A vital information monitor comprising: a vital sign acquiring section configured to acquire vital signs of a patient into whom a tracheal tube connected to a respirator is intubated; a producing section configured to produce an extubation process display screen on which determination items contained in an extubation process for removing the tracheal tube from the patient are displayed, wherein the extubation process includes a plurality of steps; a displaying section configured to display the vital signs acquired by the vital sign acquiring section and the extubation process display screen; a display switching section configured to switch the extubation process display screen that is displayed on the displaying section, to the next step in the extubation process; a determining section configured to determine whether the determination items satisfy predetermined conditions; an input interface section configured to receive an input operation of an operator, wherein the determination items include an automatic determination item and a manual determination item, and wherein the determining section comprises: a first automatic determining section configured to automatically determine whether the automatic determination item satisfies predetermined conditions, based on the vital signs; and a manual determining section configured to determine whether the manual determination item satisfies predetermined conditions, in accordance with an input operation of the operator on the input interface section; and a second automatic determining section configured to automatically determine a success or failure of each of the steps in accordance with determination results of the plurality of determination items of each step, characterized in that a "YES" button and a "NO" button are displayed on an operation input screen for the manual determination item displayed on the extubation process display screen, the manual determining section is configured to determine whether the input operation of the operator is an input operation of designating the "NO" button, or that of designating the "YES" button, and the display switching section is configured to switch the extubation process display screen to the next step in the extubation process if the second automatic determining section has determined that the step presently displayed is successfully executable. a vital sign acquiring section configured to acquire vital signs of a patient into whom a tracheal tube connected to a respirator is intubated; a producing section configured to produce an extubation process display screen on which determination items contained in an extubation process for removing the tracheal tube from the patient are displayed, wherein the extubation process includes a plurality of steps; a displaying section configured to display the vital signs acquired by the vital sign acquiring section and the extubation process display screen; a display switching section configured to switch the extubation process display screen that is displayed on the displaying section, to the next step in the extubation process; a determining section configured to determine whether the determination items satisfy predetermined conditions; an input interface section configured to receive an input operation of an operator, wherein the determination items include an automatic determination item and a manual determination item, and wherein the determining section comprises: a first automatic determining section configured to automatically determine whether the automatic determination item satisfies predetermined conditions, based on the vital signs; and a manual determining section configured to determine whether the manual determination item satisfies predetermined conditions, in accordance with an input operation of the operator on the input interface section; and a second automatic determining section configured to automatically determine a success or failure of each of the steps in accordance with determination results of the plurality of determination items of each step, a first automatic determining section configured to automatically determine whether the automatic determination item satisfies predetermined conditions, based on the vital signs; and a manual determining section configured to determine whether the manual determination item satisfies predetermined conditions, in accordance with an input operation of the operator on the input interface section; and a second automatic determining section configured to automatically determine a success or failure of each of the steps in accordance with determination results of the plurality of determination items of each step, characterized in that a "YES" button and a "NO" button are displayed on an operation input screen for the manual determination item displayed on the extubation process display screen, the manual determining section is configured to determine whether the input operation of the operator is an input operation of designating the "NO" button, or that of designating the "YES" button, and the display switching section is configured to switch the extubation process display screen to the next step in the extubation process if the second automatic determining section has determined that the step presently displayed is successfully executable.