Lithiasis is the formation of mineral stones. Which option is correct?

• A. BRB
• B. Lithiasis
• C. BM
• D. Emesis

Answer: (B)

The concept here is medical terminology built from roots and suffixes. “Lith-” means stone, and the suffix “-iasis” denotes a condition or formation. Put together, lithiasis is the condition of stone formation in the body, which is precisely what the description refers to. This term is used in phrases like nephrolithiasis (kidney stones) or cholelithiasis (gallstones). The other options are unrelated to stone formation: one is a common shorthand for “be right back,” another term can refer to bowel movement or bone marrow in different contexts, and emesis means vomiting. So lithiasis is the correct match for the definition given.