Osmosis and the Treatment of TBI

3% normal saline is used to treat cerebral edema by creating an __________ gradient.

The saline solution has a higher osmotic pressure than the fluid inside the brain cells, causing water to move __________ the brain cells.

Reducing cerebral edema helps in decreasing __________ pressure, potentially preventing further damage to the brain tissues.

A hypertonic solution has a __________ concentration of solutes compared to normal body fluids.

When water is drawn out of brain cells into the bloodstream, it helps in __________ the overall cerebral edema.

How does reducing cerebral edema benefit the patient?

• It increases intracranial pressure

• It prevents further damage to brain tissues

• It increases the size of brain cells

• It causes more swelling in the brain

Why is 3% normal saline considered a hypertonic solution?

• It has a lower concentration of solutes than body fluids

• It has the same concentration of solutes as body fluids

• It has a higher concentration of solutes than body fluids

• It has no solutes

What happens to water in brain cells when a hypertonic solution is introduced?

• Water moves into the brain cells

• Water moves out of the brain cells

• Water remains in the brain cells

• Water moves equally in and out of the brain cells

What is the main function of 3% normal saline in the context of the video?

• To increase blood pressure

• To decrease cerebral edema

• To provide nutrients to brain cells

• To reduce internal bleeding

What happens to a cell placed in a hypertonic solution?

• The cell swells because water moves into the cell.

• The cell shrinks because water moves out of the cell.

• The cell remains the same size because the water movement is balanced.

• The cell divides due to the external pressure.