RT Book, Section
A1 Freeman, Brian S.
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102565803
T1 Flow and Velocity
T2 Anesthesiology Core Review: Part One Basic Exam
YR 2014
FD 2014
PB McGraw-Hill Education
PP New York, NY
SN 9780071821377
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102565803
RD 2021/12/05
AB The physics of flow underlies the behavior of all fluids. Liquids, such as plasma and crystalloid solutions, and gases, such as oxygen and sevoflurane, are all considered to be fluids. Flow (F) is defined as the quantity (Q, mass or volume) of a given fluid that passes by a certain point within a unit of time (t), most commonly expressed in liters per second. This relationship can be expressed by the equation F = Q/t. Fluid flow requires a pressure gradient (ΔP) between two points such that flow is directly proportional to the pressure differential. Higher pressure differences will drive greater flow rates. The pressure gradient establishes the direction of flow.