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Clinical Assessment Study Set 1

Medicine

Quiz 14 :

Respiratory Monitoring in the Intensive Care Unit

Quiz 14 :

Respiratory Monitoring in the Intensive Care Unit

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In adult patients, spontaneous tidal volumes should be at least what value if weaning is to be successful?
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B

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Which of the following is least likely to cause an increase in a patient's tidal volume?
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C

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Weaning failure during a spontaneous breathing trial may be predicted when the spontaneous respiratory rate is greater than:
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D

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An important advantage of monitoring mechanical tidal volumes proximally is that:
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The "stacking" of breaths, which often is seen in mechanically ventilated patients with severe airway obstruction, can be caused by:
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Which of the following activities are included in respiratory monitoring? 1) Alarm setting 2) Pulmonary consults 3) Physical examinations 4) Measurements and calculations
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Volutrauma is most likely to develop in:
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Which of the following are likely to cause a decrease in a patient's tidal volume? 1) Pulmonary edema 2) Metabolic acidosis 3) Acute respiratory distress syndrome 4) The postoperative period after coronary artery bypass surgery
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Which of the following ventilator changes will have to be made if the problem of "breath stacking" is to be resolved?
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Ventilatory measurements routinely monitored at the bedside include which of the following? 1) Airway pressures 2) Lung volumes and flows 3) Fractional gas concentrations 4) Oxygen consumption and carbon dioxide production
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It is important to monitor lung volumes in ICU patients because changes in lung volumes reflect which of the following changes? 1) Changes in gas exchange in the lung. 2) Changes in the patient's clinical status. 3) A response to therapy and any problems that may arise. 4) They influence the selection of antibiotic therapy in the ICU.
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Patients who are ventilated with excessively large tidal volumes are at risk for:
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In a sedated, mechanically ventilated patient, inspiratory tidal volumes are consistently larger than expiratory tidal volumes. If it is assumed that there is no leak in the circuit, which of the following provides the best explanation for this discrepancy?
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Which of the following statements about the tidal volume is true?
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If intubated and mechanically ventilated patients are given shallow tidal volumes without sighs, which of the following is most likely to occur?
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Which of the following conditions explains why lung damage persists after recovery from a severe protracted episode of acute respiratory distress syndrome (ARDS)?
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In healthy, spontaneously breathing patients, an occasional increase in tidal volume to three or four times the normal level, which normally occurs about six to ten times each hour, is the definition of a:
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It is important to monitor ventilatory parameters in addition to arterial blood gases because:
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Which of the following changes can decrease "breath stacking" in a mechanically ventilated patient? 1) A decreased ventilator rate 2) An increased inspiratory flow 3) A decreased expiratory time 4) A decreased mechanical tidal volume
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In mechanically ventilated patients, the addition of positive end-expiratory pressure (PEEP) to normal tidal volumes is associated with which of the following effects? 1) Decrease in intrapulmonary shunting 2) Increase in functional residual capacity 3) Increase in partial pressure of arterial oxygen (PaO2) 4) Increase in residual volume
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