What is pharmacokinetics?
Study of how drugs move through the body; includes absorption, distribution, metabolism, and elimination.
What is pharmacodynamics?
Study of what a drug does to the body; generally determined by the drug’s affinity and activity at its site of action, often a receptor.
Define:
Bioavailability
Ability of a drug to be absorbed and used by the body.
What is the half-life of a drug?
The time it takes for the amount of a drug’s active substance in the body to reduce by half.
What is the first pass effect?
Pharmacological phenomenon where a drug undergoes metabolism at a specific location in the body, reducing the availability of the drug to travel to distant sites.
What is the cytochrome P450 system?
Group of enzymes that metabolizes drugs; largely concentrated in the liver.
List strong inhibitors of the cytochrome P450 system.
List moderate inhibitors of the cytochrome P450 system.
List strong inducers of the cytochrome P450 system.
List moderate inducers of the cytochrome P450 system.
What is the function of glomerular filtration?
Filters waste and excess fluid from the blood into the urine.
What does the glomerular barrier restrict?
Restricts passage of plasma proteins, such as albumin, red blood cells, and other large blood constituents.
Which drugs bind to albumin?
What happens to glomerular filtration rate with aging?
Decreases by approximately 1% per year.
What is the primary effect of NSAIDs?
Inhibit cyclooxygenase
(an enzyme that produces prostaglandins)
What are prostaglandins?
Hormone-like substances that affect several bodily functions.
e.g., inflammation, pain
What are the two variants of cyclooxygenase?
Which medications should be avoided with NSAIDs?
Which populations should avoid NSAIDs?
What does a Gram stain categorize?
Categorizes bacteria into either gram-negative or gram-positive bacteria.
What color do gram-positive bacteria appear after Gram staining?
Purple
What color do gram-negative bacteria appear after Gram staining?
Pink
Which bacteria cannot be visualized with a Gram stain?
List examples of gram-positive bacteria.