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A 11 year old male with Autism presents with severe dehydration secondary to diarrhea. IN the process of electrolyte evaluation and rehydration, he is noted to have excessive urine output and rising serum sodium levels. What is the most likely cause of these findings?

Steven, a 16-year-old high school student has been referred to your ED after he “jokingly” made a statement to his teacher that he was going to kill himself.  Your assessment indicates a high risk of suicide. Your initial action would be to:

A full-term newborn develops bilious emesis shortly after delivery. The pregnancy was complicated by polyhydramnios. Physical features are suggestive of trisomy 21. On exam, the newborn’s abdomen is soft and non-distended. What is the most likely diagnosis?

During your evening shift in the emergency department, you are asked to see a 9 month old female infant with 2 to 3 day history of several episodes of vomiting and diarrhea. The mother describes him as awake but moderately irritable. On examination, he is alert, with dry mucus membranes, a sunken fontanel, slightly sunken eyes, tachycardia, and 2 to 3 second capillary refill time. His serum Na level is 140. You estimate his percentage of dehydration to be:  

A 12 year old female with known complement deficiency present to the emergency department with an isolated fever of 100.6 F. She appears clinically well. Which of the following management strategies is the best for this patient?

A 14 year old girl is admitted to the pediatric floor for work up of abdominal pain. She presents with an 8 month history of intermittent low-grade fevers and right lower quadrant pain. Her appetite has been decreasing, as pain worsens with eating. Her weight and height have decreased from the 50th percentile to below the 10th percentile for her age over the last 2 years. Her parents originally brought her to the PCP concerned about an eating disorder but was referred to the ED. On examination, the patient has mild right lower quadrant pain and fullness. Her stool is hemoccult positive. Of the following, what is the most appropriate initial diagnostic test to order:

[Choose the correct answer] The IOM’s 1999 report outlined a tiered approach to enhancing safety and quality. How many tiers did the recommended approach have?   

As CCK secretion increases, release of bile by the gallbladder…

Infection of the urinary bladder is called  

Extra credit – for 2 points.  (If you get this correct, the points will adjusted later) Your spaceship has docked at a space station above Mars.  The temperature inside the space station is a carefully controlled 24 °C at a pressure of 745 mmHg.  A balloon with a volume of 425 mL drifts into the airlock where the temperature is -95 °C and the pressure is 0.115 atm.  What is the final volume of the balloon, in milliliters, of the balloon if the amount of gas does not change and the balloon is very elastic?