Tag: allergy

Questions Related to allergy

Which of the following is released by T cell to activate lymphocytes and phagocytic cells?

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  1. Cytokines

  2. Antibodies

  3. Histamine

  4. None of the above

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Correct Option: A
Explanation:

The T helper cells also known as CD$ _4^+$ release cytokines and trigger the activity of other immune cells.

So, the correct answer is 'Cytokines'

Which of the following cell first move to the site in type Iv hypersensitivity reaction?

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  1. T helper

  2. T killer cell

  3. Monocytes

  4. None of the above

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Correct Option: A

The skin prick test generally test the allergy by 

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  1. Skin response

  2. Inflammatory reaction

  3. Composition of blood

  4. None of these

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Correct Option: B

Which one is allergic disease?

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  1. Bronchitis

  2. Bronchial asthma

  3. Emphysema

  4. Pneumonia

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Correct Option: B

The skin prick test is used to diagnose

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  1. Allergy

  2. Skin response

  3. Skin texture

  4. None of these

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Correct Option: A

Which of the following statement can be related to anaphylaxis?

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  1. It is also known as a systemic allergic response.

  2. It affects the whole body.

  3. It causes abdominal pain, nausea and vomiting.

  4. All of the above

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Correct Option: D

Anaphylactic shock is 

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  1. Mild local reaction to an allergen

  2. Severe local reaction

  3. Mild general reaction to an allergen

  4. Severe reaction of the whole body

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Correct Option: D
Explanation:

Anaphylaxis, also known as anaphylactic shock is a serious allergic reaction that is rapid in onset and may cause death. It typically causes an itchy rash, throat or tongue swelling, shortness of breath, vomiting, lightheadedness, and low blood pressure. Common causes include insect bites and stings, foods, and medications.  The mechanism involves the release of mediators from certain types of white blood cells triggered by either immunologic or non-immunologic mechanisms.

So, the correct answer is 'Severe reaction of the whole body'.

The chemicals which can subdue the inflammatory reaction in the skin prick test is

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  1. Histamine

  2. Melanin

  3. Haemoglobin

  4. None of the above

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Correct Option: A
Explanation:

Histamine causes a skin response. If you dont react to histamine, your allergy skin test may not reveal the allergy.

The blood test for the allergy is used to detect 

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  1. Cross reactivity

  2. Disease development

  3. Concentration of antibodies in the blood

  4. All of the above

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Correct Option: D

Hay fever is due to

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  1. Insect transmitted pollen

  2. Water borne pollen and pathogens

  3. Wind borne pollen

  4. Virus infected pollen

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Correct Option: C