Which of the Following Statements About Buffer Solutions Is True

question 119

Multiple Choice

Which of the following statements about buffer solutions is true?

• A)They maintain a constant pH when bases are added to them but not when acids are added to them.
• B)They maintain a constant pH when acids are added to them but not when bases are added to them.
• C)They maintain a relatively constant pH of approximately 7 when either acids or bases are added to them.
• D)They maintain a relatively constant pH when either acids or bases are added to them.
• E)They are found only in living systems and biological fluids.

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Definitions:

Centrally Venous Catheter

A tube placed into a large vein in the neck, chest, or groin to administer medication or fluids, obtain blood tests, and directly obtain cardiovascular measurements.

Indwelling Urinary Catheter

An indwelling urinary catheter is a tube inserted into the bladder through the urethra to drain urine, often used for patients who cannot urinate independently.

Colostomy

A surgical procedure that creates an opening in the abdominal wall to allow for waste elimination through the colon to an external pouch.

Nasoenteric Feeding Tube

A type of feeding tube that is inserted through the nose and extends into the intestines to deliver nutrition directly to the gastrointestinal tract.