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Pulmonary surfactant is a surface-active complex of phospholipids and ... identified the function of the pulmonary surfactant in increasing the compliance of the ...
Pulmonary function testing is a safe procedure; however, there is cause for concern regarding untoward reactions and the value of the test data should be weighed against potential hazards. Some complications include dizziness, shortness of breath, coughing, pneumothorax, and inducing an asthma attack. [13] [14]
This test involves measuring the partial pressure difference between inspired and expired carbon monoxide. It relies on the strong affinity and large absorption capacity of red blood cells for carbon monoxide and thus demonstrates gas uptake by the capillaries that are less dependent on cardiac output . [ 3 ]
Overall testings, family history, external factors, and clinical presentations should all be considered to diagnose surfactant metabolism dysfunction. Testing for surfactant metabolism dysfunction should be considered for newborns with diffuse lung disease or hypoxemia, especially in families with history of neonatal lung diseases or ILD in adults.
Pulmonary function is the measurement of pulmonary capacity and perfusion capabilities. Pages in category "Pulmonary function testing" The following 20 pages are in this category, out of 20 total.
Phosphatidylglycerol is a glycerophospholipid found in pulmonary surfactant [1] and in the plasma membrane where it directly activates lipid-gated ion channels. The general structure of phosphatidylglycerol consists of a L-glycerol 3-phosphate backbone ester-bonded to either saturated or unsaturated fatty acids on carbons 1 and 2.
Dipalmitoylphosphatidylcholine (DPPC) is a phospholipid (and a lecithin) consisting of two C 16 palmitic acid groups attached to a phosphatidylcholine head-group.. It is the main constituent of pulmonary surfactants, which reduces the work of breathing and prevents alveolar collapse during breathing.
But two factors prevent the lungs from collapsing: surfactant and the intrapleural pressure. Surfactant is a surface-active lipoprotein complex formed by type II alveolar cells. The proteins and lipids that comprise surfactant have both a hydrophilic region and a hydrophobic region. By absorbing to the air-water interface of alveoli with the ...