User's Manual

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Instruction Manual

No. 012-08856A

Spirometer

PS-2152

Introduction

The PASPORT Spirometer allows students to collect accurate air-flow data from a pulmonary

function test (PFT). The subject breathes through a sanitary, single-use mouthpiece as data is

recorded and displayed on your computer or PASPORT interface. From the graphed data

students can measure tidal volume, forced expiratory volume, and other important lung

volumes and capacities.

Included Equipment Part Number

Electronics enclosure and handle

PS-2152

Single-use mouthpiece (2 included)

PS-2522 (10-pack)

CD-ROM containing DataStudio workbook files

013-09084

Additional Equipment Required

PASPORT interface

See PASCO catalog or www.pasco.com

DataStudio or DataStudio Lite

(required for computer-based data collection)

See PASCO catalog or www.pasco.com

DS Lite available for free download

Additional Equipment Recommended

Additional single-use mouthpieces

PS-2522 (10-pack)

PS-2152

WAIT

READY

Summary of content (8 pages)

PAGE 1
Instruction Manual No. 012-08856A Spirometer PS-2152 SPIRO R TE ME ä WA IT RE AD Y PS -21 52 Included Equipment Part Number Electronics enclosure and handle PS-2152 Single-use mouthpiece (2 included) PS-2522 (10-pack) CD-ROM containing DataStudio workbook files 013-09084 Additional Equipment Required PASPORT interface See PASCO catalog or www.pasco.com DataStudio or DataStudio Lite (required for computer-based data collection) See PASCO catalog or www.pasco.
PAGE 2
Spirometer How it works How it works When the test subject breathes through the mouthpiece, a screen in the mouthpiece induces a minute resistance to the air flow. This resistance leads to a pressure differential across the screen that is measured via two air lines that lead to a differential pressure transducer in the electronics enclosure. The Spirometer contains onboard reference data of differential pressures from known flow rates (a non-linear relationship).
PAGE 3
Model No. PS-2152 Data Collection Pulmonary Function Test Procedure 1. Use a nose clip or have the test subject hold his or her nose to ensure that all breathing is done through the mouth. 2. Hold the mouthpiece of the Spirometer stationary and away from air currents (including expired air). Start data collection; note the flashing red WAIT indicator on the sensor. Wait until the green READY indicator is illuminated before you move the mouthpiece or expose it to air currents.
PAGE 4
Spirometer Data Collection Procedure Notes Observing the following conditions will allow you to collect consistent and accurate data. 4 • You may need to run the test a few times in order to get satisfactory data. • The subject should sit up or stand comfortably. • Talk the subject through each inspiration and expiration (this will prevent the subject from being distracted by counting breathes or remembering the sequence.) • Do not allow the test subject to see the data as it is collected.
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Model No. PS-2152 Interpretation of PFT Data Interpretation of PFT Data Total Flow vs. Time ERV TV FEV1.0 IC VC IRV 1 sec. Total Flow is the net volume of air that flows out from the lungs through the Spirometer, equal to the total expired volume minus the total inspired volume. View the graph of Total Flow vs. Time. Four specific lung volumes and two lung capacities can be interpreted from this graph.
PAGE 6
Spirometer Interpretation of PFT Data Lung Volume vs. Time 1 sec. IC IRV FEV1.0 VC TLC TV ERV FRC RV Lung Volume is the constantly-changing amount of air in the lungs. A spirometer can measure how it changes, but cannot directly measure its absolute value. Lung volume can be calculated if one of two specific absolute volumes, residual volume (RV) or functional residual capacity (FRC), is known or estimated.
PAGE 7
Model No. PS-2152 Factors That May Affect Results Factors That May Affect Results In your graphs of Total Flow and Lung Volume, you may notice a slow drift or slight fluctuation in the baseline. These can be eliminated, in most cases, as described below. Note that slow baseline changes usually do not significantly affect the measurements of volumes and capacities that you take from the graphs. • Air pressure changes in the environment during the measurement period can influence the sensor readings.
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Model No. PS-2152 Spirometer Specifications Technical Support The spirometer is an educational instrument. It is not designed, tested, or intended for medical use. Total Flow 5% accuracy when used as described above Default Sampling Rate 50 Hz Flexible Air Lines 90 cm For assistance with any PASCO product, contact PASCO at: Address: PASCO scientific 10101 Foothills Blvd. Roseville, CA 95747-7100 Phone: (916) 786-3800 (800) 772-8700 Fax: (916) 786-3292 Web: www.pasco.com Email: techsupp@pasco.