You are treating a 72-year-old female; she had been on the bike for 10 minutes and complains of dyspnea, angina and tachycardia. You notice she is sweating and holding her left arm as if in pain. You immediately get the PT and call 911. Which of the following do you suspect this patient is experiencing?

A 10-year-old with chronic respiratory failure is being transferred by air transport to a rehabilitation facility. Which physiologic change during flight is most concerning for this patient?  

A mother brings in her 4-month-old infant and 6 year old child to the ER when the 6 year old child fell while riding a bike.  The child appears to have a displaced finger. The infant in mother’s arms is alert and well-appearing. As a clinician you see a single 1-cm bruise on the right cheek of the infant, otherwise the infant appears well. The caregiver reports the bruise occurred when the infant “bumped into a toy” while being held by an older sibling. Which of the following is the most appropriate next step regarding the care of the infant?

A 6-year-old with blunt chest trauma becomes acutely hypotensive with absent breath sounds on the right and tracheal deviation. Where should needle decompression be performed?

A child presents after an MVC with abdominal pain and a visible seatbelt sign. CT abdomen is initially normal. What is the most appropriate next step?

A 7-year-old with suspected physical abuse is admitted. What is the priority role of the PNP-AC in management?

A non-ambulatory 8-month-old is found to have posterior rib fractures on imaging. What is the most likely mechanism?  

A severely injured child has ongoing bleeding despite normal initial coagulation labs. What best explains this finding?

A 10-year-old presents with tinnitus, tachypnea, and metabolic acidosis after ingesting an unknown substance. Which acid–base abnormality is most characteristic of this toxicity?

A child presents with suspected abusive head trauma. Which physiologic factor most contributes to poor neurologic outcome?