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Which of the following statements about hypersensitivity reactions is FALSE:

Which of the following statements about hypersensitivity reactions is FALSE: A. type I hypersensitivity reactions rely on IgE antibodies B. the Arthus reaction is a type III reaction C. complement depletion...

July 21, 2021 2
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One week following an injection of aqueous penicillin, a patient develops joint pains......

One week following an injection of aqueous penicillin, a patient develops joint pains, a red, pruritic skin rash, fever and lymphadenopathy. Presuming that the diagnosis of serum sickness is correct: A....

July 21, 2021 2
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Complement is involved in the pathogenesis of each of the following EXCEPT

Complement is involved in the pathogenesis of each of the following EXCEPT A. Arthus reaction. B. contact dermatitis. C. erythroblastosis foetalis. D. haemolytic transfusion ABO reaction. E. serum sickness.

July 21, 2021 2
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Severe haemolytic transfusion reactions commonly occur when

Severe haemolytic transfusion reactions commonly occur when A. the transfused blood contains antibodies against the recipient cells. B. the recipient has a high titre of antibodies against the donor cells....

July 21, 2021 2
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A two year old black male is admitted to the hospital for his second episode.........

A two year old black male is admitted to the hospital for his second episode of bacterial meningitis. His family history is positive for two other male siblings dying in infancy from sepsis. He also has...

July 20, 2021 2
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A ten month old recently had a mild URI. Over the next couple of days..........

A ten month old recently had a mild URI. Over the next couple of days, he develops a "barky cough" with intermittent stridor which is worse at night. He has a low grade fever. Crying seems to exacerbate...

July 20, 2021 2
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A 15 year old white female presents to clinic complaining of numbness..........

A 15 year old white female presents to clinic complaining of numbness in both legs which started yesterday. She has recently recovered from a URI which she had about 10 days ago. She also complains of...

July 20, 2021 2
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A 1 year old white female had a seizure after having a temperature of........

A 1 year old white female had a seizure after having a temperature of 39.5 degrees C. If her seizure was a simple febrile seizure, all of the following statements would be true except: a. the seizure would...

July 20, 2021 2
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The conversion of fibrinogen to fibrin

The conversion of fibrinogen to fibrin A. Is effected by prothrombin. B. Involves the disruption of certain peptide linkages by a proteolytic enzyme. C. Is followed by polymerization of fibrin monomers....

July 19, 2021 2
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Blood platelets multiple choice question

Blood platelets A. Are formed in the bone marrow. B. Are normally more numerous than white cells. C. Have a small single-lobed nucleus. D. Increase in number after injury and surgery. E. Alter shape when...

July 19, 2021 2
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Lymph multiple choice question.

Lymph A. Contains plasma proteins. B. Vessels are involved in the absorption of amino acids from the intestine. C. Production increases during muscular activity. D. Does not normally contain cells. E....

July 19, 2021 2
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Antibodies (agglutinins) of the A and B red cell antigens (agglutinogens)

Antibodies (agglutinins) of the A and B red cell antigens (agglutinogens) A. Are present in fetal plasma. B. Cause haemolysis of RBCs containing the A and B antigens when added to a suspension of red cells...

July 19, 2021 2
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What is cholesterol?
May 8, 2021 2
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