Respiratory Emergencies and Thoracic Trauma Flashcards

1. Describe concepts related to the care of an ED patient experiencing a respiratory emergency 2. Describe various patient presentations related to respiratory emergencies 3. List interventions necessary for a patient presenting with a respiratory emergency (167 cards)

1
Q

define eupnea

A

normal breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

define tachypnea

A

rapid rate (depth is variable)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

define bradypnea

A

slow rate (depth is variable)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

define hyperventilation

A

increased depth regardless of the rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

define dyspnea

A

subjective sensation of difficult or labored breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

define orthopnea

A

sensation of dyspnea when laying down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

define apnea

A

absence of breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

define Kussmaul respirations

A

rapid and deep breathing without pauses

usually associated with acidosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

define Cheyne-Stokes respirations

A

rhythmic increasing and decreasing rate and depth of respirations, which includes brief periods of apnea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

nasal flaring

A

enlargement of nostrils during inspiration

early finding in children and infants, later in adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

retractions

A

inward movement of muscles of chest d/t reduced pressure w/in chest cavity

intercostal, substernal, suprasternal, supraclavicular

early finding in peds, later finding in adults

mild, moderate, severe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

tracheal tugging

A

inward movement of trachea during respiratory distress

common in pediatric population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

diaphragmatic breathing

A

use of abdominal muscles to breathe

normal in peds, early finding in adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

accessory muscle use

A

use of sternocleidomatoid, pectoralis major, trapezius, internal intercostal, and abd muscles

early finding in adult, not as strongly associated with peds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

grunting

A

noise made at end of respiration to increase end expiratory pressure to prevent alveoli from collapsing

more common in infants and small children

exhalation against closed glottis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

wheezing

A

musical sound

narrowing of smaller lower airways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

rhonci

A

snoring, low pitched sound

narrowing of larger airways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

crackles

A

grating sound

inflammation of pleural surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

stridor

A

harsh grating sound

upper airway obstruction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

ABG in respiratory acidosis

A

ph low
PaCO2 high
HCO3 normal or high w/ compensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

ABG in respiratory alkalosis

A

ph high
PaCO2 low
HCO3 normal or low w/ compensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

ABG in respiratory acidosis with metabolic compensation

A

ph low or normalizing
PaCO2 high
HCO3 high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

ABG in metabolic acidosis

A

ph high
PaCO2 normal or low w/ compensation
HCO3 low

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

ABG in metabolic alkalosis

A

ph high
PaCO2 normal or high w/ compensation
HCO3 high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
metabolic alkalosis with respiratory compensation
ph high or normalizing PaCO2 high HCO3 high
26
define PE
deep vein thrombosis or other material that dislodged and traveled to pulmonary vasculature and is obstructing pulmonary bloodflow
27
types of PEs
blood fat amniotic fluid air
28
blood clot PE
migrates from other part of body, usually R side of heart, pelvis, or DVT in legs
29
fat embolism
24-48 hours after long bone fx petechiae of chest and axilla
30
amniotic fluid embolism
shortly after delivery
31
air embolism
usually d/t inadvertent air injection in IV or with dive injuries
32
risk factors for PE
``` previous DVT surgery last 4 weeks estrogen use active, metastatic CA recent travel w/ immobility IV drug use age smoking hypercoagulable state ```
33
define PERC
Pulmonary Embolism Rule-out Criteria decrease pre-test probability to acceptable level so no further testing required
34
criteria for PERC
``` no hormone use <50 yo no DVT/PE hx no coughing blood no LE swelling unilaterally SpO2 > 94% HR < 100 no surgery/trauma last 28 days ``` no previous DVT = negative result
35
Wells Score overview
``` sx DVT = 3 PE likely = 3 HR > 100 = 1.5 immobilization of 3 days = 1.5 surgery last 28 days = 1.5 previous PE/DT = 1.5 hempotysis = 1 malignancy w/ tx last 6 mo or palliative = 1 ``` score <= 4 can r/o with dimer previous DVT = positive result
36
sx PE
``` sudden sob tachypnea, tachycardia cough w/ poss. hemoptysis diaphoresis, syncope, fever crackles accentuated S2 JVD, hypotension elevated ESR, dimer new RBBB, peaked P waves, depressed T waves ```
37
PE interventions
``` supp. O2 anticoags fibrinolytics/thrombolytics IV fluids vasopressors w/ hypotension ```
38
define acute bronchitis
viral inflammation of upper airways most common cause of antibiotic misuse
39
acute bronchitis overview
consider influenza can look like simple URI in first few days and is often associated w/ simple URI
40
sx acute bronchitis
dry, hacking, non productive cough progressing to productive cough > 5 days exacerbated at night, w/ deep inspiration, talking, laughing pleuritic cp fever unlikely
41
acute bronchitis interventions
OTC or Rx cough meds humidification bronchodilators corticosteroids
42
define bronchiolitis
viral infection, usually RSV, producing copious nasal secretions clinical syndrome in children < 2 yo
43
progression of bronchiolitis
upper resp prodrome followed by increased resp effort lower resp inflammation w/ wheezing/crackles self-limiting - distress peaks 5-7 days wheezing may last week+
44
sx bronchiolitis
- URI w/ dyspnea, cough - poor feeding, cranky, decreased alertness - tachypnea, apnea in infants - grunting, nasal flaring, retractions, cyanosis - wheezing
45
bronchiolitis interventions
suction nares supp. o2 bronchodilators admission of RR > 70
46
PNA overview
viral slower onset, more comment in winter bacterial rapid onset
47
most common bacteria in CAPS
streptococcus pneumoniae
48
most common bacteria in HCAPS
aerobic gram-negative
49
most common virus in viral PNA
RSV, influenza, parainfluenza
50
sx PNA
``` fever pleuritic chest pain productive cough tachypnea, tachycardia decreased breath sounds pleural friction rub hyporesonance, increased remitus ```
51
risk factors for PNA
hx ICU admission leukopenia alcohol abuse asplenia
52
interventions for PNA
stable, healthy can be sent home with abx, bronchodilators, oral hydration admitted: abx, O2, IV fluids, bronchodilators, maybe CPAP, BiPAP, intubation
53
define inhalation injury
burns to respiratory tract from fire in confined space or smoke exposure
54
inhalation injury overview
consider inhaled toxin exposure 2ndary to burning objects damage to cilia makes it difficult to clear secretions
55
sx inhalation injury
``` hoarse voice stridor wheezing facial burns, singed nasal hair carbonaceous sputum ```
56
assessing inhalation injuries
airway | coboxyhemoglobin
57
intervening for inhalation injuries
O2 airway poss. intubation
58
define asthma
chronic reactive airway disease with airway hyperreactivity, inflammation, and reversible airflow obstruction
59
asthma overview
can be life threatening status asthmaticus is a severe, refractory asthma attack
60
common asthma triggers
