Exam 1 Flashcards
1
Q
tidal volume
A
amount of air exhaled following normal inspiration
2
Q
crackles/rales
A
- fine to coarse bubbly sounds, associated with air passing through fluid or collapsed small airways
- not cleared by cough
- discontinuous
3
Q
wheezes
A
- high pitched whistling, narrow obstructed airways
- musical noise
- continuous
4
Q
rhonchi
A
- loud low pitched rumbling, fluid or mucous in airways
- can resolve with coughing or suctioning
- snore sound
- continuous
5
Q
stridor
A
- choking, children
- emergency
6
Q
bronchial
A
- high pitch
- normally heard over trachea
7
Q
bronchial vesicular
A
- medium pitch
- heard over mainstream bronchi
8
Q
vesicular
A
- low pitch
- heard over most of normal lung
9
Q
bradypnea
A
- rate of breathing is regular but abnormally slow
- less than 12 breaths/min
10
Q
tachypnea
A
- rate of breathing is regular but abnormally rapid
- greater than 20 breaths/min
11
Q
hyperpnea
A
- respirations are labored, increased in depth, and increased in rate
- greater than 20 breaths/min
- occurs normally during exercise
12
Q
apnea
A
- respirations cease for several seconds
- persistent cessation results in respiratory arrest
13
Q
hyperventilation
A
- rate and depth of respirations increase
- hypocarbia sometimes occurs
- removing CO2 father than it is produced by cellular metabolism
14
Q
hypoventilation
A
- respiratory rate is abnormally low and depth of ventilation is depressed
- hypercarbia sometimes occurs
- inadequate alveolar ventilation to meet demand
- not enough oxygen and/or too much carbon dioxide
15
Q
factors affecting oxygenation
A
- decreased oxygen carrying capacity
- hypovolemia
- decreased inspired oxygen concentration
- chest wall movement
16
Q
PaO2
A
80-100
17
Q
PaCO2
A
35-45
18
Q
SpO2 (oxygenation saturation)
A
greater than 95%
19
Q
EtCo2
A
35-45
20
Q
causes of hypoventilation
A
- medications
- sedatives
- alveolar collapse
21
Q
signs and symptoms of hypoventilation
A
- mental status changes (early sign)
- dysrhythmias
- cardiac arrest
- convulsions
- unconsciousness
- death
22
Q
causes of hyperventilation
A
- anxiety attacks (severe)
- infection/fever
- drugs
- acid-base imbalance (pH)
- aspirin poisoning
- amphetamine use
23
Q
signs and symptoms of hyperventilation
A
- rapid respirations
- sighing breaths
- numbness/tingling of hands/feet
- light-headedness
- loss of consciousness
24
Q
atelectasis
A
- collapsed alveoli
- prevents normal respiratory gas exchange
- can lead to lung collapse
25
Q
conditions associated with atelectasis
A
- immobility
- obesity
- sleep apnea
- chronic lung conditions
26
Q
hypoxia
A
- inadequate tissue oxygenation
27
Q
causes of hypoxia
A
- decreased hemoglobin levels/low oxygen-carrying capacity
- diminished oxygen concentration of inspired oxygen
- inability of tissues to get oxygen from blood
- decreased diffusion of oxygen from alveoli to blood-infections/pneumonia
- poor perfusion with oxygenated blood
- impaired ventilation from traumas
28
Q
signs and symptoms of hypoxia
A
- apprehension
- restless
- inability to concentrate
- decreased LOC
- behavioral changes
- difficultly lying flat
- cyanosis (late sign of hypoxia)