The body goes into shock when oxygen delivery and waste removal fails.

• A. False
• B. True
• C. Only oxygen delivery matters
• D. Only waste removal matters

Answer: (B)

When tissues don’t receive enough oxygen and can’t clear metabolic wastes, cells can’t produce energy effectively. That lack of oxygen pushes cells toward less efficient anaerobic metabolism, causing lactic acid buildup and overall metabolic dysfunction. At the same time, poor perfusion hinders the removal of carbon dioxide and other wastes, worsening acidosis and tissue injury. Shock arises from this combination: inadequate oxygen delivery together with impaired waste removal leads to widespread cellular hypoxia and organ failure. So the statement is true because both oxygen delivery and waste clearance are essential, and failure of either can contribute to shock. The other ideas aren’t correct because it isn’t just about oxygen supply or just waste removal—both are involved in the development of shock.