How many times the patient should be instructed to breath normally before FVC maneuver
4
5
"Asks the patient to inhale slowly and maximally., Asks the patient to exhale slowly and maximally. " this maneuver is:
SVC
15
"FEV1%= actual FEV1/ Predicted FVC " is this right?
NO
15
How to determine normal values in PEF?
from the personal best
15
PEF predicted value depends on:
age, gender, height
15
the rate in MVV maneuver is
rate is 90–110 bpm.
15
MVV estimated= ?
actual FEV1 x 40
15
MVV% = ?
Actual MVV/ Estimated MVV x 100
15
What are the two criteria for positive BD?
1- FVC post - FVC pre > 200 ml OR FEV1 post – FEV1 pre > 200 ml
15
What are the two criteria for positive BD?
1- FVC post - FVC pre > 200 ml OR FEV1 post – FEV1 pre > 200 ml AND 2- he percentage change in the pre & post bronchodilator values in either FEV1 or FVC must
15
hyperinflation is when TLC more than
120
15
after the patient expired as forcefully and rapidly as possible in FVC maneuver, he/she should: