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what are the lobes of the lungs? Right—>Left/Top—>Bottom
Right: Superior Lobe, Middle Lobe, Inferior Lobe
Left: Superior Lobe, Cardiac Notch, Inferior
layers of the lung pleura? outermost to innermost
parietal pleura - attaches to chest wall (parietal: lines body cavity walls that house organs)
visceral pleura - covers the lungs (visceral: lines organs)
pleural space - space between that contains serous fluid (reduces friction between membranes)
What is the path of the respiratory tract?
Oropharynx, Nasopharynx, Pharynx, Epiglottis, Larynx, Trachea, Carina, Bronchi, Bronchioles, Alveoli, Capillaries
How we breathe?
Negative Pressure System!!!
Inhalation: diaphragm contracts, pulls down the pleura = negative pressure
negative pressure = air flows into lungs
Exhalation: diaphragm relaxes, pushing back up the pleura = pushes air out
Why do we breathe? 2 reasons
1.) Carbonic Drive: high CO2 levels in the blood
a.) higher acidity due to lots of CO2, signals phrenic nerve to trigger diaphragm to contract
b.) phrenic nerve located at C3, C4, C5 —> controls diaphragm
2.) Hypoxic Drive: low O2 levels in the blood
a.) COPD patients who have high levels of CO2
^^ body is so used to high CO2, body says fugg it and now its low O2
3 breathing vocab (how air moves)
Ventilation: physical movement of air (controlled by diaphragm)
Respiration: gas exchange of CO2 and O2 at the alveoli
Oxygenation: loading of oxygen onto hemoglobin in red blood cells
Signs of pulmonary distress:
tripoding, universal choking sign, nasal flaring, head bobbing
Primary assessment, what to do:
A(irway) —> anything to take out or put in?
B(reathing) —>ELPASSCO
C(irculation) —> PEST
Indications, contraindications, sizing, insertion of an OPA:
Indication: patient is unable to maintain their own airway AND is unresponsive
Contraindication: Recent seizure activity OR the patient has an intact gag reflex
Sizing: corner of mouth to angle of jaw
Insertion: cross finger technique, OPA upside down, encounter resistance = flip OPA correctly
Indication, contraindication, sizing, insertion of NPA
Indication: patient is unable to maintain their own airway
Contraindication: major facial/nasal trauma
Sizing: tip of nose to angle of the jaw
Insertion: lube NPA, NPA into RIGHT nostril w/ bevel facing septum
Lung sounds, description, disease
Wheezing - high-pitched whistle - Asthma
Rhonchi - low pitched rumble due to fluid - pneumonia
Rales - crackles from alveoli filled with fluid being popped open - pulmondary edema
Stridor - high pitched sound upon inhalation - FBAO
Where to listen for lung sounds
Midclavicular
Basal
Midaxillary
What is pneumothorax? What are the symptoms of pneumothroax?
it is pressure build-up in the thoracic cavity
JVD, Tracheal Deviation, Accessory Muscle use
what is cyanosis?
bluish discoloration of skin due to lack of O2
what is pallor?
unhealthy pale appearance due to lack of blood flow to an area
secondary assessments
get a full medical history
take vitals:
breaths = 12-20
SPO2 = 95%+
Chronic lung condition/chronic smoker = 90%
Administer interventions = CHECK VITALS AFTER
What are agonal respirations?
When someone is not getting enough oxygen = is gasping for air
This is a brainstem reflex
What are Cheyne Stokes Respiration?
Repeating cycles of rapid breathing followed by periods of apnea
Sign of intracranial pressure
part of the brain that pushes on area of brain that tells you to breathe more and faster
what are kussmaul respirations?
deep labored breathing pattern that indicates body or organs have become too acidic
This is often a response to diabetic ketoacidosis (when the body tries to get rid of large amounts of CO2)
What is Eupnea?
normal breathing
What is Dyspnea?
difficulty breathing
What is apnea?
absence of breathing
what is tachypnea?
rapid breathing
what is bradypnea?
slow breathing
what is orthopnea
Shortness of breath that occurs while lying flat and is relieved by sitting or standing
what is COPD and what are the 3 symptoms?
A group of diseases that cause airflow blockage and breathing related problems
Dyspnea, sputum production, chronic cought
What are the 2 types of COPD? and Describe them
Chronic Bronchitis: Chronic inflmmation of the bronchi + productive cough for 3 months in 2 successsive years
Emphysema: Formation of bleb like structure due to destruction of alveoli + loss of alveolar integrity and elasticity
What are 4 symptoms of chronic bronchitis, and what to do
cyanosis
often overweight
Overproduction of mucus causes productive cough
Mucus coats bronchi/bronchioles causing wheezing
administer O2/albuterol if indicated
What are 5 symptoms of emphysema and what to do?
breathing through pursed lips
often older and thin
difficulty exhaling/air trapping
barrel chested
accessory muscle use
administer O2/albuterol if indicated
What is asthma?
