Which among the following is an example of crystalloids?

Correct option is D

Ans. (d)
Sol. Ringer lactate is a crystalloid solution, which means it contains electrolytes dissolved in water and can easily pass through semi-permeable membranes. Crystalloids are commonly used in fluid resuscitation and intravenous hydration. Ringer lactate is isotonic and used in treating dehydration, burns, and trauma.
Explanation of each option:
· (a) RBC (Red Blood Cells) – Cellular components, not crystalloids.
· (b) WBC (White Blood Cells) – Also cellular elements, not crystalloids.
· (c) Plasma – A colloid, containing larger proteins like albumin; not a crystalloid.