Physiologic Factors of Drug Distribution: Chapter 4 Overview

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What is drug distribution?

The reversible transfer of drug from one location to another within the body

Which of the following is NOT a factor affecting drug distribution?

Metabolism rate

In which organ would a drug typically have decreased distribution due to lower blood flow?

Skin

What property of a drug influences its distribution in the body?

<p>Lipid solubility</p> Signup and view all the answers

Where does drug distribution occur within the body?

<p>Both in the blood stream and the tissues</p> Signup and view all the answers

Which organ is likely to experience increased drug distribution due to higher blood flow?

<p>Liver</p> Signup and view all the answers

In which clinical problem would drug distribution be most affected due to decreased blood flow?

<p>Hypovolemic shock</p> Signup and view all the answers

In which organs would drug distribution be high due to increased capillary permeability?

<p>Liver, bone marrow, spleen</p> Signup and view all the answers

Which factor is NOT responsible for the low distribution of drugs in the blood brain barrier (BBB) and muscles?

<p>Presence of transporters</p> Signup and view all the answers

In which clinical issue would patients experience extreme increase in capillary permeability, leading to the high leakage of drugs into the tissues?

<p>Septic shock</p> Signup and view all the answers

Which type of protein is responsible for binding with particular drugs inside the blood?

<p>Albumin</p> Signup and view all the answers

High plasma protein binding leads to:

<p>Decrease in the amount of free drug</p> Signup and view all the answers

Which organ prevents the excretion of albumin into the urine and maintains it in the blood?

<p>Kidneys</p> Signup and view all the answers

Which type of capillaries have many tight junctions, reducing the ability of things to move out of the blood vessels into the tissue spaces?

<p>Continuous capillaries</p> Signup and view all the answers

Which factor is dependent on diffusion of the drug out of the blood into the tissue spaces?

<p>High lipophilicity of the drug</p> Signup and view all the answers

Which clinical problem leads to a decrease in blood flow and affects drug distribution to different tissues?

<p>Septic shock</p> Signup and view all the answers

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