While a patient is being ventilated with NeoFlow on a Dräger E-4, an audible and visual alarm is active, and all breaths are being time-triggered. What is the most appropriate action for the res-piratory therapist to take?
a. Suction the endo-tracheal tube c. Dry out the flow sensor
b. Change the venti-lator out d. Switch to Au-toFlow
ANS: C
If the NeoFlow sensor becomes partially occluded with water (or secretions), it will cease opera-tion and trigger audible and visual alarms. When this occurs, the ventilator will continue to oper-ate in the pressure-control mode.
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When a sample of arterial blood is analyzed for the pressure of oxygen (PaO2), the value comes from the:
a. blood plasma. b. leukocytes. c. hemoglobin. d. erythrocytes.
Considering the negative feedback system for the control of blood pressure, when a blood pres-sure rise is noted in the arterial receptors, what is the expected response?
a. Arterial vasoconstriction b. Decreased inotropic state c. Increased heart rate d. Venoconstriction