A 21-year-old man arrives in the ED after rescue from a house fire.  Physical examination reveals burns on the upper chest and face, and marked edema of the face and oropharynx.  Analysis results of an arterial blood gas sample obtained while the patient was breathing air are as follows:pH              7.55PCO2           26 torrPO2            105 torrHCO3-          23 mEq/LBE                 +2 mEq/LWhich of the following should a respiratory therapist recommend?

A patient with COPD is receiving oxygen by a nasal cannula at 1 L/min.  The target SpO2 is 90%.  The following data are obtained:pH             7.35PaCO2       64 torrPaO2          52 torrHCO3-       35 mEq/LBE              +7 mEq/L  HR             100RR               18BP        145/90 mm HgSpO2          85%Which of the following should the respiratory therapist recommend FIRST?

Three months after lung transplantation, a patient develops shortness of breath and requires invasive mechanical ventilation.  A chest radiograph shows diffuse alveolar infiltrates.  Which of the following diagnostic tests should a respiratory therapist recommend?

A 65-year-old patient who is post-CABG was extubated 4 hours ago and complains of increasing shortness of breath.  Breath sounds are decreased over the right lung field. The following data are available:HR         105RR           25BP        155/90 mm HgSpO2          90% on 4-L nasal cannulaWhich of the following studies should a respiratory therapist recommend NEXT?

The following information is obtained from a patient breathing air: . HR 110 RR 22 BP 11/70 mmHg SpO2 86% A respiratory therapist should FIRST

An adult patient is intubated after being pulseless for several minutes.  An exhaled CO2 detection device fails to change color despite confirmation of tracheal placement by auscultation and chest rise.  A respiratory therapist should recommend

A patient involved in a motor vehicle crash presents with respiratory distress.  A chest radiograph confirms the presence of multiple fractures to five adjacent ribs on the left side.  Which of the following physical findings should be expected during assessment of the chest?

When reviewing the chart of a newly admitted patient, a respiratory therapist finds the patient has COPD and a 70-pack-year smoking history.  The patient was admitted for dyspnea.  The patient is somnolent and can protect his airway.  Which of the following should the therapist recommend FIRST?

A 30-year-old patient has been receiving mechanical ventilation for 24 hours following admission for a drug overdose.  The patient is alert, oriented, and stable, and has been weaned to PSV of 5 cm H2O and an FIO2 of 0.40.  The following data are collected after 30 minutes:pH                7.45PaCO2            34 torrPaO2          126 torrHCO3-            24 mEq/LBE            +1 mEq/L   VT         485 mLMIP          -38 cm H2ORR           16 Which of the following should a respiratory therapist recommend?

A patient’s C(a-v¯)O2  increased from 4.0 to 6.2 vol% after PEEP was increased.  Which of the following best explains these results?