Pharmaceutical Aerosols Quiz

Which of the following is an advantage of nitrogen in pharmaceutical aerosol?

• Its leakage is easily detected due to its characteristic odor.

• Its pressure inside the aerosol container remains constant upon use.

• It is soluble in water.

• It protects the packaged product from oxidation.

The droplet size of surface-coating aerosols is larger than that of space aerosols.

• True

• False

Which of the following is a characteristic of the three-phase systems of pharmaceutical aerosols?

• They are applicable mainly for liquefied gas propellant.

• Foam aerosols do not follow this system.

• They have two liquid phases.

• The active ingredients are soluble in the propellant.

Glass containers can not be used for aerosol packaging.

• True

• False

All of the following are correct regarding cascade impactor for aerosol evaluation, Except.

• It is used for measuring valve discharge rate.

• It depends on that the larger particles become impacted first.

• It depends on the change of the light intensity.

• It depends on that the smaller particles become impacted first.

What is the main characteristic for quick-breaking foams?

• The propellant is in the external phase.

• They follow a two-phase system.

• They are only aqueous systems.

• The propellant is in the internal phase.

Which of the following is correct regarding the metered valves in pharmaceutical aerosols?

• Its function may be achieved through using a dip tube with a steel ball.

• Its function may be achieved through using two valves separated by a reservoir. The opening of the two valve occurs simultaneously.

• It is designed to deliver a continuous amount of the medication.

• It is used in room deodorants.

A quality control test intended to indicate the hazard that is present when an aerosol is sprayed in an enclosed space in the presence of a flame, is referred to as.

• Flame extension test

• Toxicity test

• Flash point test

• Closed drum test

Curved bottom of the aerosol container is not suitable for propellants packaged under a high pressure.

• True

• False

Which of the following is a characteristic of the solution system of pharmaceutical aerosols?

• It is applicable for all propellant types.

• It is applicable only for the liquefied gas propellant.

• It consists of three phases.

• Foam aerosol is an example of it