-
Hypoxemia
A PaO2 less than 60 mm Hg
-
Mucociliary action
Anesthesia slows the mucociliary transport rate
-
Hypoxia
Low oxygen levels at the tissue level
-
Assessment for Hypoxemia
Respiratory rate and rhythm may be normal in hypoxemia
-
What occurs in subacute hypoxemia
Oxygen saturation falls to consistently loer but noncritical level
-
Which interventions may help decrease metabolic demand
Sedation, analgesia and antipyretics
-
Oxygen dissolved in the plasma is defined as
PaO2
-
What occurs in episodic hypoxemia
Oxygen saturation may fall quickly and unexpectedly
-
Imparied oxygen diffusion may cause?
Hypoxemia
-
Inadequate lung ventilation can be caused by?
Neurologic disease
-
Hyperventilation is likely to cause
Increase pH from CO2 depletion
-
After use of incentivie spirometer u note increase in percentage of pulse ox this is related to?
The increased oxygen diffusion from alveoli to capillaries
-
After GI surgery hat breath sounds would lead you to call physician immediately?
Expiratory wheezes througout
-
If acidosis results from a slow, shallow respiratory rate you'd expect the following change in acid/base balance
pH decrease and PaCO2 increase
-
During inspiration air enters the thoracic cavity because of
decrease in intrathoracic pressure relative to pressure at the airway
-
The ability of the lungs to adequately oxygenate the arterial blood is determined by examination of the
Arterial oxygen tension (PaO2)
-
Most important respiratory defense mechanism ddistal to the respiratory bronchioles is the
Alveolar macraphages
-
A rightard shift of the oxygen-hemoglobin dissocation curve
facilitates release of oxygen at the tissue level
-
Signs and Symptoms of inadequate oxygenation include all of the following except
increased peripheral perfusion, increased urine output
-
The left mainstream bronchus is
more angulated than the right
-
Respiration is more affected by
PaCo2
-
Which of the folloing shift the oxyhemoglobin dissociation curve to the left?
Decrease temp, increase in pH
-
During normal quiet relaxed breathing what will the intrapleural pressure be?
Equal to the atmospheric pressure
-
Adventitious breath sounds include all the following except
bronchovesicular sounds
-
Your patients tidal volume is 1000cc's he is breathing 15 times a min what is his minute volume?
15,000cc's
-
Early signs of o2 toxicity include
numbness in the extremities and dry, hacking cough
-
Which of the folloing is a high-flow O2 delivery
Venturi Mask
-
What is the percent of O2 in normal room air (ambient)
21%
-
The bloods O2 carrying capacity can be limited to
Anemia
-
What range of O2 concentration does a nasal cannula provide
Between 24-40 percent
-
Lower than normal O2 saturation in arterial blood is
hypoxemia
-
Oxygen toxicity can occur when a patient receives O2 at?
50 % or greater for more than 24 hours
-
A healthy person's respiratory drive depends on?
PCO2
-
Venturi mask
24-55% 4-10L
-
Non-Rebreather Face Mask
6-15 L/min 60-100%
-
Face Mask
6-10 L/Min 35-60%
-
Which oxygen mask? Mild dyspnea related to anemia
Face Mask
-
Which oxygen mask?
Order for a specific concentration of O2
Nasal Cannula
-
Which mask?
High dose of O2
Non-rebreather mask
-
Which mask? Someone who is very groggy and requires greater than 50% of oxygen concentration
Venturi Mask
-
The bloods O2 carrying capacity can be limited to
Anemia
-
Lower than normal O2 saturation in arterial blood is called
Hypoxemia
-
A health persons respiratory drive depends on?
PCO2
-
Early signs of O2 toxity include:
Numbness in the extremities and dry hacking cough
-
Difference between SpO2 and ABG
pulse ox provides continous monitoring
-
Which is required to acheive a reliable reading from a pulse oximetry?
good arterial blood flow
-
SpO2 values should always be considered in the content of which other value?
Hemoglobin
-
Most common cause of inaccurate SpO2 reading is?
Patient movement
-
What color of nail polish is most likely to affect SpO2 reading?
Black
-
A signal strength indicator and plethysmographic waveform help the nurse to assess?
Reliability of readings
-
Pulse ox sensor should NOT be placed on the
Finger on an arm that has an automatic blood pressure cuff
-
Normal AP to lateral ration of chest
1:2
-
Normal costal angle is no more than
90 degrees
-
What sound would you expect to percuss over healthy lung tissue?
Resonance
-
Early sign of hypoxia?
Change in mental status
-
Breath sound heard of the majority of the posterior lung fields of a health patient
Bronchovesicular
-
What occurs at the Alveoli
Gas exchange
-
How does the shape of your spine influence the ability to inspire deeply?
Skeletal deformities may limit thoracic cage excursion, limits lung expansion within the thorax
-
Purpose of Surfactant?
