A polysomnography indicates the patient has an apnea-hypopnea index (AHI) of 25.  This is characterized as which of the following?

What is the lymphatic organ/structure identified by letter B?

Mr. Green is currently in VC mode.  You notice that it is taking a large amount of pressure to deliver his targeted tidal volume. What should you recommend to minimize the amount of pressure?

Calculate the I:E ratio if the I-time is 0.5 and the E-time is 0.85 sec.

What are the sites of substantial tubular reabsorption and select secretion?

The following is obtained on a 5’6″, 225-lb male patient: VENT SETTINGS Mode SIMV/VC Vt  325 RR 14 PEEP 5 cm H20 PS 10 cm H20 FIO2 75% ABG pH  7.31 PaCO2 52 Pa02 82 HCO3 24 Sa02 96% What should the respiratory therapist recommend?

A patient diagnosed with central sleep apnea would benefit from which of the following?

Calculate the TCT for a RR 12 and I-time of 1 second.

Calculate the inspiratory time (TI) when a ventilator is set at a tidal volume (VT) of 800 mL and a constant flow rate of 40 L/min.

A patient is intubated due to an acute exacerbation of chronic obstructive pulmonary disease (COPD). The patient is now breathing with pressure support ventilation 5 cm H2O and continuous positive airway pressure (CPAP) 5 cm H2O. The patient is unable to flow trigger every inspiration. Unintended positive end-expiratory pressure (auto-PEEP) is measured at 10 cm H2O. The most appropriate action to take is which of the following?