CLT EXAM 1 VERIFIED SOLUTIONS 100% GUARANTEE PASS

CLT EXAM 1 VERIFIED SOLUTIONS 100% GUARANTEE PASS Which of the following statements is true? - ANSWER At minimum two levels of control should be tested daily for each test run in the laboratory. When comparing an instrument to its peer group, which statistic provides the most useful information regrind its ACCURACY - ANSWER SDI- standard deviation index When comparing an instrument to its peer group, which statistic provides the most useful description of OVERALL IMPRECISION - ANSWER CVR 2(2s) - ANSWER Detects systematic error 1(3s) - ANSWER Detects rondom error If the light source on an instrument is gradually weakening, it could contribute to what type of error? - ANSWER Systematic error If you change reagent on the instrument and your control results demonstrates a sudden and consistent increase in value, this phenomena is - ANSWER A shift in performance due to systematic error Dilution - ANSWER Decrease concentration by adding water/solvent Solute - ANSWER Substance being dissolved Solvent - ANSWER The substance in which the solute dissolves in Ratio - ANSWER Comparison of solute to solvent Example of ratios to dilutions (3/27) - ANSWER Dilution- 1/9 Dilution factor- 9 Serum needed to make dilution- 1 Saline needed to make dilution- 8 Tube dilution - ANSWER Dilution ratio in that tube alone Solution dilution - ANSWER Actual concentration of the solvent in each tube (dependent on the previous dilutions) Final concentration - ANSWER The solution dilution of the last tube %w/w - ANSWER (Unit weights of solute = grams of solute) / (100 ml of solution = 1dL of solution) %w/v - ANSWER (Grams of solute = grams of solute) / (100 mL of solution = 1 dL of solution) %v/v - ANSWER (mL of concentration = mL of concentrate) / 100 mL of solution = 1 dL of solution) Molarity - ANSWER The number of moles of solute per liter of solution Normality - ANSWER (Grams of solute/G eqw) / L Anticoagulants - ANSWER Prevent blood clot formation EX- EDTA, sodium citrate, and heparin Additive - ANSWER A substance added to something in small quantities, typically to improve or preserve it. EX- thrombin, sodium fluoride, gel 1. Yellow - ANSWER Blood cultures SPS 2. Light blue - ANSWER Citrate tube 3. Gold or Red/gray - ANSWER BD vacutainer SST gel separator tube Clot activator 4. Light green or green/gray - ANSWER Light green- lithium heparin Dark green- sodium heparin 5. Lavender - ANSWER EDTA 6. White - ANSWER BD vacutainer PPT separator tube K2, EDTA with gel 7. Gray - ANSWER Fluoride (glucose) tube Mohr Pipette - ANSWER The graduation always ends before the tip Serological Pipette - ANSWER The graduation marks continue to the tip TD pipettes - ANSWER To deliver large amounts Absence of the ring More common than TC pip