``` environmental URI exercise meds food additives, sulfites, tetrazine menses GERD cold, dry air (seasonal changes) ```
61
sx asthma
``` chest tightness cough WOB hyperresonance to percussion crackles prolonged expiratory time respiratory alkalosis (early) respiratory acidosis (late) exp wheeze (early), insp wheeze (late) decreased lower breath sounds hypoxia pulsus paradoxus ```
62
assessing asthma
peak flow
63
define peak expiratory flow rate
PEFR | objective measure of airflow
64
process of measuring peak flow
``` sit upright, legs dangling inhale fully, seal mouthpiece exhale fully note measurement repeat 3 times and record best ```
65
peak flow findings
70-90% of predicted value or personal best: use inhalers < 70%: seek medical attention 40-60%: moderate exacerbation < 40%: severe exacerbation
66
short-acting beta agonists in asthma
relax smooth muscles of bronchioles, producing bronchodilation tachycardia is side effect
67
types of short-acting beta agonists (asthma)
epi, racemic epi albuterol salmeterol levalbuterol
68
anticholinergics in asthma
inhibits contraction of bronchial smooth muscle and limits mucus secretions side effects: dry mouth, pupil dilation, increased HR, blurred vision
69
types of anticholinergics (asthma)
ipratropium
70
corticosteroids in asthma
anti-inflammatory and immunosuppressant effects, which: - reduce airway inflammation - inhibit mucus production - decrease airway swelling and hyperactivity
71
types of corticosteroids (asthma)
inhaled: - dexamethasone - beclomethasone - triamcinolone oral: prednisone IV: methylprednisone
72
magnesium sulfate in asthma
inhibits smooth muscle contraction decreases release of histamine inhibits acetylcholine release
73
metered dose inhaler (MDI)
drug suspended in liquid propellant use of space recommended
74
spacer (asthma)
increase vaporization of particles and increase lung penetration while decreasing loss of med in air or mouth 85% of meds delivered compared to 15% always with MDI
75
dry powder inhaler (asthma)
alternative for people who cannot use MDI
76
nebulizer (asthma)
preferred if unable to sit upright or too sick for MDIs and spacers best delivery method upright to allow for deep ventilation and maximal diaphragmatic movement if HR increases > 20bpm, stop
77
dc instructions for asthma
``` avoid triggers hypoallergenic bedding air purifiers wash linens q week in hot water carpet removal pets outside inside with air conditioning during early morning and midday meds as directed stop smoking pretreat before exercise ```
78
define COPD
preventable, treatable disease characterized by progressive airflow limitation abnormal inflammation response that is not fully recoverable
79
types of COPD
chronic bronchitis | enphysema
80
define chronic bronchitis
cough and sputum production for at least 3 months during 2 consecutive years
81
define emphysema
alveoli destruction
82
sx chronic bronchitis
``` "blue bloater" productive cough stocky onset 40-50 yo normal RR hypoxemia increased PaO2 cyanosis polycythemia cor pulmonale peripheral edema risk for PE enlarged HR ```
83
sx emphysema
``` "pink puffer" cough uncommon thin onset 50-70yo tachypnea PaO2 normal or slightly low PaCO2 low or normal until end barrel chest accessory muscles tripod position pursed-lip breathing hyporesonance lung over inflation and low diaphragm ```
84
interventions for COPD
``` CPAP, BiPaP bronchodilators high folwer IV fluids monitor arrhythmias IV corticosteroids abx prn ```
85
dc instructions for COPD
``` immunize avoid exposures to URIs small, frequent meals for max chest excursion adequate hydrations for moist secretions stop smoking ```
86
types of noninvasive positive pressure ventilation
CPAP | BiPAP
87
define CPAP
constant, mild airflow at single set pressure to keep airway open requires tight fitting mask
88
define BiPAP
time-cycle airflow w/ two levels of pressure lower pressure inhaling higher pressure exhaling requires tight fitting mask
89
CPAP/BiPAP inclusion criteria
``` hemodynamically stable normal mental state spontaneously breathing tolerate mask, sit upright handle secretions sx resp distress ```
90
advantages of CPAP/BiPAP
- improves pulm fxn and gas exchange - decreases inspiratory threshold pressure - decreases venous return to heart - limits workload - increases functional residual capacity - may affect CO
91
risks of CPAP/BiPAP
decrease venous return to heart which could decrease CO in dehydrated patient barotrauma aspiration if vomiting
