A gram-negative diplococcus that grows on modified Thayer-Martin medium can be further confirmed as Neisseria gonorrhoeae if it is:

A sheep blood agar plate inoculated with 0.001 mL of urine grows 70 colonies of Staphylococcus aureus. How many colonies per mL of urine should be reported?

A positive niacin test is most characteristic of Mycobacterium:

Hepatitis C (nonenteric form of non-A, non-B hepatitis) differs from hepatitis A and hepatitis B because it:

Antinuclear antibody tests are performed to help diagnose?

An arterial blood specimen submitted for blood gas analysis was obtained at 8:30 AM but was not received in the laboratory until 11:00 AM. The technologist should:

Which of the following is used to detect allergen-specific IgE?

In an indirect (sandwich) ELISA method designed to detect antibody to the rubella virus in patient serum, the conjugate used should be:

Cerebrospinal fluid for glucose assay should be:

A patient has a history of mild hemorrhagic episodes. Laboratory results include a prolonged prothrombin time and activated partial thromboplastin time. The abnormal prothrombin time was corrected by normal and adsorbed plasma, but not aged serum. Which of the following coagulation factors is deficient?