The following patient data are obtained:CaO2 Pv¯O2 Sv¯O2 Hb12 vol%30 torr60%10 g/dL             The patient’s C(a-v¯)O2 is approximately

The following pulmonary function results are obtained for a patient:       .   Observed  Predicted % Predicted             . FVC 3.40 5.90 57.6% FEV1 0.50 4.00 12.5% FEV1/FVC 14 70 FEF25-75% 0.77 4.50 17.0% TLC 8.40 7.30 115.0% A respiratory therapist should recommend a treatment plan for

A patient has been receiving mechanical ventilation through a tracheostomy tube for 16 days.  The patient begins to thrash about in the bed following withdrawal of a drug-induced coma.  The patient’s tracheostomy tube has become dislodged.  Following appropriate sedation, a respiratory therapist should NEXT

Which of the following assessments can be made from a pressure-volume loop? . presence of inspiratory work     amount of  air trapping   pulmonary compliance spontaneous tidal volume A YES YES YES NO  B YES YES NO  YES C YES NO  YES YES D NO  YES YES YES  

 The following capnographic tracing is noted for a patient receiving mechanical ventilation:A respiratory therapist should

 An adult victim of a burn injury is being monitored in the ICU.  Patient data are as follows:Pv¯O2               45 torrPCWP                4 mm HgPPA              11 mm HgCVP                4 cm H2OUrine output     5 mL/hrA respiratory therapist should conclude the patient is

A 39-year-old patient who is morbidly obese is admitted to the ED with fever, productive cough, and shortness of breath.  The patient’s vital signs are stable and he is awake and alert.  After initiation of bronchodilator therapy and antibiotics, results for serial blood gas analyses reveal:                           10 AM         11 AMFIO2                    0.21         0.50pH                       7.28         7.22PaCO2                72 torr      85 torrPaO2                  45 torr      56 torrHCO3-                34 mEq/L 35 mEq/LBE                       +5 mEq/L   +4 mEq/LSaO2 (calc)            80%         89% The patient’s clinical condition remains unchanged.  Which of the following should a respiratory therapist do NEXT?

A patient’s V/Q scan indicates an excess of ventilation compared to perfusion in the left lower lobe.  These results suggest

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?

The information below was obtained from a pulmonary function report for a 40-year-old male who weighs 73 kg (161 lb) and is 177 cm (5 ft 9 in) tall:FEV1           2.16 L (53% of predicted)FVC             2.50 L (55% of predicted)FEV1/FVC     90%DLCO         51% of predictedThere is no response to bronchodilator therapy.  Which of the following should a respiratory therapist recommend NEXT?