ASCP Review PreTest

Immunoassays are based on the principle of:

A bottle of xylene waste should be:

A request is received in the laboratory for assistance in selecting the appropriate test(s) for detecting Lyme disease. Which of the following would be suggested?

Refer to the following data:

anti-C +
anti-D +
anti-E +
anti-c +
anti-e +

Given the reactions above, which is the most probable genotype?

Thalassemias are characterized by

An expectorated sputum is sent to the laboratory for culture from a patient with respiratory distress. The Gram stain of the specimen shows many squamos epithelial cells (>25/lpf) and rare neutrophils. The microscopic appearance of the organisms present include:

moderate gram-positive cocci in chains and diplococci
moderate gram-negative diplococci
moderate palisading gram-positive bacilli all in moderate amounts

The Gram stain is most indicative of

Proper media for culture of a urethral discharge from a man include:

When screen testing a patient for HIV antibody, which of the following is used to confirm a positive screening test?

Auer rods:

The most rapid immediate hypersensitivity reaction is associated with:

In the APTT test, the patient's plasma is mixed with:

A neonatal blood culture collected through a catheter grows a small yeast. Microscopically, the yeast appear round at one end, with a budlike structure on a broad base at the other end. Growth is enhanced around olive oil-saturated discs. The organism isolated is:

Cocaine is metabolized to:

A urine specimen with an elevated urobilinogen and negative bilirubin may indicate:

The anion gap is useful for quality control of laboratory results for:

The term "shift to the left" refers to:

The optimal incubator temperature for isolation of the Campylobacter jejuni/coli group is:

Mixed field agglutination encountered in ABO grouping with no history of transfusion would most likely be due to:

A woman in her ninth month of pregnancy has a urine sugar which is negative with the urine reagent strip, but gives a positive reaction with the copper reduction method. The sugar most likely responsible for these results is:

Bone marrow transplant donors and their recipients must be matched for which antigen system(s)?

In polycythemia vera, the hemoglobin, hematocrit, red blood cell count, and red cell mass are:

The fluorescent dye that exhibits the greatest sensitivity for quantization of DNA is:

A molecular-based test commonly used in testing donors and recipients prior to organ transplantation is:

Which technique employs the amplification of the signal resulting from probe:target hybridization rather than by amplifying the target or the probe?

A fetomaternal hemorrhage of 35mL of fetal Rh-positive packed RBCs has been detected in an Rh-negative woman. How many vials of Rh immune globulin should be given?

Maple syrup urine disease is characterized by an increase in which of the following urinary amino acids?

These laboratory results were obtained on maternal and cord blood samples:

mother: A-
baby: AB+, DAT: 3+ cord hemoglobin: 10 g/dL (100 g/L)

Does the baby have HDN?

Epithelial cell casts are most indicative of:

Which of the following is Vitamin K dependent?

The reason why carbon monoxide is so toxic is because it:

The majority of iron found in an adult is a constituent of:

Denaturation of DNA during a PCR reaction refers to the breaking:

Antinuclear antibody tests are performed to help diagnose:

The most specific enzyme test for acute pancreatitis is:

A liquid stool specimen is collected at 10:00 pm and brought to the laboratory for culture and ova and parasite examination. It is refrigerated until 10:10 am the next day, when the physician requests that the technologist look for amoebic parasites. The best course of action would be to:

The following test results are noted for a unit of blood labeled group A, Rh-negative:

Cells tested with:
anti-A 4+
anti-B 0
anti-D 3+

What should be done next?

Use of only male donors as a source of plasma intended for transfusion is advocated to reduce which type of reaction?

Which of the following stains is most frequently used to differentiate acute myelocytic from acute lymphocytic leukemia?

A yellow colony from a wound culture tested catalase-positive and coagulase negative. The organism stained as gram-positive cocci in clusters. Which of the following tests would differentiate between a cuagulase-negative Staphylococcus and Micrococcus?

Which of the following specimen requests is acceptable?

Cerebrospinal fluid for glucose assay should be:

The first procedure to be followed if the blood gas instrument is out-of-control for all parameters is:

The key structural difference that distinguishes immunoglobulin subclasses is the:

The optimum storage temperature for platelets is:

The recommended initial thyroid function test for either a healthy, asymptomatic patient, or a patient with symptoms which may not be related to thyroid disorder is:

Which characteristic best differentiates Acinetobacter species from Moraxella species?

Unless blood gas measurments are made immediately after sampling, in vitro glycolysis of the blood causes a:

Bence Jones proteins are:

Once thawed, Fresh Frozen Plasma must be transfused within:

The method of choice for performing a specific gravity measurement of urine following administration of x-ray contrast dyes is: