APoE Quiz 7

"Altitude-induced hyperventilation leads to respiratory acidosis. At altitude, the oxyhemoglobin dissociation curve shifts to the right."

Both statements are false.

The major factor that drives the acute altitude-associated decrease in VO2max is

Inadequate alveolar PO2

"Which track athlete would most likely excel in competition in Denver, Colorado (elevation 1,610 m)?"

800 m runner

Which of the following activities would be most negatively affected by travelling to altitude (acutely)?

10k run

"At altitude, the oxyhemoglobin dissociation curve shifts to the right. The decreased PO2 gradient between blood and muscle significantly limits exercise capacity at altitude. "

"Statement 1 is false, statement 2 is true"

"As a result of acutely travelling to high altitudes, what happens to the shape of the oxyhemoglobin dissociation curve? What does this mean?"

Shifts to the left; Hemoglobin molecules are highly saturated with oxygen even at low PO2.

Decompression Sickness is primarily caused by which gas?

Nitrogen

Based on Boyle's Law, if an individual were to take a breath (~2 L) at 33ft and hold their breath to the surface, the volume of air would be __________.

~4 L

This condition that results in indivdiuals becoming cognitively impaired at greater depths is referred to as what?

Inert gas narcosis