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Describe the clinical indications for pulmonary function testing. Understand the physiology of the core pulmonary function tests: spirometry, lung volumes and DLCO. Apply an organized approach to interpreting pulmonary function tests. Identify obstructive, restrictive, mixed obstructive-restrictive and pulmonary vascular patterns of ...
5 cze 2012 · In this article we will provide an overview of basic pulmonary function tests and an algo-rithm for using and interpreting them, and then we use three cases to explain how to use these tests to identify the pattern of respirato-ry dysfunction, then make the diagnosis.
Pulmonary function tests can provide important clinical information, yet they are vastly underused. They are designed to identify and quantify defects and abnormalities in the function of the respiratory system and answer questions such as the following: How badly impaired is the patient’s lung function? Is air-way obstruction present?
Review age, gender, smoking status, BMI, indication, flow-volume curves. Quality control. Three acceptable maneuvers with repeatable values: Two highest values of FVC and FEV1 should be within 150mL (100mL if FVC ≤ 1L)
Abnormal Pulmonary Function Patterns: 1. Obstructive 2. Restrictive 3. Neuromuscular weakness 4. Pulmonary Vascular 5. Poor Effort
6 mar 2024 · Flow-volume curves: Graph of airflow as a function of volume during inhalation and exhalation. Volume-time curve: Graph of the volume exhaled over time. Spirometry is the simplest pulmonary function test. For example, it may be obtained in the office of some primary care physicians.
Pre-operative Pulmonary Assessment: PFTs ♦Spirometry: FEV1 or FVC <70%, FEV1/FVC<65% ♦PaCO2>45 mmHg in COPD ♦None contraindicate ♦Lung resection: FEV1 best for pulmonary reserve and post op complications; post op FEV1 <30% predicted=increased long term mortality and immediate post op problems
