Allergy Flashcards

1
Q

Choose the most appropriate answer from the list

  • Medication side effect
  • Food intolerance
  • Acute urticaria
  • Hayfever
  • Asthma
  • Hyper IgM
  • C1 inhibitor deficiency
  • Type I hypersensitivity
  • Chronic Granulomatous Disease
  • Type II hypersensitivity
  • Chronic urticaria
  • Type III hypersensitivity
  • Contact dermatitis
  • Type IV hypersensitivity
  • Dermatitis herpetiformis

Distressed parents rush their 7-year-old boy to A&E. He’s experiencing difficulty breathing and facial swelling, which started suddenly during a family picnic. His father mentions there was a dead wasp close to where his son collapsed.

A

Type I hypersensitivity

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2
Q

Choose the most appropriate answer from the list

  • Medication side effect
  • Food intolerance
  • Acute urticaria
  • Hayfever
  • Asthma
  • Hyper IgM
  • C1 inhibitor deficiency
  • Type I hypersensitivity
  • Chronic Granulomatous Disease
  • Type II hypersensitivity
  • Chronic urticaria
  • Type III hypersensitivity
  • Contact dermatitis
  • Type IV hypersensitivity
  • Dermatitis herpetiformis

A student presents with ‘a lot of sneezing’ and a runny nose. He’s anxious as he cannot concentrate on his upcoming summer exams, and mentions this happened to him the last 2 years.

A

Hayfever

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3
Q

Choose the most appropriate answer from the list

  • Medication side effect
  • Food intolerance
  • Acute urticaria
  • Hayfever
  • Asthma
  • Hyper IgM
  • C1 inhibitor deficiency
  • Type I hypersensitivity
  • Chronic Granulomatous Disease
  • Type II hypersensitivity
  • Chronic urticaria
  • Type III hypersensitivity
  • Contact dermatitis
  • Type IV hypersensitivity
  • Dermatitis herpetiformis

A 16-year-old boy has had several bouts of facial swelling and unexplained severe abdominal pain.

A

C1 inhibitor deficiency

Hereditary angioedema

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4
Q

Choose the most appropriate answer from the list

  • Medication side effect
  • Food intolerance
  • Acute urticaria
  • Hayfever
  • Asthma
  • Hyper IgM
  • C1 inhibitor deficiency
  • Type I hypersensitivity
  • Chronic Granulomatous Disease
  • Type II hypersensitivity
  • Chronic urticaria
  • Type III hypersensitivity
  • Contact dermatitis
  • Type IV hypersensitivity
  • Dermatitis herpetiformis

A 10-year-old girl experiences significant weight loss, abdominal pain and diarrhoea. Her parents are particularly worried about a blistering rash on her elbows and knees that she only experienced after they moved from Ireland.

A

Dermatitis herpetiformis

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5
Q

Choose the most appropriate answer from the list

  • Medication side effect
  • Food intolerance
  • Acute urticaria
  • Hayfever
  • Asthma
  • Hyper IgM
  • C1 inhibitor deficiency
  • Type I hypersensitivity
  • Chronic Granulomatous Disease
  • Type II hypersensitivity
  • Chronic urticaria
  • Type III hypersensitivity
  • Contact dermatitis
  • Type IV hypersensitivity
  • Dermatitis herpetiformis

A 48-year-old man develops and itchy rash on his hands that makes his skin dry and cracked. It’s particularly worse if he’s been gardening.

A

Contact dermatitis

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6
Q

Choose the most appropriate answer from the list

  • Adrenaline
  • IgA
  • b-Defensin
  • IgE
  • Complement C3
  • IgG
  • Contrast medium
  • Mast cell (serum) tryptase
  • Corticosteroids
  • Noradrenaline
  • Diluent
  • Peanuts
  • Filaggrin
  • Penicillin

A 30-year-old overweight Asian gentleman presents to his GP several hours after noticing that his skin is becoming increasingly itchy and the appearance of hives after admitting to have consumed a ‘cheeky packet of peanuts’ at work. What is the most likely causative factor in mediating his symptoms?

A

IgE

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7
Q

Choose the most appropriate answer from the list

  • Adrenaline
  • IgA
  • b-Defensin
  • IgE
  • Complement C3
  • IgG
  • Contrast medium
  • Mast cell (serum) tryptase
  • Corticosteroids
  • Noradrenaline
  • Diluent
  • Peanuts
  • Filaggrin
  • Penicillin

You are a medical student attending an atopy clinic and are observing a doctor administer a skin prick test. The doctor asks you to explain what she is injecting into the patient’s skin as a ‘positive control’. What component makes up the positive control?

A

Histamine

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8
Q

Choose the most appropriate answer from the list

  • Adrenaline
  • IgA
  • b-Defensin
  • IgE
  • Complement C3
  • IgG
  • Contrast medium
  • Mast cell (serum) tryptase
  • Corticosteroids
  • Noradrenaline
  • Diluent
  • Peanuts
  • Filaggrin
  • Penicillin

You are an anaesthetic doctor in surgery and notice that your patient has suddenly developed unexpected widespread rashes and is becoming increasingly hypotensive. You suspect the patient may be having an anaphylactic reaction. What is the best test to determine if the patient is undergoing a systemic allergic reaction in this situation?

A

Mast cell (serum) tryptase

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9
Q

Choose the most appropriate answer from the list

  • Adrenaline
  • IgA
  • b-Defensin
  • IgE
  • Complement C3
  • IgG
  • Contrast medium
  • Mast cell (serum) tryptase
  • Corticosteroids
  • Noradrenaline
  • Diluent
  • Peanuts
  • Filaggrin
  • Penicillin

A miserable-looking child of European descent presents to your clinic with a long, troublesome history of atopic dermatitis. Which component is a potential genetic cause of the child’s atopy that should be considered?

A

Filaggrin

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10
Q

Choose the most appropriate answer from the list

  • Adrenaline
  • IgA
  • b-Defensin
  • IgE
  • Complement C3
  • IgG
  • Contrast medium
  • Mast cell (serum) tryptase
  • Corticosteroids
  • Noradrenaline
  • Diluent
  • Peanuts
  • Filaggrin
  • Penicillin

A patient with nephrolithiasis is seen by your on-take team at the beginning of a long night shift. You see the patient and refer the patient for appropriate investigations and decide to take a short coffee break. Returning from your break a few hours later, to your dismay, you learn that the patient has developed severe abdominal pain and diarrhoea. The patient also appears to be a little confused. The registrar suggests to you that this may be a non-IgE mediated reaction. What could have happened, and what is the likely cause of the patient’s symptoms?

A

Contrast medium

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