In a client with amyotrophic lateral sclerosis (ALS) and respiratory distress, which finding is the earliest sign of reduced oxygenation? decreased heart rate increased blood pressure decreased level of consciousness (LOC) increased restlessness

Explanation;

Amyotrophic lateral sclerosis; This is a  neurodegenerative  condition which affects  the  nerve cells (neurons) in the brain and the spinal cord.

Amyotrophic lateral sclerosis and respiratory distress Increases restlessness,  this condition  results from insufficient  oxygen flow to the brain. As the body tries to compensate for insufficient oxygenation, the heart rate increases and blood pressure decreases.  Sufficient oxygen does not reach to the brain.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%