Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: Because she was weak and only managing 6 breaths per minute , which is half the minimum needed for a healthy adult , they put her on oxygen and on a respirator . Because of the respirator , which means having a breathing tube inserted down the throat , they had to put her on a sedative - respirator tubes are very uncomfortable and makes most people choke and gag - the sedative is necessary for comfort and to keep people from panicking over the tube . When we arrived at the ICU , we found her sedated , barely responsive , on a respirator and with a jungle of tubes , wires , iv pumps and equipment all around her .

Question: What may be the reason why someone is n't getting enough oxygen ?
They have a respiratory infection .
The person may be managing less than the minimum breaths per minute for a healthy adult.