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How does infection happen?
Respiratory epithelium damaged
• Airborne & suspended for long time
• # pathogens high enough to overpower
• Infection takes over
droplet precautions
influenza
COVID-19
gold standard for flu dx
viral culture but rapid influenza diagnostic test is most common bc take <30min
allery to eggs means that the patient should not recieve which vaccine
flu
serious complications of flu
viral pneumonia or secondary pneumonia
with the flu what is the fiest compensatory mechanism to decreased 02 delivery
tachypnea
NEGATIVE PRESSURE ROOM
COVID
What is the major pathogen associated with HAP
pseudomonas aeruginosa
empyema
collection of purulent material in pleural space
pleurodesis
seals the pleural space to prevent fluid or air from reaccumulating
pneumonia will have what type of pulse
weak tachy
pneumonia pt positioning
Airborne precautions
TB
rust-colored or blood-streaked sputum
TB
have to have TB test read after how many hours
48-72hr
TB s/s
unexplained wt loss, night loss, fever, chills
assess what TB
sputum
Meds used in the tx of TB
asthma patho
intermittent reversible airway obstruction resulting from infalmmation
status asthmaticus
unresponsive to typical to rescue tx
bronchospasm, inflammation, increased mucus or mucus or mucus plugging
s/s chest tihgtnedd, wheezing, dry cough, sob, severe respiratory distress
chronic bronchitis
the presence of cough and sputum production for at least 3 months in each of 2 consecutive years
COPD complications
secondary spontaneous pneumothorax
Right heart failure
Cor pulmonale
COPD changes in skin color
reddish
cystic fibrosis is caused by what genes
defective gene carried by both parents
cystic fibrosis surgical interventions
lung transplant
pancreas transplant
what kind of inhaled med should SF pt take and what kind of vitamins
upper respiratory tract
nose and larynx
lower respiratory
trachea and alveoli
delivering too much oxygen to a COPD pt may do what
interfere with hypoxic drive for breathing leading to decreased respiratory effort and ultimately rate
how to tell if 02 sat is accurate
waveforam and take manula pulse and if it is the same as the pulse ox then the 02 is probablly accurate
what kind of oxygen does a trach patient need?
humidified
what face mask is used for facial trauma
face tent
what is the advantages of using a high flow nasal cannula
A high-flow nasal cannula uses an air-oxygen blender (blends 02 with compressed air), active humidifier and a single hated tube and it delivers medical gas up to 60L/min. advantages are reduced anatomical dead space, PEEP, constant FI02, and humidification.
what does CPAP do
keep the alveoli open during
what does BIPAP do
provides a higher pressure during during inhalation
oxygen toxicity
damage alveoli cap membranes and inactivates surfactent
absorption atelectasis
high levels of 02 given which washes out nitrogen in alveoli which causes alveoli collapse
at what rate may a patient esxperiense dry mucous membranes due to oxygen
4L/min ( masks can also be a source of bacteria)
collapse of the alveoli makes it difficult to reiflate the alveolibecause they can become filled with fluid or blood if there is damage to the alveoli. which can lead to what complications
pulmonary edema, atelectasis, hemorrhage which can progress to ARDS
what is the role of the nurse regarding ETT managment?
maintaining a patent airway, monitoring the pt for complications, maintaining proper cuff inflation, providing oral care and suctioning as need, maintaining correct tube placement, monitoring oxygenation and vital signs, and education the patient and family.
when is artificial airways such as a trach indicated
when a patient needs ventilation for 7-14 days to prevent laryngeal and upper airway damage r/t porlinged ett use. bc it providesa a stable airway for pt who need it long term, to allow access to the lower airway for suctioning
trach complications
accidental decannulation, pneumothorax, subq emphysema, infection, tracheal stenosis, tracheoesophageal fistula
why is decannulation in the first 72 hours considered an emergency
because the trach isnt mature and during reinsertion there is a large risk for tisssue damage and unsuccessful ventilation
how can a pneumothorax happen with a trach
during trach porcedure if lung is pierced during procedure
how does subq emphysema happen with trach
puncture near the trachea allows air around the surrounding tissue and can move into neck face chest etc
tracheal stenosis
narrowing of the trachea due to scar tissue that forms from irritation of the mucosal lining of the trachea from cuff
tracheoesophageal fistula
can result from overinflating the cuff. the extra pressure causes a hole or fistula to occur between trache and esophagus
chest physiotherapy
Consists of percussion, vibration, and postural drainage. After CPT, the patient is encouraged to breathe deeply and cough to clear the airway.
goal for a pt on mechanical ventilation
support the patient until the underlying pathophysiological process is corrected
fraction of inspired oxygen
amount of 02 the patient recieves per minute
tidal volume
amount of preset air that is delivered with each breath measured in mL
Provides a combination of ventilator-assisted breaths and spontaneous breaths
intermittent mandatory ventilation
Used for patients being weaned from the ventilator. If the patient does not initiate a breath, the ventilator delivers a preset volume and rate per minute.
synchronized intermittent mandetor ventilation
Designed for spontaneously breathing patients who need high pressure to recruit alveoli
airway pressure release ventilation
Gives a set positive pressure during spontaneous respirations
pressure-support ventilation
complications of mechanical ventilation
Hypotension – Increased intrathoracic pressure decreases venous return to the right side of the heart and ultimately decreases cardiac output
Ventilator-associated pneumonia – A serious healthcare-associated infection resulting in high morbidity, high mortality, and high costs of treatment. Aspiration of oropharyngeal and/or gastric fluids is presumed to be an essential step in the development of VAP, and it typically develops 48 hours or more after endotracheal intubation.
Infection – The normal defenses of the upper and lower respiratory systems are bypassed.
Barotrauma – A complication of the mechanical ventilator due to the increased positive pressure applied to the lungs, which can cause alveolar rupture. Overdistention of the alveoli can lead to an excessive amount of air entering into the pleural space, causing a tension pneumothorax.
HOB at waht degree for mech ventilation
30-45 degree
weaning criteria
ability to breath spontaneously
ability to support adequate oxygenations
ability to maintain hemodynamic stability
weaning methods
CPAP
T-piece
pressure support
weaning complications
re-intubation
aspiration
stridor
what should be determined before weaning the pt from the vent
the pt should demonstrate evidence that the underlying cause of resp failure has been reversed
epiglottis
is a leaf-shaped flap that covers the opening of the larynx and provides a tight seal over the larynx when an individual is swallowing food or liquids to prevent aspiration
bronchoscopy NPO
NPO for 8 hours prior to procedure
rigid vs flexible bronchoscopies
Flexible bronchoscopies are used to take tissue specimens or replace an endotracheal tube.
Rigid bronchoscopy is used to remove obstructions or large amounts of secretions from the respiratory tract.
thoracentesis
Description and Rationale — A thoracentesis can be used as a diagnostic test or treatment depending on the disease process. During a thoracentesis, a needle is inserted into the pleural space to remove a specimen or excess fluid/air.
Significance of Abnormal Values, pg 473
**Fluid can be analyzed to determine if microorganisms or abnormal cells are present. If air is aspirated from the pleural space, this is consistent with a pneumothorax diagnosis. Thoracentesis can be used as a treatment option to remove fluid and/or air from the pleural space.
Signs and symptoms of complications. Patients should be told to immediately report any of the following symptoms to their provider:
• Elevated heart rate/heart palpitations
• Dyspnea/shortness of breath (SOB)
• Chest pain
• Hemoptysis (bloody secretions)
watch for what in pt with heart diseas
Watch for pseudoephedrine in patients with heart disease and HBP