Sodium

Question 0

What is the concentration of Na in a L of normal saline?

Answer 0

154

Question 1

What is the concentration of Na in a L of half normal saline?

Answer 1

77

Question 2

What is the concentration of Na in a L of Ringer’s lactate?

Answer 2

130

Question 3

What is the concentration of Na in a L of 3% NaCl?

Answer 3

513

Question 4

What is the result of giving a patient 3% NaCl?

Answer 4

Osmotic removal of water from the intracellular space

Question 5

What is the concentration of Na in a L of D5W?

Answer 5

Zero

Question 6

D5W is ________.
A. Hypotonic
B. Isotonic
C. Hypertonic

Answer 6

A

Question 7

0.45% NaCl is ________.
A. Hypotonic
B. Isotonic
C. Hypertonic

Answer 7

A

Question 8

Normal Saline is ________.
A. Hypotonic
B. Isotonic
C. Hypertonic

Answer 8

B

Question 9

Ringer’s Lactate is ________.
A. Hypotonic
B. Isotonic
C. Hypertonic

Answer 9

B

Question 10

3% NaCl is ________.
A. Hypotonic
B. Isotonic
C. Hypertonic

Answer 10

C

Question 11

What is the equation for serum osmolality?

Answer 11

(2 x Na) + (glucose/18) + (BUN/2.8)

Units: 
Serum osmolality = mOsm/kg
Na = mEq/L
Glucose = mg/dL 
BUN = mg/dL