Pathologies Flashcards

1
Q

What is a pneumothorax?

A

Where air leaks into the pleural cavity, which is the space between the lung and chest wall. This air pushes on the outside of the lung and makes it collapse. Pneumothorax can be complete lung collapse or a portion of the lung.

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2
Q

What is a tension pneumothorax?

A

If air continues to enter the pleural cavity as someone breathes, this can start to compress the other lung and heart leading to a tension pneumothorax and can be life threatening.

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3
Q

What is a primary spontaneous pneumothorax?

A

develops in a healthy young person for no reason and occurs due to a small tear in the lung, probably due to a weakness when developing.

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4
Q

What is a secondary pneumothorax?

A

develops in someone which an existing lung condition, usually COPD, were the condition weakens the lungs and it is more likely to tear. It can also occur because of lung cancer, cystic fibrosis, TB and idiopathic pulmonary fibrosis

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5
Q

What are the symptoms of a pneumothorax?

A

Feeling breathless and a sudden sharp stabbing pain on one side of the chest that gets worse when you breathe in.

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6
Q

What is the treatment of a pneumothorax?

A

If its small it can heal itself.

For a larger pneumothorax, it may be aspirated which involves inserting a needle into the air filled space and sucking the air out through a thin tube using a syringe.

Or, a chest drain may be used which is inserted through the chest wall and allows air out but not back in, so the lung can re-inflate. It is usually in place for 2-5 days.

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7
Q

What is an atelectasis?

A

Where the airways and air sacs in the lungs collapse or do not expand properly. It can occur when there is an airway blockage, when pressure outside the lung keeps it from expanding or when there is not enough surfactant for the lung to expand normally.

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8
Q

Who is at higher risk of an atelectasis?

A

Patients may be at higher risk of an atelectasis if they are obese, have asthma, COPD, cystic fibrosis or if they have recently had surgery as anaesthetic can affect the way the lungs work.

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9
Q

What can cause an atelectasis?

A

can occur in newborns whose lungs are not fully developed and have respiratory distress syndrome. Can occur when a tumor, excess mucus or food blocks the airway or due to a pneumothorax or pleural effusion.

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10
Q

What are the symptoms of an atelectasis?

A

It may not cause any signs or symptoms if it affects a small area of your lungs. If it affects a larger area then symptoms can include shallow breathing, wheezing, coughing and fever.

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11
Q

What is the treatment of an atelectasis?

A

Chest physiotherapy= postural drainage, percussion, spirometry and ACBT.
Surgery= removal of airway obstructions may be done by suctioning mucus or by bronchoscopy, where a tube is placed down the throat to clear the airways.
Continuous positive airway pressure (CPAP) may be helpful in some people who are too weak to cough and who have hypoxemia after surgery.

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12
Q

What is pleural effusion?

A

Is a build up of fluid between the two layers of pleura.

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13
Q

When is a plural effusion most likely to occur?

A

Pleural effusions are common and are often due to lung infections, such as pneumonia and heart failure. A pleural effusion can also be a symptom of several types of cancer as cancer cells can spread into the pleura, which can lead to irritation and cause fluid to build up.

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14
Q

What are the symptoms of a plural effusion?

A

Breathlessness, cough, chest pain.

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15
Q

How are pleural effusions usually treated?

A

chest drain

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16
Q

What is pulmonary oedema?

A

Fluid in the lungs. The fluid collects in the tissues and the air sacs

17
Q

What are the two types of pulmonary oedema?

A

acute and chronic

18
Q

What is cardiogenic pulmonary oedema?

A

Pulmonary oedema is usally caused by cardiogenic PO.

The left ventricle is not able to pump out blood that enters from blood vessels coming from the lungs, causing a build up of pressure and fluid. It can also be caused by acute respiratory distress syndrome, blood clots, trauma, near-drowning incidents, viral infections or even being at high altitudes.

19
Q

What are the symptoms of acute PE?

A

sudden shortness of breath, sweating, wheezing/gasping, pink frothy sputum, blue/grey skin, feeling lightheaded.

20
Q

What are the symptoms of chronic PE?

A

gain weight rapidly(fluid build up and congestive heart failure), more trouble breathing during physical activity, swollen legs and feet, trouble breathing lying down, wheeze.

21
Q

What is the treatment of cardiogenic PE?

A

diuretics (water pills) and other medication for heart failure.

22
Q

What is the treatment of non-cardiogenic PE?

A

medication, oxygen, positioning

23
Q

What is bronchiectasis?

A

A long term condition where the airways of the lungs become abnormally widened, leading to a build up of excess mucus that can make the lungs more vulnerable to infection. It can develop if the tissue and muscles that surround the bronchi are damage or destroyed

24
Q

What are the most common causes of bronchiectasis?

A

The most common causes include, a past lung infection that damages the bronchi, underlying problems with the immune system and allergic bronchopulmonary aspergillosis(ABPA) which is an allergy to a certain type of fungi which cause bronchi to become inflamed.

25
Q

What are the symptoms of bronchiectasis?

A

Breathlessness, persistent cough that usually brings up sputum, wheezing, finger clubbing, joint pain.

26
Q

What is the treatment for bronchiectasis?

A

ACBT, percussion, suction, medication to improve airflow in lungs, antibiotics to treat infection. Surgery is rarely considered.

27
Q

What is pulmonary fibrosis?

A

Build up of scar tissue in the lungs that can be idiopathic.

28
Q

What can be the causes of pulmonary fibrosis?

A

In most causes there is no exact cause, but in some cases it can be caused by asbestos, exposed to allergens in the air or a side effect of a drug.

29
Q

What are the symptoms of pulmonary fibrosis?

A

Breathlessness, a persistent cough, fatigue, finger clubbing.

30
Q

What is the treatment of pulmonary fibrosis?

A

Once scarring occurs, it cannot be reversed. Drugs can be used to slow down the rate of scarring, steroids can be used to supress inflammation in the lungs, avoid allergens and stopping any drugs causing the problem. If it progresses a lung transplant may be needed if it cannot be stabilised by other treatment

31
Q

What is hypoxia?

A

the supply of oxygen is insufficient at tissue level.

32
Q

What is hypoxaemia?

A

there is insufficient oxygen in arterial blood.

33
Q

What are the symptoms of hypoxia and hypoxaemia?

A

Shortness of breath, clubbing, rapid breathing and a fast heart rate. Can include confusion, coma, inability to communicate.

34
Q

What is the treatment for hypoxia and hypoaemia?

A

Give oxygen- this can be given by a nasal cannula. Some patients may be treated in a hyperbaric chamber to increase oxygen concentrations in blood or even intubation(ventilation).