LabCE bundled exams 2023 with 100% complete solutions

Which alpha thalassemia shows no anemia, although a slight decrease in the MCV and MCHC may be seen? correct answersAlpha Thalassemia silent carrier What MINIMUM level of a particular factor will cause the APTT test to become PROLONGED ? correct answersLess than 40% Which abnormal morphologic ...

What should be done FIRST if a donor unit is found to be incompatible at the antiglobulin phase with several different recipients? A) Repeat the ABO grouping on the incompatible unit using different sera B) Do a panel made up of red cells having all low-frequency antigens C) Perform a direct anti...

This organism is gram(+) cocci in pairs that are often Lancelet-shaped (or "cat-eyes") correct answersStreptococcus pneumoniae These colonies were slow growing, small, entire and show soft beta hemolysis. Plump, Gram-negative coccobacilli, lying singly, in pairs and short chains, are seen on gr...

Which one of the following statements about endocytosis is incorrect? Phagocytosis is a form of endocytosis in endocytosis, the cell membrane invaginates and isolates a foreign particle in a vesicle. Endocytosis is a mechanism for viruses to enter cells Endocytosis is the process by which phago...

The principle behind point-of-care devices to measure hematocrit is: correct answersCalculating the conductance of the blood sample and correcting for temperature, conductivity of the plasma, and size of the fluid segment What is the "activation unit" in the classical complement pathway? correc...

How is valproic acid administered? correct answersOral preparation Direct microscopic examination of a wet preparation of vaginal discharge provides the simplest rapid diagnostic test for which of the following organisms? correct answersTrichomonas vaginalis because it can be seen on wet mount sp...

Streptococcus screen is collected on a _______________ and submitted to ________________ for __________________________ correct answersculturette (throat swab) microbiology Strep screen testing Triglycerides are collected in a _________________ and tested in ______________________ department. c...

Serological Marker for Wegener's granulomatosis correct answersAntineutrophilic antibodies Serological Marker for Rheumatic Fever correct answersAnti myocardial antibodies Serological Marker for CREST syndrome correct answersAnticentromere antibodies Serological Marker for Primary Biliary ...

what is maximum number of wbcs allowed in a leukocyte-reduced unit of rbcs? correct answers5x10^6 Rh antibodies react best at: correct answers37*C what genotype is known to be resistant to P.vivax (malaria)? correct answersFy(a-b-) the majority of lewis antibodies are: correct answersIgM ...

The antibody most frequently present in systemic lupus erythematosus (SLE) patients is directed against: correct answersNuclear antigen (used in ANA testing) The MOST accurate observation about osmotic pressure is that it is: correct answersProportional to concentration of solute particles (osmot...

Which of the following cells are capable of producing antibodies? A) Thrombocytes B) Macrophages C) Lymphocytes D) Neutrophils correct answersC) Lymphocytes A technologist is having trouble differentiating between red blood cells, oil droplets, and yeast cells on a urine microscopy. Ace...

Which of the following immunoglobins classes is chiefly responsible for the degranulation of mast cells and basophils? correct answersIgE CD5 antigen is normally found on which of the following lymphocyte populations? correct answersMature T cells Components of the second line of defense in th...

nutritionally variant streptococci (NVS) require this supplement added to blood culture medium: correct answersthiol compounds (cysteine, pyridoxal/B6) FISH is an example of a ___________ test; it does not use amplification methods correct answersdirect nucleic acid bacterial contamination, ur...

A hemocytometer is generally used for all of the following, EXCEPT correct answerssynovial fluid crystal counts In which of the following situations would a bone marrow aspirate and biopsy be MOST LIKELY recommended to aid in diagnosis correct answersEvaluation of unexplained cytopenias. A decrea...