Flashcards in Week 4 Peak Flow and MDI Deck (14):
what are the five consequences of poor inhaler technique?
reduced lung deposition of the active drug
increased side effects
decreased lung fxn
what % of adults with asthma use poor inhaler technique?
what does a peak flow meter measure?
the maximum expiratory flow rate
what are the effects of bronchoconstriction on peak flow
decrease peak flow rate
what does it mean to have a peak flow in the green zone?
peak flow reading is 80-100% of the patients normal peak flow (under control), regular maintenance medication schedule is continued
what are the 3 categories that correspond with an asthma patients asthma action plan
green, yellow, red
what does it mean to have a peak flow in the yellow zone?
measured peak flow is 50-80% of normal. presence of narrowing passages. patient should use their rescue inhaler or take a nebulizer treatment
what is a rescue inhaler
contains a different medication from maintenance inhaler. faster acting
what is a nebulizer?
administers medication in the form of mist that is easily inhaled
what does it mean to have peak flow in the red zone?
measured peak flow is less than 50%. indicates bronchoconstriction. rescue inhaler must be taken immediately and a hospital visit may be required
what are the two types of inhalers for respiratory medication?
metered dose inhaler (MDI)
dry powder inhaler (DPI)
what is a spacer?
makes it easier for some to use the MDI, not required for MDI use
what are the steps to using a DPI? (9)
1. remove cap/cover
2. load dose of medication (pre-prepared dose of powder in a capsule or a lever that is twisted until it clicks
3. breathe out as much air as possible
4. close lips around mouthpiece
5. breathe in (fast) until lungs completely filled
6. hold breath for 10 sec
7. slowly breath out
8. if more than one dose is required wait one full minute before second dose
9. place cover on DPI (avoid getting wet)