A 5-month-old child presents to the emergency department with intussusception. Which of the following best describes the pathophysiology of this condition?

A 62-year-old woman with a past medical history of uncontrolled diabetes, stage III breast cancer, and recent hospitalization presents to the emergency department with severe sudden onset worsening chest pain and anxiety. EKG, cardiac enzymes, and chest X-ray are all within normal limits. Blood sugar levels are slightly elevated. An ultrasound demonstrates a large clot in the right deep femoral vein. Which of the following is the most likely cause for the patient’s chest pain and anxiety?

A patient presents with sudden onset crushing mid-sternal chest pain with radiation to the left arm. Which of the following results would be most suggestive of a myocardial infarction?

This question is worth 2 points. A healthcare professional is assessing burn patients in the emergency department. Which patients should be referred to the burn center for treatment? Select all that apply.

For each type of anemia, identify the characteristic red blood cell size classification.   Microcytic   Normocytic   Macrocytic

Which of the following conditions is most likely to cause obstructive shock?

Which vital sign abnormality would be most consistent with neurogenic shock?

A patient’s arterial blood gas (ABG) reveals the following findings: pH  = 7.50 CO2 = 37 mm Hg HCO3 = 28 mEq/L What is the interpretation of this ABG?

Which of the following interventions is most effective in helping prevent the formation of kidney stones?

Which type of burn injury involves the entire epidermis, dermis, and underlying subcutaneous tissue?