MLT Clinical Chemistry Final Review| 100 Questions| With Complete Solutions

A patient sample for uric acid gave an absorbance reading of 0.4; the 50 mg/dL standard used in the test gave an absorbance reading of 0.1. What is the concentration of uric acid in the patient's sample in grams per deciliter? correct answer: 0.2 g/dL Which statement describe optimal conditions for transport, handling, and storage of blood specimens for clinical chemistry testing? correct answer: Specimen brought to lab, permitted to clot, serums separated & tested as soon as possible Diurnal variation is a term that refers to: correct answer: Time of day of specimen collection Ideally, the best type of centrifuge that separates blood cells and plasma for analysis in the clinical laboratory is: correct answer: Temperature controlled centrifuge w/swinging buckets that hold 5-10 mL tubes What one item must be remembered with handling a tube of blood? correct answer: Lab coat & gloves When finishes with lab exercises for the day, which order of events should be followed? correct answer: Disinfect area, remove gloves, remove PPE, wash hands Which activity can spread HIV or HBV from one person to another outside of the laboratory? correct answer: Sexual contact Face masks and protective eyewear are designed to offer protection from: correct answer: Aerosol Universal Precautions should be observed when working with correct answer: All patients Which has the highest incidence of infectious risk in the clinical laboratory? correct answer: Hepititis Which procedure is most basic and effective in preventing the spread of infectious diseases in the hospital environment? correct answer: Washing hands between each patient A laboratory fire ignited by faulty wiring in a chemistry analyzer and partially fueled by surrounding paper products is classified as correct answer: Class A & C What does the most to minimize aerosol production during centrifugation? correct answer: Using stopper centrifuge