<prompt> A patient present with pedal oedema with Water- hammer pulse. What is the diagnosis?B1 deficiencyB3 deficiencyB6 deficiencyB12 deficiency  <response>: Ans. A. B1 deficiencyWater hammer pulse is seen in high output cardiac failure caused by wet beri-beri. The development of CHF can explain the pedalperiorbital edema of the patient. 