A Child Has a History of Repeated Severe Infections and Frequently

question 75

Multiple Choice

A child has a history of repeated severe infections and frequently has recurring infections with the same bacterial pathogen. A blood sample shows some lymphopenia and serological tests are negative. Based on this information, which of the following is the likeliest diagnosis for this child?

• A) systemic lupus erythematosus (SLE)
• B) Bruton-type agammaglobulinemia
• C) severe combined immune deficiency (SCID)
• D) hemolytic disease of the newborn
• E) DiGeorge syndrome

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Definitions:

Breaking Strength

The amount of tension force a material can withstand without rupture, often measured to determine material durability and performance under stress.

Confidence Interval

A range of values derived from sample data that is likely to contain the true value of an unknown population parameter, at a given probability level.

Confidence Level

The probability, expressed as a percentage, that a confidence interval contains the true population parameter.

SAT Math

A section of the SAT exam that tests mathematical knowledge and skills, including algebra, geometry, data analysis, and problem-solving.