
Question 5
- What is the difference between
the PC20 and the PC200 for a substance?

- What is the difference between the PC20 and the PD20?

- Estimate for each of the subjects in the
graph when the FEV1 has
declined by 20%.

- Are we dealing with a PC20 or a PD20 in the graph?

- Does it matter for the dose-response curve
whether an agonist has a very short (minutes) or long
(hours) half-life?

- Does histamine have a short or a long half-life?
