Which of the following substance produced by Group A Streptococci is responsible for producing type specific immunity:

Which are true statement regarding hospital- associated meth-resistant Staphylococcus aureus and community associated MRSA?

On sheep blood agar Haemophilus influenzae may exhibit satellite formation may exhibit satellite formation around all but which of the following organisms:

Which bacterial species is a common agent of neonatal bacteremia?

Charcot-Leyden crystals in stool may be associated with an immune response and are thought to be the breakdown products of:

Which of the following sugars has been fermented by a gram-negative rod that has produced an alkaline slant and an acid butt on triple sugar iron agar (TSI) ?

Which of the following species or organisms is the most likely to be the cause of mycotic keratitis (fungal eye infection)?

Which of the following are not considered normal flora of the gastrointestinal tract?

Which hemoglobin, when elevated, acts as a protection against sickling in patients with HbS?

An increased serum level of which of the following analytes is MOST commonly associated with decreased glomerular filtration?

Which of the following cardiovascular risk markers is a more sensitive version of a test that is used to assess inflammation?

In a normal CSF the protein concentration as compared to that in the plasma is generally:

This of the following electrolytes is most likely to be spuriously elevated in a hemolyzed specimen:

A microscopic examination of normal urine pH 8.0 shows 2+ yellow-brown thorny spheres which are MOST probably:

Which one of the following cardiac biomarkers could detect a reinfarction?

Which of the following lipid tests is LEAST affected by the fasting status of the patient?

Which of the following proteins has the FASTEST electrophoretic mobility?

Which of the following is the most common technique that is used by clinical laboratories for therapeutic drug monitoring?

In the condition kernicterus, the abnormal accumulation of bilirubin occurs in what tissue?

Which of these white blood cell populations would have the MOST side scatter when analyzed using flow cytometry?

Which of these blood levels will increase during intravascular hemolysis?

Auer rods may be seen in blasts of all the following condition EXCEPT:

A few dark blue staining granular inclusion located near the periphery of an erythrocyte are most likely:

Which of the following statements describe an eosinophil EXCEPT:

Which FAB designation is called the "true" monocytic leukemia and is characterized by monoblasts, promonocytes, and monocytes?

All of the following are characteristic findings in patients with iron deficiency anemia EXCEPT:

A deficiency in which of these vitamins leads to increased clotting time and may result in hemorrhagic disease?

Which of the following factors is not involved in the initial contact phase of the intrinsic pathway?

The M:E ratio in chronic myelocytic leukemia is usually:

The cytokine most important for increased macrophage cell activity is:

What sero- marker is the first marker to become positive in Hepatitis B and is associated with the infective stage?

The prozone effect (when performing a screening titer) is most likely to result in:

Which of the following CD marker is NOT present on a normal mature T cell?

Which of the following immunoglobulin classes is chiefly responsible for the degranulation of mast cells and basophils:

Which of the following assays is routinely used for confirmation of HIV infections?

The serum hemolytic complement level (CH50):

Which of the following is the "activation unit" in the classical complement pathway?

Which one of the following would not be considered an anatomic barrier of the innate immune system?

Which of the following Rh antigens is found in the Caucasian population:

Why is RhIG administered within 72 hours of delivery or miscarriage to an Rh-negative mother if the newborn is found to be D-positive or weak D positive?

Most antibodies present in cord blood are of what origin?

Which blood component is the most commonly used component for the replacement of multiple coagulation factor deficiencies?

In an extreme emergency, if the ABO and Rh type are unknown which of the following should be given to the patient?

For which of the following antibodies is the DAT most likely to be negative when testing a newborn for possible HDFN?

Which of the following groups of antibodies generally reacts most strongly at 40 C?

Of the following blood group antibodies, which has been most frequently associated with severe cases of hemolytic disease of the fetus and newborn (HDFN)?

Your screen cells are 3+ at immediate spin and weak (W)+ at AHG. Your auto control is negative for both phases. Some of your antibody panel cells are 3+ at immediate spin and negative at AHG. What should you suspect?

Bacterial contamination is MOST likely in which of the following blood products?

Which of the following organisms is an obligate intracellular parasite?