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What will occur if a cascade passover humidifier is added to a circuit to replace an HME without performing a pre-use ventilator safety test.

An intubated patient is recieving mechaical ventilation. The patient’s condition has not changed, but peak inspiratory pressures are increasing. Which of the following is the most likely cause of this problem?

A respiratory therapist observes the following pressure volume loop while monitoring a patient who has acute respiratory distress syndrome due to severe acute respiratory syndrome (SARS).The therapist’s most appropriate action would be to:

A patient recieving mechanical ventilation requires frequent suctioning. During each suctioning procedure, the patient desaturates and develops tachycardia. Which of the following should the therapist do?I. Increase the FIO2 to 1.0 during suctioningII. Install a closed circuit suctioning systemIII. Increse PEEP during suctioingIV. Request a bolus of midazolam (Versed) prior to suctioning

A patient with COPD who is receiving a bronchodilator by a metered dose inhaler (MDI) q6h complains of wheezing before the next treatment. the respiratory therapist should recommend which of the following?

A respiratory therapist is assisting the physician with endotracheal intubation. Which of the following should be used initially for determining appropriate placement of the endotracheal tube in the trachea?

A 75 kg man with septicemia has been receiving volume-controlled ventilation in the assist/control  mode for 72 hours. Ventilator settings and ABG are as follows:FIO2                        0.70                          pH              7.41Mandatory rate        14                             PaCO2       37 torrTidal volume            600 ml                     PaO2                58 torrPEEP                      15 cmH2O                 HCO3         23 mEq/LPIP                         50 cmH2O                 BE             -1 mEq/LPplat                       45 cmH2OWhich of the following should the respiratory therapist recommend?

While assessing a mechanically ventilated female patient with a 6.5 ETT, a respiratory therapist notes a large leak around the endotracheal tube. The therapist adds air to the cuff until the leak is no longer heard, resulting in a cuff pressure of 45 mm Hg. The therapist should:

Mechanical ventilation is indicated for patients with which of the following conditions?I. Acute on chronic hypercapneaII. Anemic hypoxiaIII. Narcotic-induced hypoventilationIV. Increased work of breathing

Wheezes and rhonchi are heard bilaterally after a patient aspirated gastric contents. The patient appears short of breath, has a cough producing copious, watery secretions and the SpO2 is 78%. The physician asks the respiratory therapist to initiate oxygen therapy.Which of the following types of oxygen administration devices should the therapist select for his patient?