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Routes of Drug Administration

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Questions and Answers

Why is parenteral administration suitable for certain drugs?

Because they have a long half-life.

Because they are only available in oily solutions.

Because they have a slower absorption rate.

Because they are ineffective by other routes. (correct)

What is a disadvantage of intravenous administration?

It permits a rapid effect.

It is not suitable for drugs in oily vehicles. (correct)

It is suitable for all types of drugs.

It is always a slow process.

When is intramuscular administration suitable?

For aqueous and oily solutions and suspensions of insoluble drugs. (correct)

For only oily solutions.

For all types of drugs.

For only aqueous solutions.

What is the purpose of adding a vasoconstrictor agent to a drug injected subcutaneously?

To retard the absorption of the drug Signup and view all the answers

What happens when a drug is injected in solution in oil or suspended in water or in oil through intramuscular administration?

Absorption is very slow and constant. Signup and view all the answers

What is a characteristic of intravenous administration?

It permits a rapid effect. Signup and view all the answers

What is the primary advantage of the inhalation route of drug administration?

Rapid absorption of the drug from the alveolar membrane Signup and view all the answers

Why is subcutaneous administration suitable for certain drugs?

Because they may be either in aqueous solutions or in the form of fine suspensions. Signup and view all the answers

Why are drugs sometimes injected directly into the spinal subarachnoid space?

To achieve local and rapid effects on the meninges or cerebrospinal axis Signup and view all the answers

What is the primary purpose of intracardiac injection?

To treat cardiac arrest Signup and view all the answers

What is the purpose of intra-articular injection?

To inject drugs directly into a joint Signup and view all the answers

What is the purpose of intraperitoneal injection?

To inject fluids or drugs in the peritoneal cavity Signup and view all the answers

What is a disadvantage of oral administration of drugs?

All of the above Signup and view all the answers

What is a characteristic of drugs administered sublingually?

They must be palatable and soluble Signup and view all the answers

Why is oral administration considered the safest and most convenient route?

Because it is the safest and most convenient Signup and view all the answers

What is a benefit of rectal administration of drugs?

Drugs are protected from the first pass metabolism Signup and view all the answers

Why are some drugs not suitable for oral administration?