The diagnostic value of the reticulocyte count in the evaluation of anemia is that it determines the: Response and potential of the bone marrow The greatest risk for the manifestation of anomalies in maternal rubella infection during gestation is the: First trimester The hepatitis B virus vaccine was administered to MLS students during Orientation.Which type of immunity is expected to develop and provide long-term protection? Active (The hepatitis B vaccine is a series of imm...

All of the following blood donors would be permanently deferred except which one? 38yr old male who received rabies vaccine after a dog bite 3mos ago What is the interval blood donations? 8 weeks The oral temperature of a donor must not exceed which value? 37.5C 99.5F What is the minimum acceptable hemoglobin for blood donors? 12.5 g/dL for allogeneic donors What is the lowest acceptable hematocrit for allogeneic blood donors? 38% What donor meets the requ...

Centrifuges (4) #1- Table top centrifuges are used in clinical labs to separate cells from serum or plasma. #2- Micro-centrifuges are small centrifuges used for small plastic conical containers with an integral snap cap. #3- High speed centrifuges reach speeds b/w 17,000 & 30,000 rpm. #4- Ultra Centrifuges are high speed centrifuges (15,000 rpm). Small air-driven to separate chylomicrons from serum. Pipettes types (3) 1. Automated pipettes 2. semi-automated micro-pipettes 3. Glass ...

Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin (BCG) vaccination C. Can be used instead of purified ...

Specimens that can be analyzed for carbon dioxide 1. Serum 2. Plasma 3. Whole blood What will happen if blood is exposed to air during specimen collection for pH and blood gases? p C O 2 decreases Henderson-Hasselbalch equation p H = p k a + log salt / acid What is the ratio of bicarbonate:carbonic acid in normal plasma 20:1 Lab results on a known diabetic patient revealed a decreased bicarbonate and decreased ph. Which acid base disorder would most likely cause...

What consists of the gross renal anatomy? Kidneys, Ureters, Bladder, and Urethra What is the anatomy of the Nephron? Glomerulus. proximal convoluted tubule, descending Loop of Henle, Ascending Loop of Henle, distal convoluted tubule, and collecting duct. What are the 3 primary functions of the kidneys? Glomerulur Filtration, Tubular Reabsorption, and Tubular Secretion True or False: Cells are filtered through the glomerulus? False What is the GFR? Volume of blood...

What term describes the morphology of organisms that vary in shape and size? Pleomorphic Capsules are the basis of which test? Serotyping A mucoid colony on blood agar medium indicates that which of the following characteristics may be present? Organism has a capsule. What are dark staining granules called? Metachromatic Which of the following organisms are non-motile? Shigella and Klebsiella In the bacterial growth cycle, growth ceases because nutrients a...

Which of the following is not an external defense mechanism of natural immunity that provides the human body with a defense against invading microorganisms? Bursa of Fabricius All of the following are external defense mechanisms of natural immunity that provides the human body with a defense against invading microorganisms Skin, mucus, and body fluids Having an elevated temperature during an infection is an example of what type of immunity? Innate immunity Which defense m...

Which of the four elements in proteins differentiated this class of substances from carbohydrates and lipids? Nitrogen Which of the proteins is soluble in water? Albumin How are amino acids joined together to form a chainlike structure? Peptide bonding Proteins may become denatured when subjected to mechanical agitation, heat, or chemical treatment. What does denaturation of proteins refer to? Alteration of tertiary structure Which aminoacidopathy is NOT caused by...

What term describes the morphology of organisms that vary in shape and size? Pleomorphic Capsules are the basis of which test? Serotyping A mucoid colony on blood agar medium indicates that which of the following characteristics may be present? Organism has a capsule. What are dark staining granules called? Metachromatic Which of the following organisms are non-motile? Shigella and Klebsiella In the bacterial growth cycle, growth ceases because nutrients a...