Immune Deficiencies - Unit 4 Flashcards

1
Q

What are the two types of immune deficiencies?

A

Congenital (born with it) and Acquired (drug, radiation, invader, etc.)

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2
Q

Immune Deficiencies - are they on a spectrum?

A

Yes, some are worse, others not so much.

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3
Q

Immune Deficiency - doesn’t cause total failure of immune system - could be part or all - it just depends. T/F?

A

True!

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4
Q

What do cytotoxic drugs do?

A

They target rapidly dividing cells. They reduce WBC production - so anemia and thrombocytopenia are also present.

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5
Q

What do corticosteroids do?

A

They disrupt migration of monocytes and neutrophils. They also cause immunosuppression, prevent t-cell release from bone marrow, and prevent cell mediated immunity and antigen-antibody binding.

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6
Q

What do cyclosporines do?

A

They block the helper t-cell (the general), so no motivation/direction is occurring.

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7
Q

Radiation - what is most sensitive with this?

A

Neutrophils and lymphocytes.

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8
Q

Radiation - location is key for damage. T/F?

A

True - some areas are more sensitive to others. Think about the arm versus a leg - bone marrow?

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9
Q

Drug and radiation induced immune deficiencies are usually not temporary. T/F?

A

FALSE - they are.

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10
Q

HIV - what does it do once it enters the body?

A

It searches for the CD4 Helper Cells. It then binds to it and it then reproduces. Once it reproduces, these cells become different - their goal is to kill others. DNA has to be manipulated as well.

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11
Q
Drugs - 
What do entry inhibitors do?
What do nucleoside and non-nucleoside reverse transcriptase inhibitors do?
What do integrase inhibitors do?
What do protease inhibitors do?
A

What do entry inhibitors do? - Block Entry.
What do nucleoside and non-nucleoside reverse transcriptase inhibitors do? - Prevents RNA –> DNA conversion.
What do integrase inhibitors do? Prevents integrase from working.
What do protease inhibitors do? Snips off pieces.

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12
Q

The ELISA test - it is the end all, be all test. T/F?

A

False - it’s the first test. Further testing needs to be done after this.

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13
Q

What is the test that confirms HIV?

A

The western blot!

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14
Q

HIV - is the viral load high or low in the beginning?

A

HIGH.

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15
Q

When does HIV become AIDS?

A

When the CD4 count is below 200.

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16
Q

What do the helper t cells do?

A

The General - they support the macrophages, stimulate antibody production from b-cells, increase leukocyte production. A 0 Count = terrible.

17
Q

When we lose immune function, is the risk of cancer increased?

A

YES