Ace ASCP Test

Ace ASCP Test Nephelometry involves the measurement of A. Light scatter B. Atomic absorption C. Light absorption D. Light transmission - ✔✔C. Light absorption When light strikes a particle in a solution, it can be ...

Ace ASCP Test Nephelometry involves the measurement of A. Light scatter B. Atomic absorption C. Light absorption D. Light transmission - ✔✔C. Light absorption When light strikes a particle in a solution, it can be absorbed, transmitted, reflected, or scattered. Nephelometry is used to measure the light scattered by particles in a solution. It is useful for measuring protein levels in fluids, and antigen-antibody complexes Most potent activator enzyme is A. Magnesium B. Sodium C. Potassium D. AOTA - ✔✔A. Magnesium Over 300 enzymes require the presence of magnesium ions for their catalytic action, including all enzymes utilizing or synthesizing ATP, or those that use other nucleotides to synthesize DNA and RNA A characteristic morphologic feature in hemoglobin C disease is A. Macrocytosis B. Spherocytosis C. Rouleaux formation D. Target cells - ✔✔D. Target cells Codocytes also known as target cells are RBCs that have the appearance of a shooting target with a bullseye Two consecutive values in which they are in the +2SD of the same mean or in the -2SD of the same mean A. 2:2s B. 10:x C. 1:2s C. R:4s - ✔✔2(2s) is a Westgard multirole that indicates a reject of a run when 2 consecutive control observations are on the same side of the mean and exceed either the mean plus 2s or mean minus 2s Precipitation of ribosomes and RNA A. Heinz bodies B. Howell-Jolly bodies C. Basophilic stippling D. Auer rods - ✔✔C. Basophilic stippling 1. Fine stippling = polychromatophilia (production of RBCs) 2. Coarse stippling = lead poisoning Mycobacterium tuberculosis - ✔✔Mycobacterium tuberculosis is an obligate pathogenic bacterial species in the family Mycobacteriaceae and the causative agent of tuberculosis. M. tuberculosis has an unusual, waxy coating on its cell surface primarily due to the presence of mycolic acid. Cells are curved rod-shaped and are often seen wrapped together, due to the presence of fatty acids in the cell wall that stick together. This appearance is referred to as cording, like strands of cord that make up a rope. M. tuberculosis is characterized I tissue by cadeating granulomas containing Langhans giant cells, which have a "horseshoe" pattern of nuclei. Description of Zygomycetes A. Septate hyphae with basidiospores B. Septate hyphae with sporangiospores C. Aseptate hypae with sporangiospores D. Aseptate hyphae with basidiospores - ✔✔C. Aseptate hypae with sporangiospores According to AABB standards, Fresh Frozen Plasma (FFP) must be infused within what period of time following thawing? A. 24 hours B. 36 hours C. 48 hours D. 72 hours - ✔✔A. 24 hours Tropical sprue has the peripheral blood picture of A. Malaria B. Thalassemia C. Megalobalstic anemia D. IDA - ✔✔C. Megaloblastic anemia. Tropical sprue is a malabsorption disease commonly found in tropical regions marked with abnormal flattening of the villi and inflammation of the lining of the small intesting. Megaloblasitc anemia is Macrocytic/Normochromis anemiwq What is used for cleaning surfaces in a laboratory A. 5% Sodium Hypochlorite B. 10% Sodium Hypochlorite C. 15% Sodium Hypochlorite D. NOTA - ✔✔B. 10% Sodium Hypochlorite Sodium hypochlorite (NaqOCL) is a comound that can be effeciey used for water purification. It is used on a large scale for surface purification, bleaching, odor removal, and water disinfection Which of the following disease results from a familial absence of high density lipoprotein (HDL) A. Krabbe Disease B. Gaucher Disease C. Tangier Disease D. Tay-Sachs Disease - ✔✔C. Tangier Disease Tangier disease is an inherited disorder characterized by significantly reduced levels of high-density lipoprotein (HDL) in the blood. HDL transports cholesterol and certain fats called phospholipids from the body's tissues to the liver, where they are removed from the blood. HDL is often referred to as "good cholesterol" because high levels of this substance reduce the chances of developing heart and blood vessel disease Which of the following disorders is associated with Dohle bodies and giant platelets A. Alder-Reilly anomaly B. Chediak Higashi syndrome C. May-Hegglin anomaly D. Pelger-Huet anomaly - ✔✔C. May-Hegglin anomaly May-Hegglin anomaly (MHA) is an autosomal dominant disorder characterized by various degrees of thrombocytopenia that may be associated with purpura and bleeding; giant platelets containing few granules; and large, well-defined, basophilic, cytoplasmic inclusion bodies in granulocytes that resemble Dohle bodies An antiepileptic (or anticonvulsant) used to control seizure disorders is A. Acetaminophen B. Lithium C. Phenytoin D. Digoxin - ✔✔C. Phenytoin Phenytoin is an antiepileptic drug, also called an anticonvulsant. It works by slowing down impulses in the brain that cause seizures. Phenytoin is used to control seizures What test is used to monitor unfractionated heparin therapy A. APTT B. PT C. drvvt D. TT - ✔✔A. APTT Zollinger-Ellison (Z-E) syndrome is characterized by great (for example, 20 fold) elevation of the level of A. Pepsin B. Gastrin C. Glucagon D. Cholecystokinin - ✔✔B. Gastrin Zollinger-Ellison syndrome (ZES) is caused by a non-beta islet cell, gastrin-secreting tumor of the pancreas that stimulates the acid-secreting of the stomach to maximal activity, with consequent gastrointestinal mucosal ulceration Which of the following is a quantitative assay for fecal fat A. H2O2 B. NADH C. Sudan Black D. Weighing and extraction - ✔✔D. Weighing and extraction The quantitative test involves drying and weighting a 72-hour stool specimen, then using an extraction technique to separate the fats, which are subsequently evaporated and weighed. This measurement of the total output of fecal fat per 24 hours in a threeday specimen is the most reliable test for steatorrhea. Bilirubin crystals - ✔✔Bilirubin crystals along with Tyrosine and Leucine crystals seen/indicative of liver disease Anti IgG (+); C3d (+); what should the MLS do? A. Elution B. IAT C. DAT D. Pre-warm - ✔✔A. Elution In the blood bank world, the term "elution" refers to removing (or "dissociating") an antibody that is attached to the surface of a red blood cell. This procedure is most commonly used in identification of complicated antibodies, sometimes in the workup of transfusion reactions or hemolytic disease of the newborn, as well as in the workup of warm autoantibodies Sezary syndrome A. Monocytes B. B-cells lymphoproliferativ