Jordan, a 29-year-old woman, has been experiencing severe PT…

Jordan, a 29-year-old woman, has been experiencing severe PTSD symptoms following a car accident two years ago. She avoids driving and even being a passenger in a car. During her Prolonged Exposure sessions, she is asked to imagine the accident in detail and describe her feelings. Which of the following best describes the therapeutic technique being used with Jordan?

A 4-year-old girl is brought to the office with a persistent…

A 4-year-old girl is brought to the office with a persistent cough. Her mother is concerned because she has had a wet sounding cough for the past 4 to 5 months without improvement. Past medical history is significant for three episodes of pneumonia in the past 18 months, each episode treated with antibiotics. Her mother is also concerned that she has been underweight for the past 12 months. On physical examination, the patient is afebrile and her respiratory rate is 24 breaths/minute. Her weight and height are both less than the 5th percentile. Lung examination reveals diffuse crackles and wheezes. Which of the following tests would reveal her most likely underlying diagnosis?