Describe the four types of flow waveforms.
What will be an ideal response?
The rectangular waveform is produced when volume is the control variable and the output is an ascending ramp. The flow waveform (a derivative of the volume waveform with respect to time), assumes the characteristic rectangular shape. The ramp waveform can be ascending or descending. If flow rises as the breath is delivered, it is termed ascending. If flow falls during the ventilator-supported breath, it is called a descending ramp. The sinusoidal waveform resembles the positive portion of a sine wave. It is generated by a rotary-driven piston drive mechanism.
You might also like to view...
Which of the following secrete lymphokines?
A. Macrophages and lymphocytes B. T cells C. Cytokines D. Natural killer (NK) cells E. Monokines
Cellular signals are secure, so it is okay to discuss confidential information on a cell phone
Indicate whether the statement is true or false
Many physicians have replaced their pagers with _____
a. tablets b. laptop computers c. e-mail d. cell phones
A patient care report reads: "PMH includes ESRF and (+) DNR; (+) ASA pta of EMS." Regarding this description, which one of the following is true?
A) The patient is alert and oriented. B) The patient has kidney disease. C) The patient desires resuscitation. D) EMS administered aspirin to the patient.