Question

Question 56 (1 point)

To measure T cell function, we perform

Question 56 options:

	serum protein electrophoresis
	CD18 surface marker expression
	the NBT test
	intradermal injection of tetanus toxoid

Question 57 (1 point)

Lack of tonsils as an indicator of the lack of B cells is seen in baby boys with which of the following immunodeficiencies?

Question 57 options:

	DiGeorge syndrome
	LAD
	purine nucleoside phosphorylase
	Bruton's disease

Question 58 (1 point)

____________ infections suggest defects in antibody production, ____________ infections suggest defects in T cell function, and both types of infections suggest ________________.

Question 58 options:

	bacterial, viral, SCID
	fungal, viral, SCID
	viral, fungal, neutrophil defects
	bacterial, viral, DiGeorge

Question 59 (1 point)

Acquired immunodeficiencies can be the result of

Question 59 options:

	HIV
	alcoholism
	drugs
	any of these

Question 60 (1 point)

To diagnose an immunodeficiency of

Question 60 options:

	T and B cells, a spleen biopsy is performed followed by immunohistochemistry
	T cells, live yeast is injected intradermally and the size of the delayed type of hypersensitivity reaction is measured
	B cells, serum protein electorphoresis and immunoglobulin quantitation by nephelometry is performed
	macrophage, the enzyme levels are measured

Answer 1

Question 56 (1 point)

To measure T cell function, we perform

Answer: (B) CD18 surface marker expression.

Integrins are surface markers contains  CD18 and CD11c, expressed on all T cell population.

Question 57 (1 point)

Lack of tonsils as an indicator of the lack of B cells is seen in baby boys with which of the following immunodeficiencies?

Answer: (D) Bruton's disease.

characterized by the lack of mature B cells, resulting in severe antibody deficiency and recurrent infections.

Question 58 (1 point)

____________ infections suggest defects in antibody production, ____________ infections suggest defects in T cell function, and both types of infections suggest ________________.

Answer: (A) bacterial, viral, SCID

Pyogenic bactria cause recurrent infection suggests a defect in antibody. SCID is caused by mutations of genes involved in the development and function of infection-fighting immune cells resulting in lack of both cells.

Question 59 (1 point)

Acquired immunodeficiencies can be the result of

Answer: (A) HIV

Human immunodeficiency virus causing infection called AIDS which affects T helps cells and replicates in it.

Question 60 (1 point)

To diagnose an immunodeficiency of

Answer: (C) B cells, serum protein electorphoresis and immunoglobulin quantitation by nephelometry is performed.

B cells produce one of the serum proteins called immunoglobulin in response to infection.