Respiratory exam Flashcards Preview

Nursing Semester 2 (Med surg & Peds) > Respiratory exam > Flashcards

Flashcards in Respiratory exam Deck (224)
Loading flashcards...
1

Purpose of oxygen therapy:

use lowest fraction of inspired oxygen (FiO2) to have an acceptable blood oxygen level without causing harmful side effects

2

Most patients with hypoxia require an oxygen flow of:

2-4L/min via nasal cannula or up to 40% Venturi mask to achieve an oxygen saturation of at least 95%

3

For a patient who is hypoxemia and has chronic hypercarbia, the FiO2 delivered should be titrated to..

correct the hypoxemia to achieve generally acceptable oxygen saturations in the range of 88%-92%

4

Best measure for determining the need for oxygen therapy and evaluating its effects:

ABG (arterial blood gas)

5

Parameters to monitor for hypoxemia include:

level of consciousness

respiratory pattern and rate

pulse oximetry

6

Lung injury from oxygen toxicity (same as ARDS) include problems such as

dyspnea

nonproductive cough

chest pain beneath the sternum

GI upset

crackles on auscultation

7

Prolonged exposure to high oxygen levels can cause:

atelectasis

pulmonary edema

hemorrhage

hyaline membrane formation may form

8

Notify the healthcare provider when PaO2 levels become:

greater than 90 mm Hg

9

Nitrogen purpose:

Nitrogen in air maintains patent airways and alveoli.

Prevents alveolar collapse

10

What happens during atelectasis?

When nitrogen is diluted, oxygen diffuses from the alveoli into the blood and the alveoli collapse

11

Atelectasis is detected as

crackles and decreased breath sounds on auscultation

12

Monitor the patient receiving high levels of oxygen closely for indications of:

absorptive atelectasis (new onset of crackles and decreased breath sounds) every 1-2 hours when oxygen therapy is started and as often as needed thereafter

13

Humidify delivery system when oxygen flow rate is:

higher than 4L/min

14

Humidifier or nebulizer must be changed

as per agency policy which ranges from 24 hours-every 7 days

15

Low flow systems have a low:

fraction if inspired oxygen (FiO2)

do not provide enough oxygen to meet the total oxygen need and air volume of patient.

part of tidal volume is supplied by the patient as he or she breathes room air

16

High flow systems have:

a flow rate that meets the entire oxygen need and tidal volume regardless of the patient's breathing pattern


used for critically ill patients

when delivery of precise levels of oxygen is needed

17

Low flow systems include:

nasal cannula

simple facemask

partial rebreather mask

non-rebreather mask

(oxygen is diluted with RA 21% oxygen, which lowers the amount actually inspired)

18

Nasal cannula (prongs) are used at which flow rates?

1-6L/min

Oxygen concentrations of 24% (1L/min) to 44% (6L/min) can be achieved

19

Nasal cannula is often used for:

chronic lung disease

any patient needing long-term oxygen therapy

20

Simple facemarks are used to deliver oxygen concentrations of and minimum flow rate:

40%-60% for short-term oxygen therapy or in an emergency

5L/min is needed to prevent the rebreathing of exhaled air

21

Partial rebreather masks provide oxygen concentrations of and flow rates:

60%-75% with flow rates of 6-11L/min

22

Non-rebreather masks provide/flow rate/purpose:

Highest oxygen level of the low-flow systems and can deliver an FiO2 greater than 90% depending on patient's breathing pattern

Used with patients whose respiratory status is unstable and who may require intubation

Flow rate is kept high 10-15L/min

23

High flow systems include/oxygen concentrations/flow rates:

Venturi mask

Aerosol mask

Face tent

Tracheostomy collar

T-piece

oxygen concentrations from 24%-100%

8-15L/min

24

Which O2 therapy delivers the most accurate oxygen concentration without intubation?

Venturi masks

25

Noninvasive positive-pressure ventilation is used to manage:

dyspnea

hypercarbia

acute exacerbations of COPD

cardiogenic pulmonary edema

acute asthma attacks

26

Bronchial (tubular, tracheal) characteristics:

High pitch

Loud amplitude

Inspiration < expiration

Harsh, hollow, tubular blowing

Trachea and larynx

27

Bronchovesicular characteristics:

Moderate pitch

Moderate amplitude

Inspiration=expiration

Mixed quality

Located over major bronchi

28

Vesicular characteristics:

Low pitch

soft amplitude

Inspiration > expiration

Rustling, like the sound of the wind in the trees

Located over peripheral lung fields

29

Fine crackles, fine rales, high-pitched rales association: (6)

Asbestosis

Atelectasis

Interstitial fibrosis

Bronchitis

Pneumonia

Chronic pulmonary disease

30

Fine crackles, fine rales, high-pitched rales character:

Popping, discontinuous sounds caused by air moving into previously deflated airways

hair being rolled between fingers near ear

"velcro" sounds late in inspiration