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Mechanical Ventilation Exam #4
Terms in this set (41)
What type of asynchrony occurs when the patient starts to exhale before the ventilator has completed inspiration?
Which of the following conditions predispose a patient to barotrauma?
I. bollous lung disease
II. aspiration of gastric acid
III.high levels of PEEP with high VT
I II III IV
Assess the following data obtained from the spontaneous breathing trials of four patients. Which patient is most likely to be weaned successfully at this time?
Spontaneous RR = 15 b/min VT = 650 mL PaO2 = 91 mmHg FIO2 = O.3
Which of the following drugs will cause paralysis for an intubation?
What was designed to reduce the WOB associated with increased ET resistance?
Which mode of ventilation uses the electrical activity of the diaphragm to determine ventilation for the patient?
Your mechanically ventilated patient is hypotensive. The physician believes that an increased MAP is the cause of the problem. Which of the following would decrease the MAP?
decreased tidal volume
Positive-pressure ventilation can significantly alter cardiovascular, pulmonary, neurologic, renal, and GI function
increases pulmonary vascular resistance
What should the RRT check first when the low pressure alarm is activated?
What problem must be present to cause simultaneous activation of the low pressure, low volume, and low minute ventilation alarms?
patient ventilator system leak
Air trapping (auto peep) could cause
Overdistension, atelectasis, and atelectrauma could be caused by
Termination asynchrony is also known as
Which of the following is an absolute contraindication for the use of PEEP or CPAP therapy?
untreated significant pneumothorax or tension pneumothorax
Which of the following is the primary factor in determining whether weaning from mechanical ventilation is appropriate?
Improvement or reversal of the disease process or condition that caused the patient to require mechanical ventilation
When using MMV (mandatory minute ventilation) as a weaning technique, which of the following alarms must be set appropriately to ensure patient safety?
High frequency and low VT
All of the following are appropriate methods of weaning from mechanical ventilation except:
volume support (VS)
Which of the following parameters indicate whether a patient is ready for extubation?
I. Presences of abundant and purulent secretions
II. Spontaneous RR = 14 bpm
III. VC = 26 ml/kg
IV. Passes 2 hour SBT
V. CPAP + 15 cmH20
II, III, and IV only
Analgesics are used to facilitate invasive procedures (e.g.., surgery, endotracheal intubation) and to prevent movement and ensure the stability of artificial airways
A 42 year old patient who weighs 70kg (154 lbs) remains intubated in the PACU after laproscopic cholesystectomy. The patient has been receiving 5 cmH20 CPAP with an FIO2 of 30% for the past hour. Vital signs are stable and the following data are available: SpO2= 98%, RR= 18, MIP= -48 cmH20, VC = 1.85 L, VT = 500 mL. The respiratory therapist should recommend
extubating the patient
Which of the following indicates that your patient who has an IBW of 72kg is ready for extubation?
I. NIF of -46 cmH20
II. VC of 0.65 liters
III. VD/VT of 0.7
IV. RSBI= 97
I and IV
Which of the following is a measurement of drive to breathe used to check if a patient is ready for extubation?
Overdistension of the lungs causes the release of which inflammatory mediators?
If flow or sensitivity is set incorrectly, which of the following is most likely to occur during the continuous mandatory ventilation (CMV) mode?
Ventilator assistance is typically required with an artificial airway and positive pressure ventilation during which level of sedation?
Lower inspiratory flows allow for the delivery of the desired VT in a shorter time, which in turn produces lower airway pressures.
Which of the following is most likely to lead to an inflammatory response in the lungs?
What increases the risk of developing auto peep?
II. decreased airway resistance
III.high minute ventilation
IV. low respiratory frequency
I and III
Oxygen toxicity can be caused by adult patients breathing an FIO2 of more than 0.6 for prolonged periods (>48 hours) and maintaining a PaO2 of more than 80 mmHg in a newborn or premature infant.
Which mode of ventilation is designed to do a SBT once the lowest level of inspiratory pressure is achieved and if the patient passes this modified SBT, the system automatically displays a message to separate the patient from the ventilator.
Which of the following is not an advantage of APRV?
Does not completely support CO2 elimination
What is the respiratory rate (frequency) on APRV if the Thigh = 5 seconds and the Tlow = 1 second
Which patients would be excluded from using NAVA?
Heavily sedated, absence of phrenic nerve activity, damaged brain center
Which of the following are methods to reduce Auto-PEEP?
I. increase the PF setting
II. decrease the Ti
III. add extrinsic PEEP
IV. decrease minute ventilation
I, II, III, IV
What type of asynchrony occurs when more than one type of breath is delivered by the vent
An 18 year old patient who is having a severe asthma episode is being mechanically ventilated. The pressure limit alarm is sounding frequently. The patient is very agitated, and his RR is 36. Bilateral BS with minimal wheezing are noted. What should the therapist recommend?
Its a sedative
What is the most common cause of ventilator induced lung injury
A patient successfully completed a spontaneous breathing trial and there are no other contraindications to extubation. What should be the next step?
extubate the patient
A patient is receiving APRV. What setting determines the level of lung inflation?
A mechanically ventilated patient is being considered for vent liberation, what would be the first step?
assess pt for readiness
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