Deck 2: How Ventilators Work

Question 1

Which of the following ventilators is pneumatically powered?

A) LTV 1000
B) Bio-Med MVP-10
C) Lifecare PLV-102
D) Intermed Bear 33

Answer 1

Bio-Med MVP-10

Question 2

The type of compressors that are used by hospitals to supply wall compressed air has which of the following?

A) Piston
B) Bellows
C) Rotating blades
D) Moving diaphragm

Answer 2

Piston

Question 3

The internal circuit of a ventilator allows the gas to go directly from its power source into the patient.This is known as which of the following?

A) Single-circuit
B) Open loop
C) Closed loop
D) Double-circuit

Answer 3

Single-circuit

Question 4

In the image,what does "B" represent?

A) Expiratory valve line
B) Exhalation valve
C) Expiratory line
D) Main inspiratory line

Question 5

Modern intensive care units' (ICU)ventilators regulate gas flow to the patient by using which of the following?

A) Rotary drive pistons
B) Linear drive pistons
C) Proportional solenoids
D) Spring-loaded bellows

Question 6

The respiratory therapist enters modes and parameters into the ventilator with which of the following?

A) Control logic
B) Input power
C) User interface
D) Drive mechanism

Question 7

A patient being transferred from a hospital to a skilled nursing facility requires mechanical ventilation with a fractional inspired oxygen (F_IO₂)of 0.21.The skilled nursing facility has no piped in gases.Which of the following ventilators will be able to function in the skilled nursing facility without any extra equipment?

A) Servoⁱ
B) LTV 1000
C) Bird Mark 7
D) Bio-Med MVP-10

Question 8

The function of the exhalation valve is to do which of the following?

A) Adjust the flow going to the patient
B) Close during exhalation to vent patient gas
C) Seal the external circuit during inspiration
D) Determine the volume being delivered

Question 9

The power transmission and conversion system of a ventilator is defined as which of the following?

A) A mechanical device that produces gas flow to the patient
B) An electrical motor that is connected by a special gearing mechanism
C) The system that interprets the settings and produces or regulates the desired output
D) Internal hardware that changes electrical or pneumatic energy into mechanical energy

Question 10

A ventilator for which the primary power source generates a gas flow that compresses another mechanism and causes the gas from inside the mechanism to be delivered to the patient is known as which of the following?

A) Single-circuit
B) Double-circuit
C) Closed loop
D) Open loop

Question 11

The volume displacement device that creates a sinusoidal flow waveform is which of the following?

A) Rotary drive piston
B) Linear drive piston
C) Spring-loaded bellows
D) Proportional solenoid