IV Fluids

Question 1

1/2 NS

Answer 1

.45% NaCl

Hypotonic solution

Question 2

Isotonic solutions

Answer 2

.9% NaCl (NS)
Lactated ringers
D5W

Question 3

Hypertonic Solutions

Answer 3

7.5% NaCl
D5 in 1/2 NS
D10
D50

Question 4

D5W is iso or hypotonic?

Answer 4

Initially it is isotonic until the dextrose is metabolized, then it is hypotonic.

Question 5

3 ways to assess fluid status

Answer 5

Urine output
Serum sodium
Urine osmolarity

Question 6

How much does the body’s water requirement increase for every degree C above 37?

Answer 6

100 - 150 ml/day

Question 7

At what point is an orthostatic test positive?

Answer 7

15 bpm change in pulse AND decrease of 10 or more in systolic BP.