chronic inflammation and narrowing of airway
what happens during asthma, caused by? symptoms? treatment?
airway constrict and fills with mucus
can be caused by allergies, airborne irritants, infections or exercise
wheezing, chest tightness, dyspnea, breathlessness, and coughing
treat with albuterol
symptoms of pneumonia and what populations are at risk?
fever, coughing, chills, chest pain, difficulty breathing, rhonchi
pediatric, geriatric and immunocompromised populations
symptoms of COVID/Flue/RSV
wide range: asymptomatic to dsypnea/chest pain
patients often have flu-like symptoms, fever, loss of taste and smell
what is a pulmonary embolism?
forms when a blood clot blocks off the pulmonary arteries (embolis)
what are the symptoms of pulmonary embolism?
sudden onset pinpoint chest pain**** that may radiate to shoulder/back, shortness of breath, low SpO2
pain may worsen when taing a deep breath
what are the risk factors for blood clots?
DICERS
Diabetes, immobilization, cancer/chemo, estrogen, recent surgery, smoking
what is pulmonary edema?
excess fluid in the alveoli
what is pulmonary edema a result of?
a left sided CHF, wherein fluid backflows into lungs due to left ventricle failure
what are the symptoms of pulmonary edema
rales, orthopnea, dyspnea, shortness of breath, anxiety/restlessness, paroxysmal, nocturnal dyspnea
how to treat a pulmonary edema
sit them upright, O2, ALS
what is flail chest
3 ribs broken, in 2 or more places, on 1 side of the chest
symptoms of flail chest
paradoxical chest movement, palpitation of chest there would be crepitus
treatment of flail chest
BVM acting as an internal splint, call ALS, rapid transport
what is a sucking chest wound
an injury that allows air to enter the pleural cavity, when patient inhales, air gets sucked into the hold in chest, causing further accumulation of air in the pleural cavity
what can a sucking chest wound lead to?
pneumothorax
MOI of sucking chest wound?
gunshots, stabbing
symptoms of a sucking chest would
bubbling at injury site, hissing/sucking, sounds when breathing
how to treat a sucking chest wound
use semi-occlusive dressing and treat for SHOCK (PHART) LOOK FOR EXIT WOUND
what is pneumothorax
air accumulation in pleural space, causing the lung on the afflicted side to collapse
symptoms of pneumothorax
absent lung sounds on affected side, sharp pain that worsens upon inhalation, JVD, tracheal deviation
treatments for pneumothorax
call ALS, rapid transport, BVM
what are the types of pneumothorax
spontaneous pneumothorax, tension pneumothorax, hemopneumothorax
what is spontaneous pneumothorax
occurs suddenly due to rupture of blebs, allowing air from lungs to flow into pleural space
what is tension pneumothorax
when air built up in the pleural space begins to put pressure on the vasculature of the heart
what is hemopneumothorax
when air AND BLOOD enter the pleural space
what are 2 pediatric pulmongenic emergencies
croup and epiglottitis
what is croup
viral infection of upper airway
what are the symptoms of croup and how to treat
barking cough, fever, runny nose
treatment: ALS, humidified O2
what is epiglottitis
bacterial infection of the epiglottis
what are the symptoms of epiglottitis and how to treat
drooling, difficulty swallowing, stridor
ALS, humidified O2
what are panic attacks
sudden episodes of intense fear that causes severe physical reaction
symptoms of panic attacks
feeling of impending doom, headache, hyperventilation, nausea, sweating, tachycardia
what to do when you encounter a panic attack
keep calm, expect longer scene times, do what you can to make them more comfortable
BOX breathing!!! “breathe with me”
What can you do during a pulmonary distress
High concentration O2, ALS, Treatment (albuterol, ipratroprium, epi), DONT DELAY TRANSPORT
Albuterol: Indication, contraindication, route, dose, max dose, mechanism, side effects, considerations
Wheezing with dyspnea, no contraindication, inhaled via nebulizer, 1 ampule(2.5mg/3mL), 3 ampules, bronchodilator,
tachycardia, headache, anxiety
epinephrine for a critical asthma attack with med control approval
Ipratroprium bromide: indication, contraindication, route, dose, max dose, mechanism, side effects, considerations
Wheezing with dyspnea, none, inhaled via nebulizer, 1 ampule (0.5mg/2.5mL), 3 ampules, anticholinergic bronchodilator
dry mouth, blurred vision
Pregnancy
What does CPAP stand for?
Continuous positive airway pressure
What does CPAP do?
increases alveolar recruitment, it keeps the end airway open
increases intrathoracic pressure
CPAP: indications, contraindications, how to use
pulmonary edema with severe dyspnea, acute respiratory distress w/ difficulty oxygenating
AMS/unable to follow commands, SBP <90, respiratory arrest, active vomiting
Set up with a good seal, use 5-10 cm H20, set to 10 Lpm, delivers 901pm to pt
what is pneumonia caused by
infection of the lungs, inflammation of alveoli, causes alveoli to fill up with fluid or pus