Introduction of power lab and spirometer

1. Introduction to power lab
with respect to respiration
By: Dr. Irtaza rehman
Author of the book “The Extraordinary Life”

3. Learning Objectives:
To know about
1. Major and minor hardwares of power lab.
2. Softwares of Power lab.
3. Features in the Lab Tutor software
4. Spirometer and its uses.

4. Historical background of physiology
equipment
• Kymograph
• Lab chart
• Oscilloscope
• Power Lab

5. Kymograph
(Recording Drum)
Records movement
on a moving surface

7. Paper chart recorder

8. Oscilloscope

9. Power Lab
• A hardware which works
in conjunction with
different softwares.
By AD Instruments; Sydney, Australia

10. Softwares
• Lab Tutor
• Lab chart
• Scope

11. Lab Tutor
• HTML based software for laboratory teaching

12. Lab Tutor
Functions:
1. Sampling
2. Digitizing
3. Storage of data
Display
Manipulate
Analyze the
data

13. How data acquisition occur
in power lab??

14. Power lab hardware
• Measures electrical signals through inputs on its
front panel

15. Power lab spirometer
• Pressure transducer for
measurements of respiration flow
rates.

16. Spirometry
• Latin: Spiro = To breathe
Meter = To measure
“To assess lung function
From expelled air
After maximal inspiration”

17. Types of spirometer
• 1. Mechanical devices
(Incentive Spirometer)
• 2. Electronic Spirometer
• 3. Wind mill type spirometer

18. Incentive Spirometer

20. Electronic Spirometer

21. Pneumotachometer

23. Spirometer pod
(Zero Pod)
• The Spirometer Pod is ideal for teaching, which
provides entry level human respiratory flow
measurements using an appropriate respiratory
flow head and PowerLab data acquisition
system.

24. Working principle of spirometer

25. Features:
• 1. Low Noise
• 2. Low air flow resolution
• 3. Temperature sensitive
Spirometer pod
(Zero Pod)

26. Spirometer pod
(Zero Pod)
Zeroing the Zero Pod
l. In order to give appropriate volume
measurements it is important to always
reset the baseline by clicking the ‘Zero Pod
button’ prior to making any new recording.
Note: The Zero Pod button resets the voltage offset from the Spirometer Pod
to zero. It should be clicked prior to starting any recording during the
Respiratory Air Flow and Volume experiment.

27. • 2. Since the Spirometer Pod is sensitive to
temperature and tends to drift during warm-
up, turn on the PowerLab for at least 5 minutes
before use.
• To prevent temperature drift due to heating of
the Pod, place it on a shelf or beside the
PowerLab, away from the PowerLab power
supply.
Spirometer pod
(Zero Pod)

28. How to prevent vaporization in
plastic tubes?
“In order to prevent
water vapor
collecting in the two
plastic tubes from
the flow head they
should always be
pointing upwards”

29. Indications of Spirometer
• Restrictive or chronic obstructive lung disease
• Airway resistance
• Pulmonary function

30. By measuring
• Tidal volume
• Minute ventilation
• Respiratory rate
• Peak inspiratory flow (PIF)
• Peak expiratory flow (PEF)
• Forced vital capacity (FVC)
• Forced expiratory volume in 1 second (FEV1)

32. JazakALLAH Khair
(May ALLAH reward you with goodness)