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Starling Forces — FRCA Primary MCQ

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ModeratePhysiology - CardiovascularStarling ForcesFRCA Primary

Starling forces governing transcapillary fluid movement include which four pressures?

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Correct answer: D — Capillary hydrostatic pressure / interstitial hydrostatic pressure / plasma oncotic pressure / interstitial oncotic pressure

The four Starling forces are: capillary hydrostatic pressure (drives fluid out) / interstitial hydrostatic pressure (drives fluid in) / plasma oncotic pressure (draws fluid in) / interstitial oncotic pressure (draws fluid out). Net filtration = Kf[(Pc - Pi) - σ(πp - πi)] where Kf = filtration coefficient and σ = reflection coefficient.

Reference: Power Kam 2018 Principles of Physiology for the Anaesthetist