Reduced the surface tension of the fluid lining the alveoli and prevents alveolar collapse
-
Normal breath sounds
Bronchial, bronchiovesicular, vesicular
-
What sound predominates over lung fields with percussion?
Resonance
-
If pt has a fever how does that affect his oxygenation status?
Pt has more O2 sat and less CO2
-
Surfactant is
a substance secreted by Type II cells that lowers surface tension and prevents alveolar collapse
-
Respiration is more affected by
PaCO2
-
Sputum example is used for diagnosis of
Cancer of the lung, Pneumonia, turberculosis
-
If you were blowing out the candles on a birthday cake which lung volume would you be using?
ERV Expiratory reserve volume
-
Incentivite Spirometer measures
Total lung capacity
-
People who can hold their breath under the water for a long period of time without passing out are using
Inspiratory reserve volume IRV
-
Test gag reflex before giving oral food or fluid after this test
Bronchoscopy
-
Ph level
- 7.35 to 7.45
- Low is Acidosis, High is Alkalosis
-
PaCO2 level
- 35-45
- low is alkalosis, high is acidosis
-
HCO3 level
- 22-26
- Low is acidosis, High is Alkalosis
-
Dextromethorphan (Benylin) works by
Inhibition of the cough center in the Medulla
-
Dextromethorphan has what type of side effects?
Few minor adverse side effects
-
Pseudoephedrine (Sudafed) works by
Mimicking the action of the sympathetic nervous system
-
Pseudeophedrine (Sudafed) is indicated for the treatment of?
Viral Upper Respiratory Infection
-
Which of the following adverse effects may occur during pseudoephedrine (Sudafed) therapy?
Tachycardia
-
How does Afrin(Oxymetazoline) differ from Sudafed?
Route and decrease incidince of adverse effects
-
Which nasal spray is a steroid anti-inflammatory drug?
Dexamethasone sodium phosphate (Turbinaire)
-
Antihistamines such as Fexofenadine (Allegra) are the treatment choice for
Allergic Rhinitis
-
Allegra (Fexofenadine) a second generation anti-histamine differs from first generation anti-histamine suach as diphenhydramine (Benadryl) by
Decreased sedation
-
An expectorant drug such as Guaifenesin (Robitussin) is used to relieve a
Dry hacking cough
-
Cromoly sodium (NasalCrom) works by
Preventing the break down of mast cells
-
Hydrocodone can cause?
Constipation
-
Pts with ___ should avoid Sudafed (Pseudoephedrine) therapy
Severe Hypertension
-
What pt should avoid Allegra
Breast Feeding
-
Pt receiving Benylin should be told not to..
Drive until they see how the drug affects them
-
Tidal Volume
Volume of air inspired or expired in a single breath during regular breathing
-
Inspiratory reserve volume
Maximal volume of air that can be inahled after normal respiration
-
Inspiratory capacity
Volume of gas that can be taken in lungs in a full inhalation starting from resting inspiratory position equal to tidal volume and inspiratory reserve volume
-
Expiratory reserve volume
max amount of gas that can be exhaled from the resting end expiratory level
-
Residual capacity
amount remaining (gas) in the lungs at the end of maximal exhalation
-
Functional residual capacity
volume of air present in the lungs at the end of passive expiration
-
Vital Capacity
Volume of gas that can be expired from lungs from position of full inspiration ith no limit to duration of imspiration equal to inspirate capacity plus expiratory level
-
Oxyhemoglobin dissassociation cruve
Relationship between the partial pressure of O2 and the percent of saturation of O2 (SpO2)
-
If the PaO2 drops from 100-80 mmHg as a result of lung disease or heart disease the hemoglobin of the arterial blood remain almost max saturated 94% and
Tissues do not suffer from hypoxia
-
When arterial blood passes into tissue capillaries and is exposed to the tissue tension of O2 hemoglobin will
give up large quantities of O2 for the use by the tissues
-
Reseting respiration
Phrenic nerve
-
Rhythm of breathing
Respiratory centers in the brain
-
Rate and Depth of Ventilation
Inspiratory and Expiratory centers in Medulla Oblongata and the pons
-
Deep prolonged inspirations
Apneustinc center in lower pons
-
Control pattern of respirations
Pneumatoaxic center in upper pons
-
Anoxia
Absense or abnormally low amount of O2 in the blood can occur during cardiac arrest, anemia, heart failure
-
Atelectasis
Collapsed, airless condition of alveoli
-
Crackles
Sound created with closing and snapping opening of alveoli
-
Emboli
Undissolved matter in blood stream
-
Hypercapnia
Excess Carbon Dioxide in blood
-
Pneumothorax
Air within pleural cavity
-
Oxyhemoglobin
Combined form of hemoglobin and oxygen
-
Rhonchi
Sounds made by fluid in the larger airways most use the term course crackles or wheezes to describe
-
Wheezes
Whistling or sighing sound resulting from narrowing of lumen size of bronchi, high pitched musical sound heard mainly on expiration
-
Hairlike projection of the nasal epithelium are known as
Cilia
-
Which bronchi is straigher
Right
-
What is the space between the lungs called?
