Serological diagnosis of active or recent infection generally requires the demonstration of IgM antibody, or the demonstration of a fourfold rise in the titer of specific IgG antibody.
Which of the following would be considered most significant as it relates to serological testing:

• A.Cross reactivity is not significant
• B.Concentration of antibody is diagnostic
• C.Rise of antibody titers is diagnostic
• D.Presence of an antibody titer is generally diagnostic

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Increased concentrations of alpha-fetoprotein (AFP) in adults are MOST characteristically associated with:

• A.multiple myeloma
• B.chronic active hepatitis
• C.hepatocellular carcinoma
• D.alcoholic cirrhosis

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Although any one of the answers might be considered correct, a report of gram-positive cocci in chains provides sufficient information without going beyond what the observation might allow. In off-the record conversation with the physician, a technologist might divulge that the picture is consistent with Streptococcus; however, enterococci may have a similar Gram stain appearance, potentially leading to the wrong choice of empiric antibiotic agents.

The image shows the Gram stain prepared from the positive blood culture. What is the MOST appropriate report?

• A.Gram-positive cocci
• B.Gram-positive cocci in chains
• C.Gram-positive cocci consistent with Enterococcus
• D.Gram-positive cocci consistent with Streptococcus

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The most common specimen analyzed in the hematology section is:

• A.whole blood.
• B.serum.
• C.urine.
• D.plasma.

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MLTs must be provided with free immunization for:

• A.hepatitis B
• B.hepatitis C
• C.hepatitis A
• D.HIV

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