NHCO PHLEBOTOMY (2024-2025) STUDY GUIDE
WITH ANSWERS
What is a bloodborne pathogen? - <<Answers>>>A
microorganism, biohazard that is carried in the blood and can
cause disease. (HIV, HBV)
What is HBV? - <<Answers>>>Hepatitis B virus, derived
from hepat = liver/itis = inflammation, is the most common
and concerning nosocomial infection for lab employees. It is
transmitted from blood to blood and can survive 7 days in
dried blood.
What are the universal precautions purpose mandated by the
CDC (center for disease control)? - <<Answers>>>A
prevention strategy in which all blood and potentially
infectious materials are treated as contagious, regardless of
the source individual's perceived status.
When should you use standard precautions? -
<<Answers>>>When there is a possibility of contact with
blood or non-intact skin.
Ch 8.
name the percentage ranges for the following WBC:
neutrophils
,lymphocytes
monocytes
eosinophils
basophils - <<Answers>>>1. 40-60%
2. 20-40%
3. 3-8%
4. 1-3%
5. 0-1%
Ch 8.
describe the purposes for the following WBC:
neutrophils
lymphocytes
monocytes
eosinophils
basophils - <<Answers>>>1. phagocytic= engulf + digest
bacteria
2. immunity during viral infection
3. largest WBC - intracellular infections/tuberculosis
4. active against antibody-labeled foreign molecules + fight
allergies
5. allergic reactions
,Ch 8.
what is plasma?
what is serum? - <<Answers>>>plasma = liquid portion of
anticoagulated blood (contains clotting factors)
serum = liquid portion of coagulated blood (no clotting
factors)
Ch 8.
What is our blood normal pH?
what is the highest number for acidic or basic? -
<<Answers>>>7 = neutral (7.35-7.45 pH for blood)
1 = acidic
14 = basic
Ch 8.
how is blood classified? - <<Answers>>>- based on the
presence or absence of antigens on the surface of each
erythrocyte (RBC)
Ch 8.
what are antigens?
what are antibodies? - <<Answers>>>- substance that can
produce an immune response
, - plasma proteins that combine with a specific antigen to
invade or destroy it
Ch 8.
what are the 4 major blood groups?
which ones are considered universal donors and recipients? -
<<Answers>>>O / A / B / AB
donor = O-
recipient = AB+
Ch 8.
The rhesus factor was discovered in which animal?
what does being RH positive mean? - <<Answers>>>- rhesus
monkey
-- rhesus protein is present on the erythrocytes (RBC)
Ch 8.
what is agglutination? - <<Answers>>>red blood cells burst
because the plasma protein that is attached to it does not
match = release toxic amounts of hemoglobin
WITH ANSWERS
What is a bloodborne pathogen? - <<Answers>>>A
microorganism, biohazard that is carried in the blood and can
cause disease. (HIV, HBV)
What is HBV? - <<Answers>>>Hepatitis B virus, derived
from hepat = liver/itis = inflammation, is the most common
and concerning nosocomial infection for lab employees. It is
transmitted from blood to blood and can survive 7 days in
dried blood.
What are the universal precautions purpose mandated by the
CDC (center for disease control)? - <<Answers>>>A
prevention strategy in which all blood and potentially
infectious materials are treated as contagious, regardless of
the source individual's perceived status.
When should you use standard precautions? -
<<Answers>>>When there is a possibility of contact with
blood or non-intact skin.
Ch 8.
name the percentage ranges for the following WBC:
neutrophils
,lymphocytes
monocytes
eosinophils
basophils - <<Answers>>>1. 40-60%
2. 20-40%
3. 3-8%
4. 1-3%
5. 0-1%
Ch 8.
describe the purposes for the following WBC:
neutrophils
lymphocytes
monocytes
eosinophils
basophils - <<Answers>>>1. phagocytic= engulf + digest
bacteria
2. immunity during viral infection
3. largest WBC - intracellular infections/tuberculosis
4. active against antibody-labeled foreign molecules + fight
allergies
5. allergic reactions
,Ch 8.
what is plasma?
what is serum? - <<Answers>>>plasma = liquid portion of
anticoagulated blood (contains clotting factors)
serum = liquid portion of coagulated blood (no clotting
factors)
Ch 8.
What is our blood normal pH?
what is the highest number for acidic or basic? -
<<Answers>>>7 = neutral (7.35-7.45 pH for blood)
1 = acidic
14 = basic
Ch 8.
how is blood classified? - <<Answers>>>- based on the
presence or absence of antigens on the surface of each
erythrocyte (RBC)
Ch 8.
what are antigens?
what are antibodies? - <<Answers>>>- substance that can
produce an immune response
, - plasma proteins that combine with a specific antigen to
invade or destroy it
Ch 8.
what are the 4 major blood groups?
which ones are considered universal donors and recipients? -
<<Answers>>>O / A / B / AB
donor = O-
recipient = AB+
Ch 8.
The rhesus factor was discovered in which animal?
what does being RH positive mean? - <<Answers>>>- rhesus
monkey
-- rhesus protein is present on the erythrocytes (RBC)
Ch 8.
what is agglutination? - <<Answers>>>red blood cells burst
because the plasma protein that is attached to it does not
match = release toxic amounts of hemoglobin
