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6 Cards in this Set
- Front
- Back
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Plethysmography measures |
Volume changes |
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DC Coupling |
Direct current Electric voltage that is either positive or negative Current flows in only 1 direction (battery) Detects slower changes in blood content Used for venous study |
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AC Coupling |
Alternating current Electric voltage that reverses polarity(positive or negative) 60 times a second Current flows in both directions(wall plugs) Detects fast changes in blood content Used for arterial studies |
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Pulsatile venous flow |
Fluid overload CHF Tricuspid regurgitation |
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Budd-Chiari syndrome |
Results from hepatic vein occlusion Primary site of obstruction may be hepatic vein, sinusoids or IVC |
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Budd-chiari clinical findings |
Hepatomegaly, abdominal pain, sudden onset of ascites |
