Pharmacokinetics Quiz

What does pharmacokinetics study?

• The effects of medications on the body

• How medications travel through the body

• The psychological impact of medications

• The cost-effectiveness of medications

Answer explanation

Pharmacokinetics studies how medications travel through the body, including absorption, distribution, metabolism, and excretion.

What are the most common sites for medication absorption?

• Skin and lungs

• Muscles and bones

• GI tract (enteral) and by injection (parenteral)

• Heart and brain

Answer explanation

The correct answer is GI tract (enteral) and by injection (parenteral) as these are the most common sites for medication absorption.

What determines how soon the medication will take effect?

• The color of the medication

• The rate of absorption

• The price of the medication

• The taste of the medication

Answer explanation

The rate of absorption determines how soon the medication will take effect by influencing how quickly the medication enters the bloodstream.

What determines the intensity of the medication effects?

• The shape of the medication

• The size of the medication

• The amount of absorption

• The smell of the medication

Answer explanation

The intensity of medication effects is determined by the amount of absorption, as it influences how much of the medication reaches the bloodstream and exerts its effects.

How does the route of absorption affect medication?

• It changes the medication's color

• It affects the medication's taste

• It affects the rate and amount of absorption

• It alters the medication's expiration date

Answer explanation

The route of absorption affects the rate and amount of medication absorbed into the body, impacting its effectiveness.

What must medications move through to be absorbed in the oral route of administration?

• Blood vessels

• Muscle tissue

• Cells of the GI tract

• Respiratory system

Answer explanation

To be absorbed in the oral route of administration, medications must move through the cells of the GI tract.

Which factor does NOT affect the absorption pattern of oral medications?

• Stability and solubility of the medication

• GI pH and emptying time

• Presence of food or other medications in the GI tract

• Color of the medication

Answer explanation

The color of the medication does not affect the absorption pattern of oral medications. Factors like stability, solubility, GI pH, emptying time, and presence of food or other medications in the GI tract play a role.

What is a characteristic of enteric-coated medications?

• They are absorbed in the mouth.

• They take longer to break down, extended release.

• They are more readily processed by the lungs.

• They are immediately dissolved in the stomach.

Answer explanation

Enteric-coated medications have a characteristic of taking longer to break down, providing extended release of the medication.

How are liquid medications processed compared to other forms?

• They are more readily processed by the intestines.

• They require special enzymes to be digested.

• They are not absorbed by the GI tract.

• They take longer to be processed by the body.

Answer explanation

Liquid medications are more readily processed by the intestines compared to other forms, allowing for quicker absorption and effectiveness.

Which form of drug has the fastest rate of absorption according to the diagram?

• Enteric-Coated Tablet

• Tablet

• Capsule

• Liquid

Answer explanation

The liquid form of drug has the fastest rate of absorption according to the diagram.