Afferent Arteriole Flux Formula

Equation for calculate afferent arteriole flux is,

Q_a = (P_a - P_G) / R_a

where,
P_a = the afferent arteriole pressure,
P_G = the hydrostatic pressure within the glomerular capillaries,
R_a = the afferent arteriole resistance,
Q_a = the afferent arteriole flux.