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RESP 200 Lecture Practice Test | Mechanical Ventilation Modes Settings ABG Interpretation

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INSTANT PDF DOWNLOAD of the complete "RESP 200 LECTURE - " featuring 170 graded questions and correct answers on mechanical ventilation and respiratory care including minute ventilation (MV = breathing rate × tidal volume), tidal volume recommendations (6-8 cc/kg ideal body weight using formulas: males 106 + 6 × (inches over 5 ft), females 105 + 5 × (inches over 5 ft)), assist control (AC) mode supporting every breath, SIMV (Synchronized Intermittent Mandatory Ventilation) synchronizing mandatory breaths with spontaneous efforts, pressure support ventilation (PSV) augmenting spontaneous breaths, PEEP (positive end-expiratory pressure) to recruit collapsed alveoli, barotrauma (lung injury from excessive pressure, plateau pressure goal ≤30 cmH2O, PIP 35 cmH2O), auto-PEEP (incomplete expiration causing air trapping), A-a gradient (normal 5-25 mmHg on room air, 450 mmHg on 100% O2 indicates severe hypoxemia/shunt), FiO2 settings (100% for bag-mask, wean to 0.50 to avoid oxygen toxicity), ARDS management (optimal PEEP, low tidal volume 6-8 cc/kg), ventilator complications (VAP, volutrauma, biotrauma, pneumothorax, decreased cardiac output), weaning indicators (VC 10-15 mL/kg, NIF more negative than -20 cmH2O, VD/VT 60% indicates inadequate gas exchange), non-invasive ventilation (NIV) indications (COPD exacerbation, pulmonary edema, OSA), respiratory failure (hypercapnic with low pH and high PaCO2, hypoxemic with elevated A-a gradient), and ventilator alarm troubleshooting (high pressure alarm from secretions or bronchospasm). Perfect for respiratory therapy (RT) program exam review.

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Institution
Respiratory
Course
Respiratory

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1. Minute ventilation (MV) is calculated by multiplying
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r. product of oxygen and carbon dioxide partial pressures
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r. breathing rate × breaths per minute r. r. r. r. r.




r . tidal volume × volume of one breath
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r . breathing rate × tidal volume r. r. r. r.




2. Describe the significance of using ideal body weight when determining tidal
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volume for mechanical ventilation.
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r . Ideal body weight is used to calculate medication dosages, not tidal
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r. volume.

r . Ideal body weight is irrelevant in determining tidal volume for
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mechanical ventilation.
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r . Tidal volume should be based solely on the patient's actual weight.
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r. Using ideal body weight helps ensure appropriate tidal volume for
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r. effective ventilation while minimizing the risk of lung injury.
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3. When adjusting the FiO2 setting for a patient receiving mechanical ventilatory
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support, what should your goal be?
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r. Decrease the FiO2 to below 0.50 as soon as possible. r. r. r. r. r. r. r. r. r. r.




Decrease the FiO2 to below 0.70 as soon as possible.
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r. Maintain the highest possible FiO2 as long as needed.r. r. r. r. r. r. r. r. r.




Decrease the FiO2 to below 0.30 as soon as possible.
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,4. Describe the relationship between Vital Capacity and respiratory muscle
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function in the context of mechanical ventilation.
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r . Vital Capacity is unrelated to respiratory muscle function.
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r . Vital Capacity only measures lung volume, not muscle strength.
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r . A high Vital Capacity indicates the patient is healthy and does not
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r. need ventilation. r.




r . A lowVital Capacity indicates respiratory muscle weakness,
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r. suggesting the patient may need mechanical ventilation. r. r. r. r. r. r.




5. The assist control (AC) mode of mechanical ventilation supports:
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r. Every other breath r. r.




r. r. Every fourth r.




breath
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r . Only spontaneous breaths. r. r.




r . Every breath r.




6. A patient requires mechanical ventilation, and the initial settings are not
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achieving adequate gas exchange. If the tidal volume is set at 10 cc/kg, what
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adjustment should be made to align with recommended parameters?
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r . Reduce the tidal volume to 6-8 cc/kg. r. r. r. r. r. r.




r. Increase the tidal volume to 12 cc/kg. r. r. r. r. r. r. r.




r. Change the respiratory rate to 25 BPM. r. r. r. r. r. r. r.




Maintain the tidal volume at 10 cc/kg.
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7. If a patient presents with a significantly elevated A–a gradient, what clinical
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implications might this have for their treatment plan?
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r . It indicates that the patient is recovering well.
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, r . It suggests the patient requires more fluid intake.
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r. It may indicate the need for supplemental oxygen or mechanical
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r. ventilation.

r . It means the patient should be weaned off all respiratory support.
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8. What is one of the primary goals of mechanical ventilation?
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r. Reduce oxygen r.




consumption
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compliance
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r . Maintain adequate minute ventilation r. r . r.




r . Increase respiratory rate r. r.




9. What is the purpose of pressure support ventilation?
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r . To improve the expiratory respiratory cycle.
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r . To assist with spontaneous ventilation.
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r . To assist with ventilator initiated breaths.
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r . To measure the pressure required for each breath.
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10. Describe the significance of a patient's ability to maintain adequate
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ventilation in the context of intubation.
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r . Patients with a high respiratory rate do not require intubation.
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r . A patient's inability to maintain adequate ventilation indicates a
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need for intubation to ensure proper gas exchange.
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r . Intubation is only necessary if the patient has low oxygen saturation.r. r. r. r. r. r. r. r. r. r.




r. Adequate ventilation means the patient can breathe normally without r. r. r. r. r. r. r. r.



assistance.
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, 11. Describe how improper management of ventilation settings can lead to
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barotrauma during mechanical ventilation.
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r . Barotrauma is unrelated to ventilation settings but rather to patient r. r. r. r. r. r. r. r. r.



r. positioning.

r . Improper management of ventilation settings can lead to excessive
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r. pressure in the lungs, causing overdistension of alveoli and
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r. resulting in barotrauma. r. r.




r . Barotrauma is a result of inadequate oxygen supply to the lungs. r. r. r. r. r. r. r. r. r. r.




r. Barotrauma occurs only when the patient is not monitored during r. r. r. r. r. r. r. r. r.



r. ventilation.

12. What is the primary reason for monitoring ventilation settings in mechanical
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ventilation?
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r. To reduce the need for sedation.
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r. To prevent equipment malfunction.
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r . To increase the duration of ventilation.
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r . To maintain adequate gas exchange and ensure patient comfort.
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13. For most ventilator patients, VT is initiated at _______ ml/kg of predicted or
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ideal body weight.
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r . 6-8 ml/kg r.




r. 10-12 ml/kg r.




r . 8-10 ml/kg r.




r . 4- 6 ml/kgr. r.




14. What does an A–a gradient greater than 450 mmHg on 100% O₂ signify?
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Institution
Respiratory
Course
Respiratory

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