A neonate is being ventilated with PRVC. The respiratory therapist responds to a low volume alarm. After checking the patient and the ventilator, the respiratory therapist finds no discon-nects. The most appropriate action is which of the following?
a. Draw a sample for arterial blood gas eval-uation.
b. Increase the target volume.
c. Put the patient in the PC-CMV mode.
d. Recommend surfactant replacement ther-apy.
ANS: B
In the PRVC mode, if the ET tube has a leak, the level of support will be reduced; this occurs because the ventilator is sensing more volume is being delivered for a given pressure, when actu-ally the gas is escaping around the cuffless ET tube. With the alarms set properly, this problem is caught. The patient should be switched to the PC-CMV mode, in which the set pressure is not automatically altered by the ET tube leak.
You might also like to view...
Which of the following classifications of drugs treats glaucoma by reducing the aqueous humor production and increasing aqueous humor outflow?
A) Beta-blocking agents B) Adrenergic agonists C) Miotics D) Cholinergic agents
What is the thyroid and where is it located?
a. Part of the respiratory organ system, located in the chest b. Part of the cardiovascular system, located in the neck c. Part of the endocrine system, located in the neck d. Part of the endocrine system, located in the sinus cavity