Report the isolate as coagulase negative Staphylococcus is the correct answer because this is an isolate from a urine specimen with a coagulase negative Staphylococcus susceptible to novobiocin. Staphylococcus saprophyticus is resistant to novobiocin. Further testing is required to speciate coagulase negative Staphylococci but only if the specimen is from a sterile body site, not urine.
Gram positive cocci isolated from a catheterized urine culture on a 76-year-old male gave the following reactions:
Blood agar- creamy, white, opaque colonies
Catalase- positive
Slide coagulase- negative
Tube coagulase- negative
Novobiocin- susceptible
The next action the MLS should take is:
The agency within Department of Health and Human Services (DHHS) responsible for implementing CLIA'88 is:
Eosinophils do not have cytoplasm containing large purple/blue-staining granules. Instead, their granules are large but are orange/red in color. These granules are very distinctive for this type of cell, typically making their identification simple.
ll of the following statements describe an eosinophil EXCEPT:
Thrombocytes, or platelets, are of course involved with hemostasis, not immunity.
Immunology
Which of the following would not be considered a part of the body's cellular immune system:
Delayed hemolytic transfusion reactions (DHTR) usually occur within which time period?
As magnification INCREASES, the field of view will...
The two main areas of the clinical laboratory are:
Transfusion of red cells of any ABO type other than O to a group O patient is of course likely to cause a hemolytic transfusion reaction.
Which of the following types of packed RBCs could be transfused to a group O patient:
Healthcare workers that worked closely with patient specimens were at an increased risk of contracting which viral infection before a vaccine was developed?
The hepatitis B vaccine is a series of immunizations consisting of three injections of the hepatitis B antigen. The antigen causes the recipient of the injection to make antibodies against the antigen, hence why this is an example of active immunity.
Immunology
The hepatitis B virus vaccine was administered to MLS students during Orientation. Which type of immunity is expected to develop and provide long-term protection?
Prozone effect (due to antibody excess) will result in an initial false negative in spite of the large amount of antibody in the serum, followed by a positive result as the specimen is diluted.
The prozone effect ( when performing a screening titer) is most likely to result in:
A beam splitter is employed in a dual beam spectrophotometer.
Which of the following is not a component of a basic single beam spectrophotometer:
An automated method for measuring chloride which generates silver ions in the reaction is called:
1+ reaction has numerous small clumps and cloudy red supernatant
2+ has many medium-sized clumps and clear supernatant.
3+ has several large clumps and clear supernatant
4+ has one solid clump, no free cells, and clear supernatant
BB
Tube-based agglutination reactions in blood bank are graded from negative (0) to 4+. A reaction that has numerous small clumps in a cloudy, red background is:
Isolation and detection of Gardnerella vaginalis from vaginal secretions is improved by which of the following?
