Glandular TB and Diagnosis Flashcards

1
Q

What are the other parts of the body that TB can effect?

A

Bones, Lymph nodes and central nervous system. Follow an initial pulmonary infection.

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2
Q

What are the main symptoms of glandular TB?

A

Enlarged lymph glands, in neck or armpits.

Sometimes lymph glands in the chest are affected (seen in X Ray)

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3
Q

How can TB be diagnosed?

A

Skin or blood test.

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4
Q

Skin: What is injected underneath the skin of the forearm?

A

Small amount of tuberculin, composed of several species of mycobacteria.

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5
Q

In a positive result of the skin test, what does it show?

A

An inflamed area of skin at the site of injection

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6
Q

Why is there an inflamed area of skin at the site of the injection?

A

Because antibodies in the blood cause the inflammation indicating that TB antigens are already present.

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7
Q

How can this test give a negative result?

A

If there person has latent TB (E.G TB is not active)

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8
Q

How can the skin test give a false positive?

A

If the person has had a BCG anti-TB vaccination.

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9
Q

What can blood tests do to diagnose?

A

They analyse blood for T cells specific to antigens only occurring on TB bacterium

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10
Q

What happens next after a positive skin test?

A

A sample of sputum coughed up by the patient is taken and cultured to see what bacteria is present.

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11
Q

How is the bacteria in the sputum identified?

A

Using staining techniques, different types of bacteria taken up particular stains, depending on the make-up of their cell wall.

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12
Q

What are Chest X Rays used to do?

A

Check to discover the extent of the damage and disease in the lungs.

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