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Urticaria - Dermatology

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Richard E. Klabunde, PhD<br />

<strong>Urticaria</strong>: Basic Facts<br />

When histamines<br />

are present: Pc<br />

decreases due to<br />

vasodilation, σ<br />

increases and other<br />

variables remain<br />

constant. Thus,<br />

NDF is more<br />

negative and more<br />

fluid leaves the<br />

capillary bed

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