Practice Q Flashcards
What is local anaesthetics cellular mechanism of action?
Inhibits sodium getting into cell
Some disadvantages of local anaesthetics?
Hypotension & arrhythmias
Anaesthetics are usually fat soluble meaning they can..
Cross the blood brain barrier
What are the disadvantages of Ketamine?
High BP
What are the disadvantages f Thiopental?
Rapid awakening and long lasting sedation
Cell Membrane
Likely target for a drug to act on
Which drug binds to an enzyme to cause its actions?
Aspirin
Agonist
Binds to a receptor and causes a response
Glyceryl Trinitrate
Via spray
Via transdermal patch
Sublingually
Consider the oral administration of drugs:
The drug should be largely lipid soluble
Phase 1 Reactions:
Products can be more chemically active the parent drug
If a patient has cirrhosis of the liver
The plasma half-life will increase
Facilitated Diffusion:
Can become saturated
Inhibitory Neurotransmitter in the brain
GABA
Gylcine
Hypothroidism:
Can be caused by iodine deficiency
Glucocorticoids
Must be withdrawn gradually