METHACHOLINE CHALLENGE TEST

Question 1

HOLD MEDS PRIOR TO CHALLENGE

Answer 1

SHORT ACTING BD : 8 HOURS
MEDIUM (ATROVENT): 24 HOURS
LABA:  48 HOURS
SPIRIVA : 1 WEEK
LUEKOTRIENE MODIFIERS : 24 HOURS MONTELUKAST
THEO:  24 HOURES

Question 2

ABSOLUTE CONTRAINDICATIONS

Answer 2

SEVERE AIRFLOW LIMITEATION
HEART ATTACK OR CVA IN 3 MONTHS
UNCONTROLLED HTN
AORTIC ANEURYSM

Question 3

PC20

Answer 3

20% FALL IN FEV1
< 1.0 MODERATE TO SEVERE
1-4  MILD
4-16 BORDERLINE
> 16 NORMAL BRONCHIAL HYPERRESPONSIVENESS