In addition to crystalloids, what is the other type of fluid used for intravenous drips?

Colloids are a type of intravenous fluid used in clinical practice, alongside crystalloids. Unlike crystalloids, which are solutions of small molecules that can easily pass through vascular membranes, colloids contain larger molecules or particles that help to increase oncotic pressure within the blood vessels. This characteristic makes colloids particularly effective in situations where it is necessary to expand blood volume and maintain blood pressure, such as in cases of severe dehydration or shock.

Colloids include substances such as albumin, dextran, and hydroxyethyl starch. They are designed to remain within the vascular compartment longer than crystalloids, which can diffuse into tissues. This property gives colloids an essential role in fluid resuscitation and managing conditions requiring rapid volume replacement.

The other options presented are not considered standard types of intravenous fluids. Lyophilized fluids refer to freeze-dried products often requiring reconstitution, suspensions involve undissolved particles in a liquid, and emulsions are mixtures of fats and water that are not typically used as IV fluids in this context.