An E cylinder at 1500 psig is being used at 10 liters per minute. At this rate, how many minutes will it last?

You are caring for a 25 year old male post op for a lap choly. His estimated IBW is 72 kgs. He has diminished breath sounds bilaterally. His RR is 26, VC 480 ml, VT 290. His nurse comments that the patient is a “slug” who will not do his IS despite repeated reminders. Based on this data, what would you recommend?

Which of the following is correct regarding the amount of water in the suction bottle of a chest drainage system?

You are caring for a ventilated patient who is a 79 year old morbidly obese male with severe COPD. Current ventilator settings are SIMV with pressure support VT 600 rate 12 FiO2 40% and PEEP of 5. Current chest radiograph reveals hyper inflation with a lower lobe infiltrate. Current ABGs are within normal limits. However, the low minute ventilation alarm begins alarming and you note the minute ventilation is 2.9 liters. This alarm could be caused by: I. An over inflated cuff on the endotracheal tube II. A leak in the ventilator circuit III. A dislodged endotracheal tube IV. A pneumothorax

Mechanical dead space could be best defined as:

Which of the following is correct regarding the amount of water in the suction bottle of a chest drainage system?

The I/E ratio refers to:

Calculate the RSBI given a tidal volume of 350 ml and a respiratory rate of 25.

Using a 3-bottle chest tube drainage system in the presence of a hemothorax, the purpose of the drainage bottle is to: I. act as a “one-way valve” for flow.  II. measure the amount of drained fluid.  III. serve as a collection chamber for fluid.

What is the root mean square velocity of methane (CH4) at 160 K?