Assessing breath sounds Flashcards
Wheezing: sounds:
- high-pitched, musical, whistling sound
- best heard initially on exhalation
Wheezing is an indication of:
swelling & constriction of the inner lining of the bronchioles
Wheezing is usually heard in what conditions?
Asthma, emphysema, & chronic bronchitis.
May also be heard in pneumonia & CHF
Rhonchi: sounds:
- snoring or rattling
Rhonchi is an indication of:
obstruction of the larger conducting airways of the respiratory tract by thick secretions of mucous
Rhonchi often heard in what conditions?
Chronic bronchitis, emphysema, aspiration, & pneumonia.
One characteristic of rhonchi:
the quality of sound changes if the person coughs or sometimes even when the person changes position.
Crackles (rales): sound:
- bubbly or crackling
- heard during inhalation
What causes the sound of Crackles?
fluid that has surrounded or filled the alveoli or very small bronchioles.
Crackles often heard in what conditions?
pulmonary edema & pneumonia
Decreased oxygen in the bloodstream typically defined as an SpO2 of <94%
hypoxemia
Shortness of breath
dyspnea
complete respiratory arrest (no longer breathing)
apnea
a reduced oxygen delivery to the tissues
hypoxia
a drug that relaxes the smooth muscle of the bronchi and bronchioles and reverses bronchoconstriction
Bronchodilator (Beta2)