acute phase response Flashcards

1
Q

What is the acute phase response?

A

A rapid inflammatory response to injury or infection characterized by changes in plasma protein levels, immune cell activity, and metabolic alterations.

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2
Q

True or False: The acute phase response is always harmful to the body.

A

False: The acute phase response is a protective mechanism that helps the body to heal.

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3
Q

Name one key protein that increases during the acute phase response.

A

C-reactive protein (CRP)

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4
Q

Fill in the blank: The acute phase response is primarily mediated by __________.

A

cytokines

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5
Q

What role do cytokines play in the acute phase response?

A

Cytokines are signaling proteins that mediate and regulate immunity, inflammation, and hematopoiesis.

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6
Q

Which organ is primarily responsible for producing acute phase proteins?

A

The liver

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7
Q

Multiple Choice: Which of the following is NOT an acute phase protein? A) Fibrinogen B) Albumin C) Serum amyloid A D) C-reactive protein

A

B) Albumin

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8
Q

What is the function of fibrinogen in the acute phase response?

A

Fibrinogen aids in blood clotting and is involved in the inflammatory response.

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9
Q

True or False: The acute phase response can be measured by testing levels of specific proteins in the blood.

A

True

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10
Q

What is the typical time frame for the acute phase response to occur after an injury?

A

Within hours to a few days.

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11
Q

Fill in the blank: The acute phase response is often associated with __________ symptoms.

A

systemic

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12
Q

What is one potential complication of an exaggerated acute phase response?

A

Chronic inflammation or tissue damage.

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13
Q

Multiple Choice: Which cytokine is primarily responsible for initiating the acute phase response? A) IL-1 B) IL-6 C) TNF-alpha D) All of the above

A

D) All of the above

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14
Q

What is the role of interleukin-6 (IL-6) in the acute phase response?

A

IL-6 stimulates the liver to produce acute phase proteins.

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15
Q

True or False: The acute phase response is only activated in response to infections.

A

False: It can also be activated by tissue injury, trauma, or stress.

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16
Q

What is the significance of serum amyloid A in the acute phase response?

A

Serum amyloid A is involved in the recruitment of immune cells to sites of inflammation.

17
Q

Fill in the blank: The acute phase response can lead to __________ in the body temperature.

A

fever

18
Q

What are neutrophils, and what is their role in the acute phase response?

A

Neutrophils are a type of white blood cell that responds quickly to sites of infection or injury.

19
Q

Multiple Choice: Which of the following is a common clinical marker for the acute phase response? A) Blood glucose B) C-reactive protein C) Hemoglobin D) Cholesterol

A

B) C-reactive protein

20
Q

How does the acute phase response affect metabolism?

A

It leads to increased catabolism of proteins and lipids to provide energy for immune responses.

21
Q

True or False: The acute phase response can be beneficial in chronic diseases.

A

False: It can exacerbate chronic diseases.

22
Q

What is the relationship between the acute phase response and autoimmune diseases?

A

The acute phase response may be dysregulated in autoimmune diseases, contributing to inflammation.

23
Q

Fill in the blank: The acute phase response is part of the __________ immune system.

A

innate

24
Q

What does the term ‘acute phase proteins’ refer to?

A

Proteins whose levels change significantly in response to inflammation.

25
Q

Multiple Choice: Which of the following is a clinical application of measuring acute phase proteins? A) Diagnosing infections B) Monitoring disease activity C) Evaluating treatment responses D) All of the above

A

D) All of the above

26
Q

What is the effect of the acute phase response on appetite?

A

It often leads to decreased appetite.