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What does 'r/o' stand for in a clinical context?

  1. Rule out

  2. Right over

  3. Roll over

  4. Rupture of

The correct answer is: Rule out

In a clinical context, 'r/o' stands for 'rule out', meaning to eliminate or exclude something as a possibility. This term is commonly used when discussing possible diagnoses or conditions, as the process of 'ruling out' helps doctors narrow down potential issues to arrive at a correct diagnosis. 'Right over' (B) and 'roll over' (C) are not relevant in a clinical context. 'Rupture of' (D) is a plausible answer but not specific to the context of clinical terminology. This makes 'rule out' (A) the most appropriate and accurate choice.