A hospital blood processing unit uses apheresis to concentrate red blood cells (RBCs) fromwhole blood donations. Whole blood is drawn from a donor at a rate of 100 g/min and passedthrough a centrifuge-based apheresis system. The whole blood contains 45% RBC and 1%WBCs and platelets by mass, with the remainder consisting of plasma. The separated plasma andnon-RBC components are returned to the donor at a rate of 90 g/min.The goal of the system is to collect a concentrated RBC fraction containing 80% red blood cells.Assume that red blood cells do not break down during processing and that no fluid loss occurs inthe system.(a) How long will it take to collect 100g of the concentrated RBC fraction?
A hospital blood processing unit uses apheresis to concentrate red blood cells (RBCs) fromwhole blood donations. Whole blood is drawn from a donor at a rate of 100 g/min and passedthrough a centrifuge-based apheresis system. The whole blood contains 45% RBC and 1%WBCs and platelets by mass, with the remainder consisting of plasma. The separated plasma andnon-RBC components are returned to the donor at a rate of 90 g/min.The goal of the system is to collect a concentrated RBC fraction containing 80% red blood cells.Assume that red blood cells do not break down during processing and that no fluid loss occurs inthe system.(a) How long will it take to collect 100g of the concentrated RBC fraction?
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter11: The Blood
Section: Chapter Questions
Problem 2SQE
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A hospital blood processing unit uses apheresis to concentrate red blood cells (RBCs) from
whole blood donations. Whole blood is drawn from a donor at a rate of 100 g/min and passed
through a centrifuge-based apheresis system. The whole blood contains 45% RBC and 1%
WBCs and platelets by mass, with the remainder consisting of plasma. The separated plasma and
non-RBC components are returned to the donor at a rate of 90 g/min.
The goal of the system is to collect a concentrated RBC fraction containing 80% red blood cells.
Assume that red blood cells do not break down during processing and that no fluid loss occurs in
the system.
(a) How long will it take to collect 100g of the concentrated RBC fraction?
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