What is the recommended approach to chest hair when preparing chest electrodes?

• A. Clip hair if indicated, not shave
• B. Shave the chest hair to ensure contact
• C. Wax the chest hair
• D. Ignore hair and place anyway

Answer: (A)

When preparing chest electrodes, the aim is to get a solid, low-impedance contact without harming the skin. The recommended approach is to clip or trim chest hair if it interferes with electrode contact, rather than shaving. Clipping reduces impedance by exposing just enough skin for good adhesion while preserving the skin’s protective barrier, which helps prevent irritation or microabrasions that shaving can cause. Waxing removes hair more aggressively and can injure the skin, while ignoring the hair often results in poor contact and unreliable readings. So, trimming when needed provides the best balance between reliable signal quality and skin health.