A sudden drop in peak pressures during volume-controlled ventilation could be due to which of the following?I. Increased expiratory timeII. A leak in the endotracheal tube cuffIII. A malfunctioning exhalation valveIV. Low water level in the humidifier

A patient who is dyspneic and has COPD is breathing room air. The following arterial blood gas results are obtained:pH          7.32PaCO2    68 torrPaO2           49 torrHCO3      34 mEq/LBE         +9 mEq/LWhich of the following devices should be used for the administration of oxygen to this patient?

Which of the following devices is used to measure endotracheal tube cuff inflation pressure?

Following successful re-intubation and examination of a patient, the respiratory therapist should recommend:

A patient has been receiving an ultrasonic nebulizer treatment for 15 minutes with 3% saline. He begins to wheeze and complains shortness of breath. Which of the following should the respiratory therapist do?I. Discontinue the treatmentII. Notify the physicianIII.Continue the treatment with 0.9% salineIV. Monitor the patient

During resuscitation of an adult patient, the following ECG tracing is observed:When should sodium bicarbonate be considered?

A 35 y/o, 70 kg patient is receiving pressure controlled ventilation in the ICU following a motor vehicle crash. The following data are available:Mode                     SIMV                      pH            7.29FIO2                      0.50                         PaCO2        61 torrMandatory rate     14                            PaO2           65 torrExhaled VT           500 ml                     HCO3      29 mEq/LPEEP                    10 cmH2O                BE           +4 mEq/LPIP                        35 cmH2O               SaO2            89%I:E                         1:2The respiratory therapist should recommend changing the:

Thirty minutes post extubation, an adult patient recieving 40% oxygen by cool aerosol begins to exhibit marked dyspnea, stridor and sternal retractions. The patients respiratory rate  is 40/min and SpO2 is 85%. The respiratory therapist should recommend aerosolized racemic epinephrine and:

a 42 year old woman who is obese and has a long history of smoking recently underwent upper abdominal  surgery. She was extubated last evening and several hours later is observed lying supine with shallow, rapid respirations. There are decreased breath sounds at both bases and the patient is complaining of severe pain with movement..Which of the following should a respiratory therapist suggest at this time?I.Arterial blood gas analysisII. Chest radiographIII. Acid-fast bacillus culture of sputum specimenIV.Electrolyte determinations

Inhaled gas for a patient who has a tracheostomy should: