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Must be withdrawn gradually
Contraceptive Pill
Interacts with some hepatic enzyme inducers
Fibrinolytic drugs
Are used to treat cardiovascular thrombosis
Which drug interferes with the COX enzyme?
Aspirin
Heparin
Inhibits action of thrombin, Factors X & IX
Calcium Channel Blockers work by..
Reducing the force of contraction of the heart
Captopril blocks the formation of..
Angiotensin 2
Technique to diagnose a cardiac dysrhythmias..
ECG
Salbutamol acts on..
B-receptors