The therapist is working with a mechanically ventilated patient who has a heat and moisture (HME) exchanger in place. The therapist would like to determine if the HME is providing adequate humidification to the patient. How could the therapist ascertain the effectiveness of the HME?
A. noting the quality of the patient's secretions during endotracheal suctioning
B. inspecting for the accumulation of condensate inside the plastic of the HME
C. examining for the presence of condensate inside the ventilator tubing between the HME and the patient Y-connector
D. touching the HME to feel for warmth from the patient's expirate
ANS: C
A. Incorrect response: Noting the quality of the patient's secretions may require too much time to elapse before the efficiency of an HME is detected.
B. Incorrect response: Checking for the presence of moisture inside the HME does not provide information concerning the effectiveness of an HME.
C. Correct response: The presence of beads of moisture along the inside of the ventilator tubing between the HME and the patient Y-connector signifies the presence of greater than 100% relative humidity.
D. Incorrect response: The perception of warmth from an HME does not indicate the HME is functioning effectively.
You might also like to view...
Which of the following is least likely to be imaged on a radiograph?
a. Incipient occlusal caries b. Moderate proximal surface caries c. Advanced proximal surface caries d. Severe root caries
Solid components of blood include:
A) leukocytes. B) thrombocytes. C) erythrocytes. D) all of the above.
Gangrene and necrosis of the lung are reported with _____
a. J85.1 b. J85.9 c. J85.0 d. J84.9
_________________ is an imaging study that measures bone mineral density (BMD) and is used to determine whether a person may have or be at risk of having osteopenia or osteoporosis. ?
Fill in the blank(s) with correct word