What is the normal outflow time for strain gauge plethysmography?

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Prepare for the Clinical Sonography III Exam with flashcards and multiple choice questions. Each question includes hints and explanations. Excel in your exam!

Multiple Choice

What is the normal outflow time for strain gauge plethysmography?

Explanation:
Outflow time in strain gauge plethysmography is the duration it takes for the limb to return to its baseline volume after venous outflow is allowed to resume. In a healthy limb, venous drainage returns to baseline in about three seconds. This ~3-second value reflects normal venous capacitance and drainage. If the outflow time is longer, it suggests venous insufficiency or obstruction, whereas shorter times may indicate measurement artifacts or atypical physiology.

Outflow time in strain gauge plethysmography is the duration it takes for the limb to return to its baseline volume after venous outflow is allowed to resume. In a healthy limb, venous drainage returns to baseline in about three seconds. This ~3-second value reflects normal venous capacitance and drainage. If the outflow time is longer, it suggests venous insufficiency or obstruction, whereas shorter times may indicate measurement artifacts or atypical physiology.

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