92
define pulmonary edema
accumulation of fluid in extravascular spaces of lungs
93
types of pulmonary edema
cardiogenic: high pulmonary capillary pressure noncardiogenic: pulmonary capillary permeability
94
common causes of pulmonary edema
``` ARDS renal failure (fluid overload) submersion injury head trauma, szs rapid re-expansion of lung (scuba) high altitude toxic gas inhalation OD ```
95
sx pulmonary edema
``` sob tachypnea, tachycardia anxiety, agitation sensation of suffocation cough, crackles, wheeze diaphoresis pink, frothy sputum ```
96
pulmonary edema interventons
``` high-flow IV, careful fluids CPAP/BiPAP intubation w/ low tidal volumes supportive treatment ```
97
define ARDS
form of noncardiogenic pulmonary edema inflammatory syndrome characterized by diffuse alveolar injury in which increased permeability of alveolar=capillary barrier allows protein-rich fluid to pass into alveoli, resulting in severe hypoxemia.
98
ARDS overview
refractory to high concentrations of oxygen associated with loss of surfactant, alveolar collapse, and decreased lung compliance
99
direct causes of ARDS
``` aspiration of gastric contents PNA toxic inhalation pulm contusion submersion injury ```
100
indirect causes of ARDS
``` sepsis multiple trauma massive transfusion severe pancreatitis OD burns DIC shock ```
101
sx ARDS
``` dyspnea, tachypnea, cysnosis tachycardia anxiety, restless, agitated accessory muscle use fever or hypothermia ```
102
how to assess ARDS
CXR | bronchoscopy with lavage
103
interventions for ARDS
intubate, PEEP low tidal volumes careful fluids ICU
104
complications of ARDS
acute renal failure hypo/er glycemia MODS VAP
105
define pleural effusion
abnormal collection of fluid in pleural space not a disease
106
causes of pleural effusion
``` HF nephrotic syndrome malnutrition PNA infected wound lung abscess tumor fibrosis trauma infection ```
107
sx pleural effusion
``` dyspnea cough CP dullness to percussion decreased breath sounds pleural friction rub decreased chest expansion on affected side ```
108
pleural effusion interventions
needle thoracentesis or chest tube if large and compromising respirations
109
define airway obstruction
blockage in airway
110
airway obstruction in larynx
large obstructions: complete obstruction with lack of coughing, airway sounds or airway movement smaller obstructions: hoarseness and aphonia
111
airway obstruction in trachea
large obstruction: complete airway obstruction with lack of coughing, airway sounds, airway movement smaller obstructions: wheezing similar to asthma
112
airway obstruction in bronchi
cough, unilateral wheeze, unilateral breath sound decrease 80-90% aspirated objects are in bronchi adults: usually R bronchus peds: R or L equally
113
airway obstruction interventions
``` heimlich CPR direct visualization largyncoscope with Magill forceps endoscope for partial/bronchial ```
114
define spontaneous pneumothorax and simple pneumothorax
accumulation of air in pleural space causing partial or complete collapse of lung as air accumulates with increasing pressure
115
define open pneumothorax
penetrating wound allowing air to enter thorax and loss of normal negative intrathoracic pressure
116
causes of spontaneous pneumothorax
no trauma young, thin, tall males or in smokers with pulm disease
117
causes of simple pneumothorax
blunt trauma
118
causes of open pneumothorax
penetrating trauma
119
sx spontaneous pneumothorax
``` sudden pleuritic CP dyspnea, tachypnea cough decreased BS hyperresonance ```
120
sx simple pneumothorax
``` CP dyspnea, tachypnea cough decreased BS hyperresonance ```
121
sx open pneumothorax
``` visible chest wound resp distress sucking sound asymmetrical chest expansion bubbling of blood around wound subcutaneous emphysema ```
122
intervene for spontaneous pneumothorax
high Fowler monitor, pain control chest tube at 5 or 6th ICS mid axillary
123
intervene for simple pneumothorax
high Fowler monitor, pain control oxygen if small enough chest tube if larger
124
intervene for open pneumothorax
ABCs 3 sided occlusive dressing chest tube
125
define tension pneumothorax
air enters pleural space during inspiration and can't escape during exhalation
126
complications of tension pneumothorax
life threatening pressure shifts mediastinum and collapses opposite lung, decreasing cardiac output
127
define hemothorax
accumulation of blood in pleural space, usually accompanied by pneumothorax
128
complications of hemothorax
