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Computerized pulmonary function analyzers with data processing and recording capabilities. They are used for outpatient and presurgical screening, also for evaluation of common diseases in older children and adolescents. These analyzers consist of a spirometer with volume and flow-sensing devices, gas analyzer for gas diffusing capacity of lungs, and evaluation of absolute lung volumes. Some can measure both lung volumes and airway resistance using a total body plethysmograph.
1. Before making a purchase, facilities need to determine their present and future needs to ensure they get a system that meets those needs.
2. The analyzers offer different complexity and test capabilities. They can be cart-mounted, stand-alone, or a console.
3. The analyzer should allow measurement of ventilation, diffusion, and distribution of gases in the lung.
4. All units usually include a spirometry instrument, various gas analyzers, a plethysmograph, and other test equipment.
5. Computerized pulmonary function analyzers are becoming more user-friendly, providing customized reports, and increasing software options.
6. Users should be able to define and select the predictive equations as needed.
7. The analyzer should measure CO and O2. These devices can complete certain procedures and measure various parameters.
8. Manufacturers should provide the following information: A list of the procedures and measurements of the specific unit.
9. Whether the analyzer has computer-interfacing capabilities. If so, a list of those capabilities.
10. Whether software is required. Any necessary software should be included in the purchase price.
11. Whether the analyzer could be upgraded through future software improvements and/or add-on components that increase versatility.
12. Costs for these enhancements.
13. The analyzer, as a diagnostic tool, must accept patient data, measure patient ventilatory efforts, and present the diagnostic information to the clinician. A hard-copy must be produced as well.
14. All controls should be clear, easy to operate, protected against accidental setting changes, and sealed against fluid penetration.
15. All control functions should be simple; the design should prevent misinterpretation of displays and control settings.
16. Fluid spills should not affect patient and operator safety, or system performance. If the device is indeed affected, it should fail safely.
17. To prevent cross-contamination, the operator's manual should describe the appropriate reprocessing or sterilization methods for reusable, patient-contacted parts.
Before you purchase your Lung Function Analyzer, we recommend you ask the seller the following questions: