Respiratory System Vocab Flashcards

(155 cards)

1
Q

What are adenoids?

A

Lymphatic tissue in the nasopharynx.

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2
Q

What is an alveolus?

A

Air sac in the lung.

Plural: alveoli

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3
Q

What is the apex of the lung?

A

Tip or uppermost portion of the lung. Apical means pertaining to or located at the apex.

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4
Q

What is the base of the lung?

A

Lower portion of the lung; from the Greek basis, foundation. Basilar means located at or in the base.

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5
Q

What are bronchioles?

A

Smallest branches of the bronchi. Terminal bronchioles lead to alveolar ducts.

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6
Q

What is a bronchus?

A

Branch of the trachea (windpipe) that is a passageway into the lung.

Plural: bronchi

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7
Q

What is carbon dioxide?

A

Gas produced by body cells when oxygen and carbon atoms from food combine; exhaled through the lungs.

Abbreviation: CO2

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8
Q

What are cilia?

A

Thin hairs attached to the mucous membrane epithelium lining the respiratory tract. They clear bacteria and foreign substances from the lung.

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9
Q

What is the diaphragm?

A

Muscle separating the chest and abdomen. It contracts to pull air into the lungs and relaxes to push air out.

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10
Q

What is the epiglottis?

A

Lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing.

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11
Q

What is exhalation?

A

Breathing out; expiration.

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12
Q

What is the glottis?

A

Slit-like opening to the larynx.

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13
Q

What is the hilum of the lung?

A

Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs. Hilar means pertaining to (at) the hilum

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14
Q

What is inhalation?

A

Breathing in; inspiration.

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15
Q

What is the larynx?

A

Voice box; containing the vocal cords.

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16
Q

What is a lobe?

A

Division of a lung.

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17
Q

What is the mediastinum?

A

Region between the lungs in the chest cavity. It contains the trachea, heart, lymph nodes, major blood vessels, esophagus, and bronchial tubes.

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18
Q

What are nares?

A

Openings through the nose carrying air into the nasal cavities; nostrils.

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19
Q

What is oxygen?

A

Gas that makes up 21 percent of the air that we breathe. It passes into the bloodstream at the lungs and travels to all body cells.

Abbreviation: O2

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20
Q

What is the palatine tonsil?

A

One of a pair of almond-shaped masses of lymphatic tissue in the oropharynx.

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21
Q

What is a paranasal sinus?

A

One of the air cavities in the bones near the nose.

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22
Q

What is the parietal pleura?

A

Outer layer of pleura lying closer to the ribs and chest wall.

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23
Q

What is the pharynx?

A

Throat; including the nasopharynx, oropharynx, and laryngopharynx.

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24
Q

What is the pleura?

A

Double-layered membrane surrounding each lung.

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25
What is the pleural cavity?
Space between the layers of the pleura.
26
What is pulmonary parenchyma?
Essential parts of the lung, responsible for respiration; bronchioles and alveoli.
27
What is respiration?
Exchange of gases (oxygen and carbon dioxide) at the lung capillaries (external respiration or breathing) and within individual cells (internal respiration).
28
What is the trachea?
Windpipe.
29
What is the visceral pleura?
Inner layer of pleura lying closer to the lung tissue.
30
What is auscultation?
Listening to sounds within the body, chiefly for air passage in the lungs and heart sounds. It helps diagnose conditions of the lungs, pleura, heart, abdomen, and fetal condition during pregnancy.
31
What is percussion?
Tapping on a surface to determine the difference in the density of the underlying structure.
32
What is pleural rub?
Scratchy sound produced by pleural surfaces rubbing against each other, often due to inflammation, infection, scarring, or neoplastic cells.
33
What are rales (crackles)?
Fine crackling sounds heard on auscultation during inhalation when there is fluid in the alveoli. ## Footnote These sounds can be heard in patients with pneumonia, bronchiectasis, or acute bronchitis.
34
What are rhonchi?
Loud rumbling sounds heard on auscultation of bronchi obstructed by sputum, resembling snoring.
35
What is sputum?
Material expelled from the bronchi, lungs, or upper respiratory tract by spitting. ## Footnote Purulent sputum may be green or brown and can indicate infection.
36
What is stridor?
Strained, high-pitched sound heard on inspiration caused by obstruction in the pharynx or larynx.
37
What are wheezes?
Continuous high-pitched whistling sounds produced during breathing, often heard when air is forced through narrowed or obstructed airways.
38
What is croup?
Acute viral infection of infants and children with obstruction of the larynx, accompanied by barking cough and stridor. The most common causative agents are influenza viruses or respiratory syncytial virus (RSV).
39
What is diphtheria?
Acute infection of the throat and upper respiratory tract caused by the diphtheria bacterium (Corynebacterium). Inflammation occurs, and a leathery, opaque membrane forms in the pharynx and trachea. ## Footnote Immunity to diphtheria is induced by the administration of weakened toxins (antigens) beginning between the sixth and eighth weeks of life, usually given as DPT injections.
40
What is epistaxis?
Nosebleed. It commonly results from irritation of nasal mucous membranes, trauma, vitamin K deficiency, clotting abnormalities, blood-thinning medications (such as aspirin and warfarin), or hypertension.
41
What is pertussis?
Whooping cough; highly contagious bacterial infection of the pharynx, larynx, and trachea caused by Bordetella pertussis. Pertussis is characterized by paroxysmal spasms of coughing that end in a loud 'whooping' inspiration.
42
What is asthma?
Asthma is a chronic inflammatory disorder with airway obstruction due to bronchitis and bronchiolar edema and constriction. ## Footnote Associated signs and symptoms include dyspnea, wheezing, increased mucous production, and cough.
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What are the triggers for asthmatic attacks?
Triggers for asthmatic attacks include exercise, strong odors, cold air, stress, allergens (e.g., tobacco smoke, pet dander, dust, molds, pollens, foods), and medications (aspirin, beta blockers).
44
What are the treatments for asthma?
Asthma treatments include fast-acting agents for acute symptoms (e.g., albuterol inhaler) and long-acting agents for long-term control (e.g., glucocorticoids, oral steroids, leukotriene blockers like montelukast). ## Footnote Fast-acting agents are bronchodilators, while long-acting agents are anti-inflammatory.
45
What conditions can exacerbate asthma?
Conditions such as gastroesophageal reflux disease (GERD), sinusitis, and allergic rhinitis can exacerbate asthma.
46
What is bronchiectasis?
Bronchiectasis is a chronic dilation of a bronchus, usually secondary to infection, caused by chronic infection with loss of elasticity of the bronchi. ## Footnote Secretions puddle and do not drain normally.
47
What are the signs and symptoms of bronchiectasis?
Signs and symptoms of bronchiectasis include cough, fever, and expectoration of foul-smelling, purulent sputum.
48
What is the treatment for bronchiectasis?
Treatment for bronchiectasis is palliative and includes antibiotics, mucolytics, bronchodilators, respiratory therapy, and surgical resection if other therapies are not effective.
49
What is chronic bronchitis?
Chronic bronchitis is inflammation of bronchi persisting over a long time; it is a type of chronic obstructive pulmonary disease (COPD). ## Footnote Etiologic factors include infection and cigarette smoking. Signs and symptoms include excessive secretion of often infected mucus, a productive cough, and obstruction of respiratory passages.
50
What are the types of chronic obstructive pulmonary disease (COPD)?
Chronic bronchitis and emphysema are types of chronic obstructive pulmonary disease (COPD).
51
What is cystic fibrosis (CF)?
Cystic fibrosis (CF) is an inherited disorder of exocrine glands resulting in thick mucinous secretions in the respiratory tract that do not drain normally. ## Footnote This genetic disorder is caused by a mutation in a gene.
52
How is cystic fibrosis diagnosed?
Cystic fibrosis can be diagnosed by newborn screening blood test, sweat test, and genetic testing.
53
What are the effects of cystic fibrosis on the body?
CF affects the epithelium of the respiratory tract, leading to chronic airway obstruction, infection, bronchiectasis, and sometimes respiratory failure. It also involves exocrine glands, such as the pancreas and sweat glands. ## Footnote Insufficient secretion of digestive enzymes from the pancreas leads to poor growth, and salty-tasting skin is a symptom related to sweat glands.
54
What is the treatment for cystic fibrosis?
There is no known cure for cystic fibrosis, but therapy includes antibiotics, aerosolized medications, chest physiotherapy, and replacement of pancreatic enzymes. ## Footnote A new medication called ivacaftor (Kalydeco) helps prevent the buildup of thick mucus in the lungs.
55
When might lung transplantation be necessary for cystic fibrosis patients?
Lung transplantation becomes necessary for some cystic fibrosis patients, as it can restore lung function and prolong life.
56
What is atelectasis?
Collapsed lung; incomplete expansion of alveoli. ## Footnote In atelectasis, the bronchioles and alveoli (pulmonary parenchyma) resemble a collapsed balloon.
57
What is emphysema?
Hyperinflation of air sacs with destruction of alveolar walls. ## Footnote There is a strong association between cigarette smoking and emphysema.
58
What are the consequences of emphysema?
Loss of elasticity and breakdown of alveolar walls result in expiratory flow limitation. ## Footnote This leads to right ventricular hypertrophy and right heart failure (cor pulmonale).
59
What is the relationship between emphysema and COPD?
Emphysema and chronic bronchitis are both forms of COPD.
60
What is lung cancer?
malignant tumor arising from the lungs and bronchi This group of cancers is often associated with cigarette smoking and is the most frequent fatal malignancy.
61
What are the two general categories of lung cancer?
Non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC).
62
What is pneumoconiosis?
Abnormal lung condition caused by exposure to certain dusts; with chronic inflammation, infection, and bronchitis.
63
What is anthracosis?
A form of pneumoconiosis caused by coal (anthrac/o) dust.
64
What is asbestosis?
A form of pneumoconiosis caused by asbestos (asbest/o) particles, often found in shipbuilding and construction trades.
65
What is silicosis?
A form of pneumoconiosis caused by silica (silic/o) or glass, also known as grinder's disease.
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What is pneumonia?
Acute inflammation and infection of alveoli, which fill with pus or products of the inflammatory reaction. Etiologic agents are pneumococci, staphylococci, and other bacteria, fungi, or viruses.
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What happens to alveolar membranes during pneumonia?
Infection damages alveolar membranes so that an exudate consolidates the alveoli, making air exchange less effective.
69
What is an infiltrate in the context of pneumonia?
An infiltrate is a fluid-filled area within the lungs as seen on a chest x-ray or CT scan.
70
What is lobar pneumonia?
Lobar pneumonia involves an entire lobe of a lung.
71
What is bronchopneumonia?
Bronchopneumonia is a limited form of infection that produces patchy consolidation (abscesses) in the lung parenchyma.
72
What is the treatment for pneumonia?
Treatment includes appropriate antibiotics and, if necessary, oxygen and mechanical ventilation in severe cases.
73
What is community-acquired pneumonia?
Community-acquired pneumonia results from a contagious respiratory infection, caused by a variety of viruses and bacteria, and is usually treated at home with oral antibiotics.
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What is hospital-acquired pneumonia?
Hospital-acquired pneumonia is acquired during hospitalization, often while on mechanical ventilation or as a hospital-acquired infection.
75
What is aspiration pneumonia?
Aspiration pneumonia is caused by material, such as food or vomitus, lodging in bronchi or lungs.
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Who is at risk for aspiration pneumonia?
It is a danger in the elderly, Alzheimer disease patients, stroke victims, and people with esophageal reflux and feeding tubes.
77
What is pulmonary edema?
Fluid in the air sacs and bronchioles, most often caused by the inability of the heart to pump blood effectively.
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What causes blood to back up in pulmonary edema?
Blood backs up in the pulmonary blood vessels and fluid seeps out into the alveoli and bronchioles.
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What is the immediate treatment for acute pulmonary edema?
Immediate medical attention includes drugs (diuretics), oxygen in high concentrations, and keeping the patient in a sitting position to decrease venous return to the heart.
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What is pulmonary embolism (PE)?
Clot or other material lodges in vessels of the lung. The clot (embolus) travels from distant veins, usually in the legs. Occlusion can produce an area of dead (necrotic) tissue; this is a pulmonary infarction. PE often causes acute pleuritic chest pain and may be associated with blood in the sputum, fever, and respiratory insufficiency. ## Footnote CT angiography is the primary diagnostic tool for pulmonary emboli.
82
What is pulmonary fibrosis?
Formation of scar tissue in the connective tissue of the lungs. This condition can be primary (idiopathic) or secondary as the result of chronic inflammation or irritation caused by tuberculosis, pneumonia, or pneumoconiosis.
83
What is sarcoidosis?
Chronic inflammatory disease in which small nodules (granulomas) develop in lungs, lymph nodes, and other organs. The cause of sarcoidosis is unknown. Bilateral hilar lymphadenopathy or lung involvement is visible on chest x-ray in most cases. Many patients are asymptomatic and retain adequate pulmonary function. Sarcoidosis may affect the brain, heart, liver, and other organs. Other patients have more active disease and impair pulmonary function. Glucocorticoids are used to prevent progression of the illness.
84
What is tuberculosis (TB)?
Infectious disease caused by Mycobacterium tuberculosis; lungs usually are involved, but any organ in the body may be affected. Rod-shaped bacteria called bacilli invade the lungs, producing small tubercles of infection. Early TB usually is asymptomatic and detected on routine chest x-ray studies. Signs and symptoms of advanced disease are cough, weight loss, night sweats, hemoptysis, and pleuritic pain. Antituberculosis chemotherapy (isoniazid, rifampin) is effective in most cases. ## Footnote Immunocompromised patients are particularly susceptible to antibiotic-resistant TB. It is important and often necessary to treat TB with several drugs at the same time to prevent drug resistance.
85
What is the PPD skin test?
The PPD skin test is given to most hospital and medical employees because TB is highly contagious. A positive PPD test indicates exposure to TB, and treatment with isoniazid will be necessary even in the absence of lung infection.
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Mesothelioma
Rare malignant tumor arising in the pleura
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What is pleural effusion?
Abnormal accumulation of fluid in the pleural space (cavity).
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What are the two types of pleural effusions?
Exudates (fluid from tumors and infections) and transudates (fluid from congestive heart failure or cirrhosis).
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What is pleurisy?
Inflammation of the pleura.
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What symptoms does pleurisy cause?
Pleurodynia and dyspnea, and in chronic cases, pleural effusion.
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What is pneumothorax?
Collection of air in the pleural space.
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When may pneumothorax occur?
It may occur in the course of a pulmonary disease (emphysema, carcinoma, tuberculosis, or lung abscess) when a break in the lung surface releases air into the pleural space.
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What can cause pneumothorax aside from pulmonary disease?
Trauma and perforation of the chest wall or prolonged high-flow oxygen delivered by a respirator in an intensive care unit (ICU).
95
What is pleurodesis?
The artificial production of adhesions between the parietal and visceral pleura for treatment of persistent pneumothorax and severe pleural effusion.
96
How is pleurodesis accomplished?
By using talc powder or drugs, such as antibiotics, that cause irritation and scarring of the pleura.
97
What is anthracosis?
Coal dust accumulates in the lungs.
98
What is asbestosis?
Asbestos particles accumulate in the lungs.
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What are bacilli?
Rod-shaped bacteria. ## Footnote Singular: bacillus
100
What is chronic obstructive pulmonary disease (COPD)?
Chronic condition of persistent obstruction of airflow through bronchial tubes and lungs. ## Footnote COPD is caused by smoking, air pollution, chronic infection, and, in a minority of cases, asthma.
101
What is cor pulmonale?
Failure of the right side of the heart to pump a sufficient amount of blood to the lungs because of underlying lung disease.
102
What are exudates?
Fluid, cells, and other substances (pus) that filter from cells or capillaries ooze into lesions or areas of inflammation.
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What is an infiltrate?
Collection of fluid or other material within the lung, as seen on a chest film, CT scan, or other radiologic image.
104
What does palliative mean?
Relieving symptoms, but not curing the disease.
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What does paroxysmal mean?
Pertaining to a sudden occurrence, such as a spasm or seizure.
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What is pulmonary infarction?
Area of necrosis (death of lung tissue).
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What does purulent mean?
Containing pus.
108
What is silicosis?
Disease due to silica or glass dust in the lungs; occurs in mining occupations.
109
What is a chest x-ray (CXR)?
A radiographic image of the thoracic cavity (chest film).
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How are chest x-rays taken?
Chest x-rays are taken in the frontal (coronal) plane as posteroanterior (PA) or anteroposterior (AP) views and in the sagittal plane as lateral views.
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What is computed tomography (CT)?
A computer-generated series of x-ray images showing thoracic structures in cross section and other planes.
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What is the purpose of a CT scan of the chest?
It is for the diagnosis of lesions difficult to assess by conventional radiographic studies, such as those in the lungs, mediastinum, and pleura.
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What is CT pulmonary angiography (CTPA)?
The combination of CT scanning and angiography.
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When is CTPA useful?
It is useful to examine the pulmonary circulation in the diagnosis of a pulmonary embolism.
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What does MRI stand for?
Magnetic Resonance Imaging
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What area of the body does chest MRI focus on?
The chest
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What do magnetic waves create in chest MRI?
Detailed images of the chest in frontal, lateral (sagittal), and cross-sectional (axial) planes.
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What is a key use of chest MRI?
It is helpful in defining mediastinal tumors.
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Which type of tumors can be assessed using chest MRI?
Mediastinal tumors, such as those of Hodgkin lymphoma.
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Why is chest MRI preferred over CT scan for certain assessments?
Because it can assess mediastinal tumors that are difficult to evaluate by CT scan.
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What is a positron emission tomography (PET) scan?
A PET scan involves injecting radioactive glucose to reveal metabolic activity in the lungs. ## Footnote It can identify malignant tumors with higher metabolic activity and assess small nodules seen on a CT scan.
124
What is a ventilation-perfusion (V/Q) scan?
A V/Q scan detects radioactivity in the lung after intravenous injection of a radioisotope and inhalation of a small amount of radioactive gas (xenon). ## Footnote It identifies areas of the lung not receiving adequate airflow or blood flow and can suggest a pulmonary embolus if airflow is present without matched blood flow.
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What is bronchoscopy?
Fiberoptic endoscope examination of the bronchial tubes.
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How is a bronchoscope used?
A physician places the bronchoscope through the throat, larynx, and trachea into the bronchi for diagnosis, biopsy, or collection of secretions.
128
What is bronchoalveolar lavage?
In bronchoalveolar lavage (bronchial washing), fluid is injected and withdrawn.
129
What is bronchial brushing?
In bronchial brushing, a brush is inserted through the bronchoscope and is used to scrape off tissue.
130
What is endobronchial ultrasound (EBUS)?
Endobronchial ultrasound (EBUS) is performed during bronchoscopy to diagnose and stage lung cancer.
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What is an EBUS-guided biopsy?
An EBUS-guided biopsy allows for sampling of small (<3 cm) peripheral lesions endoscopically.
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What is endotracheal intubation?
Placement of a tube through the mouth into the pharynx, larynx, and trachea to establish an airway. This procedure also allows the patient to be placed on a mechanical ventilator.
134
What is laryngoscopy?
Visual examination of the voice box using a lighted, flexible endoscope passed through the mouth or nose into the larynx.
135
What is a lung biopsy?
Removal of lung tissue followed by microscopic examination. Specimens may be obtained by bronchoscopy, thoracotomy, needle biopsy through the chest wall, or video-assisted thoracoscopic surgery (VATS).
136
What is mediastinoscopy?
Endoscopic visual examination of the mediastinum. An incision is made above the breastbone for inspection and biopsy of lymph nodes in the underlying space.
137
What are pulmonary function tests (PFTs)?
Tests that measure the ventilation mechanics of the lungs: airway function, lung volume, and the capacity of the lungs to exchange oxygen and carbon dioxide efficiently.
138
What are the uses of pulmonary function tests (PFTs)?
PFTs are used to evaluate patients with shortness of breath, monitor lung function in patients with known respiratory disease, evaluate disability, and assess lung function before surgery.
139
What does a spirometer measure?
A spirometer measures the volume and rate of air passing into and out of the lung.
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What do PFTs determine about lung disease?
PFTs determine whether lung disease is obstructive, restrictive, or both.
141
What characterizes obstructive lung disease?
In obstructive lung disease, airways are narrowed, resulting in resistance to airflow during breathing. A hallmark PFT abnormality is decreased expiratory flow rate or FEV1.
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What are examples of obstructive lung diseases?
Examples include asthma, COPD, bronchiectasis, cystic fibrosis, and bronchiolitis.
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What is restrictive lung disease?
Restrictive lung disease is characterized by limited lung expansion due to conditions affecting the chest wall, pleura, or lung tissue itself. ## Footnote A hallmark PFT abnormality is decreased total lung capacity (TLC).
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What are examples of conditions that cause restrictive lung disease?
Examples include pulmonary fibrosis, radiation damage to the lung, and pneumoconiosis. ## Footnote Other causes include neuromuscular conditions like myasthenia gravis and muscular dystrophy.
146
How is the diffusion capacity of the lung assessed?
It is assessed by determining the diffusion capacity of the lung for carbon monoxide (DLCO). ## Footnote A patient breathes in a small amount of carbon monoxide, and the time taken for the gas to enter the bloodstream is measured.
147
What is a common cause of reduced DLCO?
A common cause of reduced DLCO is emphysema due to destruction of alveoli.
148
What is thoracentesis?
Thoracentesis is a minimally invasive procedure where a needle is inserted into the pleural space to remove excess fluid. ## Footnote It is used to obtain pleural fluid for diagnosis or to drain a pleural effusion.
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What is thoracotomy?
Large surgical incision of the chest. ## Footnote The incision is large, cutting into bone, muscle, and cartilage. It is necessary for major resections of the lung (lobectomy and pneumonectomy).
151
What is thoracoscopy?
Visual examination of the chest via small incisions and use of an endoscope. ## Footnote Video-assisted thoracic surgery (VATS) allows the surgeon to view the chest from a video monitor. The thoracoscope is equipped with a camera that magnifies the image on the monitor. Thoracoscopy can diagnose and treat conditions of the lung, pleura, and mediastinum.
152
What is tracheostomy?
Surgical creation of an opening into the trachea through the neck. ## Footnote A tube is inserted to create an airway. The tracheostomy tube may be permanent as well as an emergency device. A tracheotomy is the incision necessary to create a tracheostomy.
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What is the tuberculin test?
Determines past or present tuberculous exposure based on a positive skin reaction. ## Footnote Examples are the Heaf test and the tine test, using purified protein derivative (PPD) applied with multiple punctures of the skin, and the Mantoux test, using PPD given by intradermal injection.
155
What is tube thoracostomy?
Flexible, plastic chest tube is passed into the pleural space through an opening in the chest. ## Footnote This procedure is used to continuously remove air (pneumothorax), fluid (pleural effusion), blood (hemothorax), pus (empyema).