INTRO TO MLT FINAL EXAM REVIEW
Questions With Complete Solutions Which of the temperature pairs represent correct conversion between units?
- 0 degrees Celsius, 0 degrees Fahrenheit
- 100 degrees Celsius, 98.6 degrees Fahrenheit
- 0 degrees Celsius, 32 degrees Fahrenheit
- 0 degrees Celsius, 100 degrees Fahrenheit - Correct
- neur; soft tissue; neurectomy
- genito; reproductive; genital
- thorac; foot; toractomy
- pneum; pressure; pneumonia - Correct Answers ✅B.
Answers ✅C. 0 degrees Celsius, 32 degrees Fahrenheit Which of the following combination of stem; definition; example of usage is correct?
genito; reproductive; genital Discuss the order of draw and its importance. - Correct Answers ✅The order of draw is a set of rules governing the collection order of specimens and tube use during a venipuncture. Strict attention must be paid to the specimen requirements for the test(s) ordered and to the order of draw. If blood culture is ordered along with other tests, the culture bottles are always drawn first to prevent contamination of 1 / 4
INTRO TO MLT FINAL EXAM REVIEW
Questions With Complete Solutions culture bottles with environmental bacteria that could be present on the tops of other collection tubes. If blood culture has not been ordered, the first tube collected is the one for coagulation tests (blue stopper, sodium citrate) so that no additive from another tube enters the blue top tube to cause erroneous results.After that, serum tubes (with or without separator gel or additive) are drawn. After serum tubes, heparin (green stopper), EDTA (lavender or pink), and then oxalate/fluoride tubes are drawn in this order. Observing the order of draw minimizes the possibility What are the most commonly tested body fluids? - Correct Answers ✅Blood and urine How is blood collected for procedures requiring serum? - Correct Answers ✅To obtain serum, blood is collected into a tube without anticoagulant and allowed to clot.How is blood collected for procedures requiring plasma? - Correct Answers ✅To obtain plasma, blood is collected into a tube containing one of the various 2 / 4
INTRO TO MLT FINAL EXAM REVIEW
Questions With Complete Solutions anticoagulants that prevent blood clotting.Place the following collection tubes in the appropriate order
of draw: green top, red/gray top,
light blue top, dark blue top, gray top, and lavender/pink top.
- Correct Answers ✅1. Light blue top
- Red/gray top
- Green top
- Lavender/pink top
- Dark (royal) blue top
- Gray top
What are the differences between serum and plasma? - Correct Answers ✅Plasma contains all of the blood plasma constituents including the coagulation proteins.Serum contains the plasma constituents minus the coagulation proteins (especially fibrinogen).What safety measures must be observed to avoid accidental needlesticks? - Correct Answers ✅Safety measures include (1) use of safety needles and needle holders, (2) immediately discarding used needles into a sharps container, and (3) never attempting to recap a needle. 3 / 4
INTRO TO MLT FINAL EXAM REVIEW
Questions With Complete Solutions What PPE must be worn when collecting and processing specimens? - Correct Answers ✅Appropriate PPE includes gloves; full face protection such as goggles, mask or face shield; and a buttoned, fluid-resistant laboratory coat.What are three types of tubes (cap colors) that can be used to collect serum? - Correct Answers ✅Any three are
acceptable:
- Plain red-top tubes
- Red/gray top tubes with serum separator gel
- Gold top tubes with serum separator gel
- Orange top with thrombin
- Correct Answers ✅Concentrations of some blood
- / 4
How can the timing of specimen collection affect test results?
constituents, such as iron and corticosteroids, vary with time of day (diurnal variation), so time of collection is a consideration. Blood levels of substances such as glucose, cholesterol, and triglycerides usually change after eating; these tests should be run on fasting specimens.What can cause hemolysis of a specimen? How will test results be affected if hemolysis occurs? - Correct Answers