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Which of the following red cell typings are most commonly found in the African American donor population?

A beta-hemolytic Streptococcus that is bacitracin-resistant and CAMP-positive is:

Genes of the major histocompatibility complex (MHC):

The causative agent of cysticercosis is:

A patient has symptoms indicating a possible hemolytic transfusion reaction. What should be done immediately?

Which of the following electrolytes is the chief plasma cation whose main function is maintaining osmotic pressure?

According to CLIA who is responsible for classifying lab test complexity?

Sputum for AF culture is centrifuged, sediment is inoc. on LJ, inc. @35°C in 10% CO2. After 1wk overgrowth of GNR. Avoid

The major features by which molds are routinely categorized are:

Using a supravital stain, the polychromatic red blood cells below would probably be:

Which of the following results would be considered abnormal for seminal fluid?

Propionibacterium acnes is most often associated with:

A pre-analytical error can be introduced by:

In the normal adult, the spleen acts as a site for:

A patient has an all + ABS & an all + ABID. All tested cells are (3+) at the AHG phase of reactivity. See image sheet

Criteria determining Rh immune globulin eligibility include:

A salicylate level is performed to detect toxicity caused by ingestion of excess

The urinary excretion product measured as an indicator of epinephrine production is:

Cholesterol crystals will most likely be observed in urine that contains:

Which of the following complement components is a strong chemotactic factor as well as a strong anaphylatoxin?

When interpreting serum enzymes for liver damage, one should consider heart and muscle is also a significant source of

In direct fluorescent antibody test for primary syphilis, spirochetes are detected by addition of labeled antibody to:

4YO boy with chronic ear infections and is on prophylactic antibiotics. He also has a bleeding diathesis. Factor assay

An organism gave the following reactions:

Most of the carbon dioxide present in blood is in the form of:

Which of the following must be included on the label of a unit of Red Blood Cells Leukocytes Reduced?

A laboratory safety program includes engineering controls such as:

How does tissue factor pathway inhibitor inhibit coagulation?

The most rapid immediate hypersensitivity reaction is associated with:

The majority of thyroxine (T4) is converted into the more biologically active hormone:

The HMIS® or NFPA 704 hazardous material identification system rating for a slightly toxic chemical would be:

Which of the following has been associated with patients who have homozygous C3 deficiency?

At blood pH 7.40, what is the ratio of bicarbonate to carbonic acid?

When myocardial infarction occurs, the first enzyme to become elevated is

In disk diffusion susceptibility testing, as an antimicrobial agent diffuses away from the disk, concentration of drug

A urine isolate shows GPC in clusters. It is catalase pos. To identify from culture coagulase & __ should be performed

T lymphocytes that possess the CD8 surface marker mediate which of the following T cell functions?

Metabolic acidosis is described as a(n):

Normal urine primarily consists of:

The addition of antibody-sensitized red cells (Check Cells) to all negative AHG tests ensures that:

A urinalysis performed on a 27-year-old woman yields the following results:

Which of the following is consistent with standard blood bank procedure governing the infusion of fresh frozen plasma?

A tech spilled 10 gallons of formaldehyde on the floor.The chemical poses a significant health hazard, the 1st response-

Auer rods are most likely present in which of the following?

A 4+ positive reactions using gel technology will appear as red blood cells:

Gram stain from CSF has many intracellular GNDC. Which set of chem & heme CSF results would most likely be seen

A patient is diagnosed with bacterial septicemia. Which would best describe the expected change in his peripheral blood?

What is the single most effective method to prevent nosocomial spread of infection?

Which of the following is most likely to activate the alternative pathway of complement activation?

Thalassemias are characterized by

The initial immune response following fetal infection with rubella is the production of which class(es) of antibodies?

The best test to determine if a sample contains residual heparin:

Pt has history of chronic bleeding and tests show severe microcytic/hypochromic anemia. Which iron studies do you expect

Group O individuals have the most amount of H antigen on their red cells compared to other ABO phenotypes because:

68YO man arrives in the ER w/glucose of 722 mg/dL and serum acetone 4+ undiluted. An arterial blood gas is likely to be

Branching GP partially acid-fast org is isolated from bronchial washing of 63YO on chemo. Doesn't hydrolyze Tyrosine

The principle of the reagent test strip for urine protein depends on:

The major action of angiotensin II is

Which of the following crystals is seen in an amber urine with a positive bilirubin?

An individual's red blood cells give the following reactions with Rh antisera:

Virus transport medium should contain agents that

Total WBC count is 10.0 × 10³/µL (10.0 × 10⁹/L) and 25 NRBCs seen per 100 WBCs on the diff. What is the corrected count?