Critical Care Exam -2 questions well answered

Critical Care Exam #2 questions well
answered

One of the early signs of hypoxemia on the nervous system is:



a) Tachypnea

b) Restlessness and agitation

c) Cyanosis of the lower extremities

d) Tachycardia - ANS ✔✔b) Restlessness and agitation



If the low-exhaled volume alarm is sounding on a mechanical ventilation, the nurse should:



a) Contact respiratory therapist to set the tidal volume at a higher level

b) See whether the patient is biting the endotracheal tube

c) Extubatne the patient and ventilate with a bag-valve device

d) Assess to see that the ventilator is attached to the endotracheal tube - ANS ✔✔d) Assess to
see that the ventilator is attached to the endotracheal tube



Weaning from long-term mechanical ventilation:



a) Is not affected by fever or abdominal distention

b) Often combines T-piece trials, SIMV, CPAP and pressure support

c) Is easily done over several hour using a T-piece

d) Should not be attempted if the patients family is present in the room - ANS ✔✔b) Often
combines T-piece trials, SIMV, CPAP and pressure support

, Assess the following arterial blood gases: pH 7.48, PaCO2 35mmHg, HCO3 28mEq/L, PaO2 85
mmHg.



a) Uncompensated metabolic alkalosis; normla oxygenation

b) Normal ventilation and oxygenation

c) Partly compensated respiratory acidosis with hypoxemia

d) Fully compensated metabolic acidosis; normal oxygenation - ANS ✔✔a) Uncompensated
metabolic alkalosis; normla oxygenation



True or False:



An end-tidal CO2 detector assists in verifying endotracheal tube placement. - ANS ✔✔True



True or False:



Cyanosis is an early sign of hypoxemia. - ANS ✔✔False



True or False:



Mechanical ventilation is commonly used in critical care setting and it has no complications. -
ANS ✔✔False



True or False:



Pulse oximetry is noninvasive method to measure arterial oxygen saturation. - ANS ✔✔True