate step in management?

 Which of the following substances is associated with pupillary constriction?