Which term denotes a lack of energy?

• A. Fatigue
• B. Malaise
• C. Lethargy
• D. Apathy

Answer: (A)

The concept being tested is a term that directly describes a state of reduced energy or exhaustion. Fatigue captures this most precisely: it refers to a subjective sense of tiredness and diminished energy that can limit both physical and mental performance, and it often isn’t fully relieved by rest. In clinical notes, patients might say they feel fatigued after minor activity or that they have ongoing tiredness for weeks or months.

Malaise is a general feeling of discomfort or unease and isn’t specifically about energy depletion. Lethargy implies slowness or drowsiness and a reduced level of responsiveness, which can be broader than just lacking energy. Apathy means a lack of interest or motivation, which is more about emotional engagement than a direct loss of physical or mental energy.