Mechanical ventilation Quiz

From the Nursing Center
1.
Mechanical ventilation is commonly indicated in all of the following conditions except
a. pneumothorax.
b. drug overdose.
c. status asthmaticus.
d. thoracic surgery.
2.
During spontaneous breathing, air is drawn into the lungs by
a. collapsing alveoli.
b. low oxygen levels.
c. negative pressure.
d. positive pressure.
3.
For a patient on mechanical ventilation, total collapse of the alveoli can be prevented by
a. low tidal volumes.
b. PEEP.
c. an inspiratory/expiratory (I/E) ratio of 1:2.
d. low FIO2.
4.
Which ventilator mode delivers gas at a preset rate and tidal volume or pressure regardless of inspiratory effort?
a. assist-control ventilation
b. control ventilation
c. CPAP
d. SIMV
5.
Which tidal volume setting will help prevent volutrauma?
a. 3 to 5 ml/kg
b. 8 to 10 ml/kg
c. 11 to 13 ml/kg
d. 20 to 22 ml/kg
6.
Use the lowest FIO2 that keeps your patient's
a. SaO2 below 90% and PaO2 below 60 mm Hg.
b. SaO2 above 60% and PaO2 above 90 mm Hg.
c. SaO2 above 60% and PaO2 below 90 mm Hg.
d. SaO2 above 90% and PaO2 above 60 mm Hg.
7.
A commonly used I/E ratio is
a. 1:1.
b. 1:2.
c. 1:3.
d. 2:1.
8.
Which of the following should always be kept at the bedside of a patient on mechanical ventilation?
a. a fully stocked crash cart
b. a T-piece
c. a manual resuscitation bag and mask
d. a spare orogastric tube
9.
A sign of tension pneumothorax is
a. fever.
b. tracheal deviation.
c. inspiratory crackles.
d. expiratory wheezes.
10.
According to the Centers for Disease Control and Prevention guidelines, make sure the ventilator circuit is changed
a. every shift.
b. once a day.
c. once a week.
d. only when it's visibly soiled or malfunctioning.
11.
Unless contraindicated, which intervention best decreases VAP risk in a patient receiving enteral feedings?
a. a nasogastric tube
b. nasopharyngeal suctioning
c. nebulizer therapy
d. 30-degree elevation of the head of the bed
12.
Alveolar overdistension during mechanical ventilation is caused by
a. high airway pressures.
b. high tidal volumes.
c. low airway pressures.
d. low tidal volumes.
13.
For successful weaning, a patient generally needs a vital capacity of at least
a. 5 ml/kg.
b. 7 ml/kg.
c. 10 ml/kg.
d. 15 ml/kg.
14.
For successful weaning, your patient's negative inspiratory pressure should be at least
a. -10 cm H2O.
b. -15 cm H2O.
c. -20 cm H2O.
d. -30 cm H2O.
15.
Which weaning method provides a gradual transition from ventilatory support to spontaneous breathing while maintaining a patent airway with an ET tube?
a. T-piece
b. PSV
c. CPAP
d. SIMV
16.
Which is most likely a sign of weaning intolerance in your patient?
a. heart rate of 90 beats/minute
b. BP of 185/104
c. respiratory rate of 24 breaths/minute
d. Spo2 of 92%
17.
Which statement is correct about NIMV?
a. It can't be used with PEEP.
b. Available modes include bilevel positive airway pressure and CPAP.
c. Inspiration is initiated only by the ventilator.
d. It's contraindicated in patients with obstructive sleep apnea.