Medicine General 1e1c61d9 Gaisbock syndrome is known as A Primary Familial Polycythemia B High Altitude Erythrocytosis C Spurious Polycythemia D Polycythemia Vera High-Yield Explanation Answer is C (Spurious Polycythemia) Gaisbock syndrome refers to Spurious Polycythemia or Relative Erythrocytosis due to decreased plasma volume.