Author Question: A VAI patient with a TT is having a trial of cuff deflation to allow for speech. The patient's voice ... (Read 27 times)

mikaylakyoung · **on:** Jul 16, 2018

A VAI patient with a TT is having a trial of cuff deflation to allow for speech. The patient's voice is weak, and he can speak only two or three words with each exhalation.

The respiratory therapist could adjust which ventilator settings to improve the patient's speech?
1. Expiratory time
2. Inspiratory time
3. Volume
4. PEEP

a. 1 and 3
b. 2 and 4
c. 1 and 4
d. 2 and 3

Question 2

The appropriate power source for a wheelchair-mounted ventilator is which of the following?

a. AC current
b. Pneumatic
c. Internal DC battery
d. External DC battery

miss.ashley · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
When the cuff is deflated, the ventilator increases flow during exhalation to maintain the set PEEP because a leak is detected. PEEP impedes expiratory flow through the ventilator expirato-ry valve, so air flows through the larynx. By using a longer inspiratory time and PEEP, the addi-tive effect produces increased speaking time and improved speech quality.

Answer to Question 2

ANS: D
An external DC battery allows the ventilator to be mounted and used on a wheelchair or in a car. Use of an external DC battery enables longer operation, as needed, during transport.