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오피스

Scientist

Which of the following determine the PCO2 of alveolar gas and thus the PCO2 of the blood leaving the lung?I. Metabolic CO2 production per minuteII. VAIII. CO2 rate of eliminationIV. pH

Which of the following are true of the respiratory exchange ratio?I. It is the ratio of alveolar CO2 excretion to blood oxygen uptake.II. R = CO2/O2III. It is the ratio of oxygen uptake to blood alveolar CO2 excretion.IV. Its value is normally approximately 0.8.

What is the narrowest space of the airway that an endotracheal tube will go through in the adult larynx?

Wich of the following make up the triple airway maneuver? I. Neck Flexion II.Mouth open III.Jaw thrust IV. Neck Extension

Although an increased use of accessory ventilatory muscles coupled with rapid, shallow breathing may signal impending diaphragmatic fatigue, which of the following signs is typically seen in critically ill patients with ventilatory failure and diaphragmatic fatigue?

What causes air to move in or out of the lungs?

A tetherball spinning around a pole is shown in the figure. The ball has a tangential velocity of vT. The rope that ties the ball to the top of the pole makes an angle of q with the vertical. There is a tension, T, applied to the ball by the rope, and the ball has weight, W. Four different free body diagrams (excluding the acceleration) are shown for this system. Choose which one is correct. The letter A, B, C, or D is indicated inside the drawing of the ball.                            .      .    .    .