Understanding Shock: Pathophysiology and Types

What is the primary issue in shock at a cellular level?

• Cells stop producing lactic acid.

• Cells produce too much energy.

• Cells do not receive enough oxygen.

• Cells receive too much oxygen.

Why is aerobic metabolism preferred over anaerobic metabolism?

• It produces less energy.

• It does not require oxygen.

• It is faster than anaerobic metabolism.

• It produces more energy and no lactic acid.

What role does hemoglobin play in oxygen delivery?

• It blocks oxygen from reaching tissues.

• It converts oxygen into energy.

• It transports oxygen in the blood.

• It stores oxygen in the cells.

Which type of shock is characterized by increased oxygen extraction?

• Distributive shock

• Anaphylactic shock

• Septic shock

• Cardiogenic shock

What is a common barrier to oxygen delivery in distributive shock?

• Excessive oxygen in the blood

• Decreased blood pressure

• Thickened interstitial fluid

• Increased blood flow

What does a lower mixed venous oxygen saturation indicate?

• Increased oxygen return to the heart

• Decreased oxygen demand

• Decreased oxygen extraction

• Increased oxygen extraction

How is mixed venous oxygen saturation measured?

• By measuring oxygen in the lungs

• By measuring oxygen in the arteries

• By measuring oxygen in the brain

• By measuring oxygen returning to the heart

What is a consequence of prolonged lactic acidosis?

• Increased cellular energy

• Decreased cellular pH

• Decreased lactic acid production

• Increased oxygen levels

What happens to proteins in cells when the body becomes too acidic?

• They become more stable.

• They denature and degrade.

• They increase in number.

• They convert to energy.

Why is it important to differentiate types of shock?

• To increase lactic acid production

• To decrease oxygen delivery

• To avoid severe complications

• To prevent cellular energy production