Intensive Care Medicine (ICM) Practice Exam

Which condition is characterized as "walking pneumonia"?

1. Psittacosis

2. Mycoplasma pneumonia

3. Legionnaire’s disease

4. Aspiration pneumonia

The correct answer is: Mycoplasma pneumonia

Mycoplasma pneumonia is often referred to as "walking pneumonia" due to the nature and severity of the illness. This condition is typically caused by the bacterium Mycoplasma pneumoniae, which leads to a milder form of pneumonia that does not usually confine individuals to bed rest, allowing them to maintain a relatively functional state. Patients often experience symptoms such as a persistent cough, low-grade fever, headache, and fatigue, but may not exhibit the severe symptoms commonly associated with traditional pneumonia, such as high fever, chills, and difficulty breathing. The term "walking pneumonia" highlights that individuals can often carry on with their daily activities despite being infected. This atypical pneumonia is particularly prevalent among younger populations, especially school-aged children and young adults. Other conditions listed, such as psittacosis, Legionnaire’s disease, and aspiration pneumonia, can present with more severe symptoms that typically require more intensive management or hospital admission, which distinguishes them from the primarily outpatient management seen in cases of Mycoplasma pneumonia.