massive hemothorax can accumulate more than 1500 ml blood in chest cavity
129
causes of tension pneumothorax
blunt, penetrating trauma | mechanical ventilation
130
causes of hemothorax
blunt, penetrating trauma
131
sx tension pneumothorax
``` severe resp distress decreased CO hyperresonance distant heart sounds JVD, deviated trachea ```
132
sx hemothorax
``` resp distress pain on inspiration asymmetric chest wall movement hypovolemic shock decreased breath sounds dull percussion ```
133
intervene for tension pneumothorax
needle decompression | immediate chest tube
134
intervene for hemothorax
ABCs, fluids, blood chest tube emergent surgery with large accumulations
135
breath sounds in fluid and air accumulation
fluid: decreased air: decreased
136
fremitus in fluid and air accumulation
fluid: absent air: decreased
137
lung percussion in fluid and air accumulation
fluid: hyperesonance air: hyperresonance
138
pain in fluid and air accumulation in lungs
fluid: dull ache on affected side air: sharp pain, maybe radiating to shoulder on affected side
139
egophany in fluid and air accumulation in lungs
fluid: near top of fluid line air: not present over air
140
fractures of 1st, 2nd ribs associated with
``` injury to: lungs aortic arch vertebra column suclavian artery, vein ``` rare - needs significant force
141
lower rib fractures associated with
splenic injury (L) hepatic injury (R)
142
pediatric considerations with rib fractures
carilaginous ribs not easily fractured but may have significant trauma consider abuse
143
geriatric considerations with rib fractures
lack pulmonary reserves to compensate for rib fractures
144
complications of rib fractures
diaphragmatic tears, liver or splenic injuries and associated bleeding with low rib fractures cardiac or vascular damage from sternal fractures
145
intervene for rib fractures
monitor resp status restrict activity pain admission for geriatrics
146
define flail chest
2 or more adjacent fractured ribs in 2 or more locations or detachment of sternum
147
overview of flail chest
life threatening impaired ventilation caused by loss of bellows effect (less negative intrapleural pressure to expand lungs) and associated with pulm contusion dead space and atelectasis
148
sx flail chest
``` paradoxical chest movement cp resp distress hemo/pneumothorax subcutaneous emphysema bony crepitus increased resp effort decreased tidal volume impaired cough hypoxia ```
149
intervene for flail chest
mechanical ventilation with PEEP chest tube if hemo/pneumothorax correct hypovolemia surgery
150
define pulmonary contusion
injury of lung resulting in edema and blood collection in lung parenchyma
151
causes of pulmonary contusion
severe blunt trauma high-velocity missile trauma significant barotrauma
152
sx pulmonary contusion
``` resp distress chest pain chest wall bruising cough, hemoptysis decreased breath sounds crackles, wheezes other chest injuries ```
153
intervene for pulmonary contusion
high flow intubation or CPAP/BiPAP careful fluids pain
154
define ruptured diaphragm
abdominal contents herniate into chest and compress lungs, heart, aorta, vena cava
155
causes of ruptured diaphragm
penetrating or blunt trauma
156
where do most ruptured diaphragms occur?
L because liver protects R side
157
sx ruptured diaphragm
dyspnea, orthopnea dysphagia bs in chest abd pain radiate to L shoulder (kehr sign) decreased breath sounds undigested food/fecal matter in chest tube
158
assessing ruptured diaphragm
``` FAST exam CXR will show: -elevated L diaphragm -herniation of bowel into chest -NG or OG tube coiled in chest ```
159
intervene for ruptured diaphragm
ABC NG/OG tube emergent surgical repair
160
causes of concern for chest drainage systems
initial output >1500 ml continued output >200 ml/hr
161
bubbling or absent fluctuations in chest drainage system
lung re-expanded or obstruction in system
162
vigorous, continuous bubbling in chest drainage system
large air leak on patient or drainage system
163
disconnection of chest drainage system
clamp, clean, reconnect | assess, provider
164
accidental removal of chest drainage system
pressure dressing, occlusive | assess, provider
165
considerations for auto transfusion
significant blood loss | blood < 4-6 hrs
166
advantages of auto transfusion
readily available no risk of rxn fresh, warm, whole blood
167
contraindications for auto transfusion
risk of enteric contamination ruptured diaphragm lower chest injury penetrating trauma