At What Exercise Level Would the Alveolar-Arterial PO₂ Difference Be

question 24

Multiple Choice

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

• A) It will increase when 40% or more of maximum oxygen consumption is reached
• B) It will increase when 60% or more of maximum oxygen consumption is reached
• C) It will start to decrease when 40% or more of maximum oxygen consumption is reached
• D) It will start to decrease when 60% or more of maximum oxygen consumption is reached

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Definitions:

Radiopaque

Describes substances that do not allow the passage of X-rays or other forms of radiation, thereby appearing white or light on radiographic images.

Ankylosis

The abnormal stiffening and immobility of a joint due to fusion of the bones.

Acetabulum

The socket in the pelvic bone that receives the head of the femur, forming the hip joint.

Achondroplasia

A genetic disorder characterized by dwarfism due to an abnormality in the conversion of cartilage into bone, particularly in the long bones.