<prompt> Maximum positive intrathoracic pressure is generated in:A forceful sneezeA dry brassy coughBlowing a trumpetValsalva maneuvre  <response>: A sneeze or a cough can generate a pressure of 30 and 50 cm H2O. Blowing a trumpet can generate a pressure up to 80 cm H2O. Valsalva maneuvre is a forced expiratory effo against closed glottis. It can generate the pressure between 120 and 150 cm H2O. 