SOB stands for which term?

• A. Shortness of Breath
• B. Oxyhemoglobin Saturation
• C. Sleep Onset REM
• D. Upper Airway Resistance Syndrome

Answer: (A)

SOB is the standard shorthand for shortness of breath, which describes dyspnea. In clinical practice and sleep medicine notes, SOB is used to refer to a patient’s breathing difficulty, whether at rest, with exertion, or nocturnally. The other options point to different concepts: oxygen saturation is typically written as SpO2 (oxyhemoglobin saturation), Sleep Onset REM isn’t a common or recognized acronym for a sleep term, and Upper Airway Resistance Syndrome is known by the abbreviation UARS. So the correct expansion is shortness of breath.