What is the composition of hypotonic intravenous solutions such as 0.45% NaCl?
a. Fewer dissolved particles than blood
b. Approximately the same number of dissolved particles as blood
c. Higher concentrations of dissolved particles than blood
d. Electrolytes and dextrose
ANS: A
Hypotonic solutions have fewer dissolved particles than blood. Half normal saline does not contain dextrose.
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