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What does 'hs' signify in medical terminology?

  1. Hydrogen sulfate

  2. Highly sensitive

  3. At bedtime

  4. Hearing sound

The correct answer is: At bedtime

HS in medical terminology stands for "hora somni" which is a Latin term meaning "at bedtime". It is commonly used to indicate timing for medication doses or other medical instructions. Option A (Hydrogen sulfate) is incorrect because 'hs' does not stand for any chemical compound in medical terminology. Option B (Highly sensitive) is incorrect because 'hs' does not pertain to sensitivity in any way. Option D (Hearing sound) is incorrect because 'hs' does not relate to hearing or sound in medical terminology.