Question 1: Can you define functional residual capacity (FRC)?

Answer

Question 1: Can you define functional residual capacity (FRC)?

Answer: Functional residual capacity is the lung volume following a normal expiration.

Question 2: What is the importance of the FRC during apnoea?

Answer

Question 1: Can you define functional residual capacity (FRC)?

Answer: Functional residual capacity is the lung volume following a normal expiration.

Question 2: What is the importance of the FRC during apnoea?

Answer: The FRC provides a reservoir of oxygen within the lungs which, for a time, can continue to oxygenate the blood flowing through during apnoea.

Question 3: Can you name factors that may reduce FRC from the normal values?

Answer

Question 1: Can you define functional residual capacity (FRC)?

Answer: Functional residual capacity is the lung volume following a normal expiration.

Question 2: What is the importance of the FRC during apnoea?

Answer: The FRC provides a reservoir of oxygen within the lungs which, for a time, can continue to oxygenate the blood flowing through during apnoea.

Question 3: Can you name factors that may reduce FRC from the normal values?

Answer: Factors that may reduce FRC are:

• Moving from erect to supine
• Obesity
• Pregnancy
• Induction of anaesthesia