Answer to Question 1
ANS: A
Repositioning is a common cause of endotracheal tube displacement. After turning the child, the nurse should assess the tube placement as the priority. Other actions the nurse should take include documenting the condition of the child's skin and ensuring that the child cannot reach the tube or ventilator tubing and pull it out, but these do not take priority over assessing for correct tube placement. The ventilator alarms should not be turned off, even for a brief period of time.
Answer to Question 2
ANS: B
Weaning from the ventilator is an individualized process that takes into account several different parameters. A child who is becoming increasingly fatigued is not tolerating the weaning. The nurse should collaborate with other members of the health-care team to adjust the weaning process. Rest is important to the critically ill child, but is not the most important action at this time. Laboratory work should be reviewed, but the results may be normal despite the child's fatigue level at this point.
Mechanism of action of microRNA (miRNA)
A nurse prepares a client for anesthesia and surgery.
Nurse opens sterile package
Refractory periods associated with an action potential.
Site of action of diuretics.
Scheme for action of the E. coli clamp loader