CORRECT WELL DETAILED ANSWERS|LATEST
UPDATE!!!!!2026|GUARANTEED PASS|GRADED
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 elements called? - ANSWER RBCs, WBCs, and platelets
RBCs - ANSWER Contain hemoglobin which carries oxygen to tissues
WBCs - ANSWER defend against foreign infectious agents (such as bacteria, viruses,
fungi, etc.
Platelets (Plt) - ANSWER aid in the stoppage of bleeding
The remaining 55% is plasma which contains what? - ANSWER Straw/yellow fluid
which is 90% water and 10% proteins, carbohydrates, vitamins, hormones, enzymes, lipids,
salts, etc.
Transmission of microorganisms from person to person resulting in infection is called? -
ANSWER Chain of infection
1
, What is blood-borne pathogens? - ANSWER Organisms that can be transmitted
through contact with human blood or other potentially infectious fluids or specimens that
come from humans. HIV, HCV, and HBV are the viruses that are of major concern.
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-
2
UPDATE!!!!!2026|GUARANTEED PASS|GRADED
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 elements called? - ANSWER RBCs, WBCs, and platelets
RBCs - ANSWER Contain hemoglobin which carries oxygen to tissues
WBCs - ANSWER defend against foreign infectious agents (such as bacteria, viruses,
fungi, etc.
Platelets (Plt) - ANSWER aid in the stoppage of bleeding
The remaining 55% is plasma which contains what? - ANSWER Straw/yellow fluid
which is 90% water and 10% proteins, carbohydrates, vitamins, hormones, enzymes, lipids,
salts, etc.
Transmission of microorganisms from person to person resulting in infection is called? -
ANSWER Chain of infection
1
, What is blood-borne pathogens? - ANSWER Organisms that can be transmitted
through contact with human blood or other potentially infectious fluids or specimens that
come from humans. HIV, HCV, and HBV are the viruses that are of major concern.
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-
2
