What are desirable characteristics of a barium suspension? 1. Rapid flow 2. Thick layering 3. Good mucosal adhesion

The desirable characteristic of Barium suspension are:

Thick layering

Explanation:

First know the meaning of the terms:

1. Rapid flow

2. Thick layering

3. Good mucosal adhesion/

1. Rapid flow : The lower the viscosity of the solution, more is its flow in the solution. For example : Honey has more viscosity so it flows slowly. On the other hand water flow faster.

2. Thick layering : layering is the deposition of one layer of the liquid over other. The deposited layer can be of different substance.

3. Mucosal Adhesion : It is the adhesion (attraction) between two materials, one of which is mucous. It is attractive force between the drug and the mucus inside the body.

Barium suspension:

It is not a Good mucosal adhesion material because of low solubility in water and lipid.

Only those solution are good in adhesion which have higher solubility in water.

It is widely used as the contrast media for the examination of gastrointestinal because of its Thick Layering Property. It has the consistency of thick glass. At room temperature it is called "warm thick milk"