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Red Blood Cell Viability and Preservation Quiz

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Red Blood Cell Viability and Preservation Quiz

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Questions and Answers

Which of the following is the correct composition of red blood cells?

40% protein, 52% lipid, 8% carbohydrate

8% lipid, 40% carbohydrate, 52% protein (correct)

40% lipid, 8% carbohydrate, 52% protein

8% protein, 52% lipid, 40% carbohydrate

Which of the following biochemical changes is NOT associated with loss of red blood cell viability upon storage?

Loss of red blood cell function

Decreased pH

Decreased glucose consumption

Increased ATP level (correct)

Which red blood cell preservative has a storage time of 35 days?

CPD

ACD

AS-1

CPDA-1 (correct)

Which of the following is NOT relatively permeable to the RBC membrane?

<p>Water</p> Signup and view all the answers

What percentage of platelets is sequestered in the spleen as functional reserve after being released from the bone marrow?

<p>30%</p> Signup and view all the answers

Study Notes

Red Blood Cell Composition

Red blood cells are composed of a protein matrix, membranous lipids, and a high concentration of hemoglobin.

Biochemical Changes in Red Blood Cells

Upon storage, red blood cells undergo various biochemical changes, including depletion of ATP and 2,3-DPG, increase in lactate levels, and oxidative stress, but NOT an increase in glutathione levels.

Red Blood Cell Preservatives

CPDA-1 (citrate-phosphate-dextrose-adenine) is a red blood cell preservative with a storage time of 35 days.

Red Blood Cell Membrane Permeability

RBC membranes are relatively impermeable to Na+ ions.

Platelet Sequestration

Approximately 20-40% of platelets are sequestered in the spleen as a functional reserve after being released from the bone marrow.

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Description

Test your knowledge on red blood cell viability and preservation with this quiz. Answer questions about the biochemical changes associated with loss of red blood cell viability and identify the red blood cell preservative with a storage time of 35 days. Challenge yourself and learn more about red blood cell preservation.