2) An 85 year-old woman fell in her bedroom and fractured her hip. She was unable to get up and had no access to water. She was found 2 days later and brought to the ER. On exam, she is somnolent. VS include: BP 103/51 P 90 Wt 70 kg. Dry mucous membranes and decreased skin turgor are noted.

• 2) An 85 year-old woman fell in her bedroom and fractured her hip. She was unable to get up and had no access to water. She was found 2 days later and brought to the ER. On exam, she is somnolent. VS include: BP 103/51 P 90 Wt 70 kg. Dry mucous membranes and decreased skin turgor are noted.

• Labs:

• Na 158 BUN/creatinine 54/1.2

• Hct 54

• Urine osmolality 820 mOsm/kg

• Which of the following statements is FALSE?

• She is at risk of developing cerebral edema

• She could develop osmotic demyelination syndrome if corrected too rapidly

• Her free water deficit is approximately 6 liters

• She should be treated with 0.45% NS

• Her Na should be lowered to a target of 150 in the next 24 hours