Practical 2: Drug effects on the Autonomic nervous system Flashcards
is noradrenaline released from the sympathetic or parasympathetic nervous system
sympathetic
what does the sympathetic nervous system do to the heart and lungs
increases the rate and force of contraction
results in dilatation in the lung airways
what does asthma result in
bronchoconstriction and airway obstruction
what does noradrenaline activate
beta 2 adrenoceptors to initiate bronchodilatation
what is salbutamol
a selective agonist at beta 2 adrenoceptors
for the sphygmomanometer how far must the cuff be inflated to
180mmHG
when using the diaphragm on the head of the stethoscope to listen to the korotkow sounds, what is the SBP
the systolic blood pressure is the pressure at which tapping sounds begin
what is the DBP when listening with the stethoscope
the diastolic blood pressure is the pressure at which thumping changes to muffled sounds or sounds disappear altogether
how do you work out the pulse pressure
SBP - DBP
systolic blood pressure - diastolic blood pressure
what does a peak flow meter measure
the maximum rate of airflow during forced expiration in litres/minute
in order to produce reproducible results with the peak flow meter what must you do
adopt an upright structure and make a maximal inspiration first
what is meant by PEFR and units
peak expiratory flow rate, litres per minute
produced by expiring as forcibly as possible
what is the formula for standard error
standard deviation/root n
were there any signs or symptoms for th placebo
no
where there any signs or symptoms for the salbutamol
shaky hands
