Lisa is a 19-year-old college student who recently began experiencing symptoms of lactose intolerance. She recognizes the importance of consuming adequate dietary calcium but does not want to further aggravate her gastrointestinal system.

Lactose intolerance is a disease caused by the inability to digest lactose, a sugar found in milk.

Explanation:

People suffering from lactose intolerance may have one or several symptoms simultaneously. These discomforts are triggered after the ingestion of milk, its derivatives or products containing lactose. These are:

Sickness

Abdominal pain

Abdominal swelling

Abdominal sounds or borborigmos

Abdominal distension

Diarrhea

Gas

Stool with foul odor

Weightloss

Constipation due to decreased bowel motility

. ph changes the ability of them he enzyme to dissolve in water.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.