MLT Study Guide #1 with Complete
Solutions
Hematology - Answer-the study of blood
Average adult has how much blood? - Answer-About 5-6 liters (8-12 pints)
When blood is centrifuges what happens? - Answer-It seperates into two distinct portions
plasma & cells
About 45% is cellular or formed el...
Universal Precautions - Answer✔✔-(UP) a method of infection control in which all human blood and
other body fluids containing visible blood are treated as if infectious.
Standard Precautions - Answer✔✔-a set of comprehensive safety guidelines designed to protect patients
and healthcare workers by requiring that all patients and all body fluids, body substances, organs, and
unfixed tissues be regarded as potentially infectious. (Combines UP &BI)
BSI - Answer✔✔-Body Substance Isolation
PPE - Answer✔✔-Personal Protective Equipment should be worn when handling or collecting blood or
body fluids contaminated with blood. (gloves, goggles, face shield, etc)
Work areas should be cleaned with what? - Answer✔✔-10% solution of bleach (1:10 dilution- 1 part
bleach mixed with 9 parts water) Active ingredient in household bleach is hypochlorite and a 10%
solution equals 0.5% sodium hypochlorite.
What is the clear yellow colored portion called in a centrifuged blood specimen that was colllected in a
vacuum tube without anticoagulant? - Answer✔✔-Serum (it does not contain fibrinogen)
What is the clear yellow portion called in a blood specimen with anticoagulant? - Answer✔✔-Plasma (it
contains fibrinogen)
What is the correct order of draw? - Answer✔✔-(1) Blood culture tubes (2) sodium citrate -coagulation
tubes- LIGHT BLUE TOP (3) Serum tubes with or without clot activators- RED, GOLD, OR SPECKLED TOP
(4) -eparin tubes with or without gel-GREEN TOP (5) EDTA tubes-LAVENDER TOP (6) Sodium fluoride
(glycolytic inhibitor)-GRAY TOP
Order of Draw - Answer✔✔-
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