Mediastinum
-
Membrane that lines each lung called
Visceral Pleura
-
Membrane that lines the inside of the thoracic cavity called
Parietal Pleura
-
Space between the visceral and parietal is called
Pleural space (fluid)
-
How many lobes of left lung
2
-
How many lobes of the right lung
3
-
Wher does gas exchange occur
Alveoli
-
Primary muscle of inspiration
Diaphragm
-
Three accessory muscles that are used for forced inhalation
- External intercostals
- Sternocleidomastoid
- Abdominal
-
Does the intrathoracic increase or decrease with inspiration?
Decrease
-
Where are the neurogenic mechanisms controlling respirations located?
Medulla and Pons
-
Dead Space
- Ventilation normal absense of perfusion
- Air there blood isn't
-
Shunting
- Ventilation absent perfusion normal
- Blood there air isn't
- Example Pneumonia, Collapsed Alveoli
-
Shift to left
- Increase in pH and Decrease in PaCO2, Holding in CO2, Alkalosis
- Anything lower than 60 bad body can't compensate organs fail
- People that are drowning
-
Shift to right
Decrease in Ph, Increase PaCO2, Acidosis, People that are sick, Fever,
-
Pulmonary Lung Function tests measure
- Ventilation and Perfusion
- Differentiate beteen obstructive and restrictive lung diseases
-
Minute volume is
Volume of air exchanged in one minute
-
-
-
How many days for Kidneys and Lungs
3 days for kidnesy and seconds for lungs
-
BiCarb is produced by the
Kidney
-
Upper Airway Infection also known as
- Common cold
- Incubation period contagious (2-3 days)
-
Mucinex
Expectorant, only works if not dehydrated
-
Non drowsy formula means
blocks mast cells from relasing histamine
-
Opiates as Antitussives when should take?
Am
-
Decongestants ...
- Dry out sinuses, Increase HR, Decrease appetites
- Don't take before bed
-
Antitussive
If interferring with sleep
-
Histamines should be taking when
With meals or right after
-
Antitussive.. take with
Full glass of water, for non productive, dry cough
-
When is it unsafe for an antitussive
Pregnant, alcohol, asthma or emphysema
-
How do antitussives interact with opiates
Cause CNS depression if taken together
-
How much fluid should the patient drink/day when on an expectorant?
up to 10 glasses to loosen secretions
-
Antitussives can cause
Drowsiness, mild dizziness, nausea
-
Define Decongestants
Vasoconstricting agent used to shrink engages nasal mucous membranes in mild URI's
-
Action of decongestants
Shrink engorged nasal mucous membrane in mild URI and relieves Nasal stuffiness
-
Decongestants cause
Increase in BP in HTN pts, Increase dizziness, increase blood glucouse in DM pts, Increase headaches, Increase CNS stimulations or nervousness, Increase Insomnia, Increase restlesness, Increase Irritability
-
Decongestants interact ith
- Anticouagulants
- Increase systemic vascular resistance and decrease renal perfusion
-
Rhinoplasty avoid
Anti coagulants such as aspirin for 2 weeks
-
Trach right after no
Tape change for 24 hours
-
Trach pts do not have
- a sense of smell
- impacts nutrition
-
What do opioids and detromethophan have in common
CNS depressant
-
Trachs are used to bypass upper or lower resp problem
Upper
-
Conditions that predispose pt to OSA
HTN, Over 50, Men, Overweight, Smoking
-
What is a CPAP
- Continous Positive Airway pressure
- keep alveoli open by keeping pressure so air can be passed
-
Surgical procedure that helps OSA
- Uvulopalatopharyngoplasty
- Tracheostomy
-
Trach feel bubbly feeling on skin??
- Misplaced tube or dislodged
- Spontaneous pneumothorax
-
Crepitus
Feeling of popping under skin
-
An air leak ill be noted by bubbling in
H2) seal chamber with expiration and or cough
-
Purpose of Chest Tube
Reestablish negative pressure
-
Collection chamber
Reservoir for fluid coming from pt
-
Water seal
Prevent air from going back in pt
-
Solution
Create neg pressure promote drainage
-
Water seal chamber must have water in it because
it prevents air from going back in the chest
-
-
-
Hypertonic
- Dextrose 10 in H2O
- Dextrose 5% in NaCL 0.9% or D5Normal Saline
- Dextrose 5% or 10% in LR
- D5LR or D10LR
-
D 5 1/2 is
- Isotonic in the bag
- Hypotonic in the body because..
- Sugar goes into RBCs
-
Tension Pneumothroax
Trachea will be pulled to side
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