WGU D115 UNIT 2 questions with verified answers
A healthcare professional is conducting community education on vaccinations.
Which statement about vaccines should the professional include in the
presentation? Ans✓✓✓ Vaccines require booster injections to maintain life-long
protection.
Most vaccines require a booster to increase immunity. The initial effects of a
vaccine may diminish over time, and boosters improve protection against disease.
A vaccine is what kind of immunity Ans✓✓✓ Adaptive
Active immunization is produced by Ans✓✓✓ an individual in response to an
antigen or after immunization.
Amniocentesis is recommended for pregnant women with certain health
histories.
Which health history would result in an amniocentesis recommendation?
Ans✓✓✓ Those who have a family history of genetic disorders
Autosmal Dominant Ans✓✓✓ A pattern of inheritance in which an affected
individual has one copy of a mutant gene and one normal gene on a pair of
autosomal chromosomes.
autosomal recessive Ans✓✓✓ two copies of an abnormal gene must be present
in order for the disease or trait to develop-cystic F.
seen in siblings not parents.
, How are erythrocytes destroyed when mismatched blood is administered, causing
an ABO incompatibility? Ans✓✓✓ The complement pathway is activated in
response to blood incompatibility.
How can an X-linked recessive disease skip generations? Ans✓✓✓ The disease
can be transmitted through female carriers.
Since females have two copies of the X chromosome, the mother may provide an
unaffected X to a daughter or son. Furthermore, a daughter may not show signs
of the disease because she has the other X (the only X the father can give to a
female) to cancel it out.
How do acute and chronic inflammation differ? Ans✓✓✓ Acute- Short duration,
8-10 days from onset to healing.
Chronic inflammation- can be a continuation of acute inflammation that last 2
weeks or longer. It can also occur as a distinct process without much preceding
acute inflammation
How does the inflammatory response differ in neonates? Ans✓✓✓ Neonates
often have transiently depressed inflammatory function, particularly neutrophil
chemotaxis and alternative complement activity.
Hypersensitivity Response- I vs II Ans✓✓✓ I - IgE mediated- primary cause of
common allergies. Binds with mast cells which release histamine. (initiates allergic
reaction).
Histamine release leads to bronchial smooth muscle contraction,
bronchoconstriction, and immune response
II- tissue specific- wrong blood type administered or hemolytic disease of the
A healthcare professional is conducting community education on vaccinations.
Which statement about vaccines should the professional include in the
presentation? Ans✓✓✓ Vaccines require booster injections to maintain life-long
protection.
Most vaccines require a booster to increase immunity. The initial effects of a
vaccine may diminish over time, and boosters improve protection against disease.
A vaccine is what kind of immunity Ans✓✓✓ Adaptive
Active immunization is produced by Ans✓✓✓ an individual in response to an
antigen or after immunization.
Amniocentesis is recommended for pregnant women with certain health
histories.
Which health history would result in an amniocentesis recommendation?
Ans✓✓✓ Those who have a family history of genetic disorders
Autosmal Dominant Ans✓✓✓ A pattern of inheritance in which an affected
individual has one copy of a mutant gene and one normal gene on a pair of
autosomal chromosomes.
autosomal recessive Ans✓✓✓ two copies of an abnormal gene must be present
in order for the disease or trait to develop-cystic F.
seen in siblings not parents.
, How are erythrocytes destroyed when mismatched blood is administered, causing
an ABO incompatibility? Ans✓✓✓ The complement pathway is activated in
response to blood incompatibility.
How can an X-linked recessive disease skip generations? Ans✓✓✓ The disease
can be transmitted through female carriers.
Since females have two copies of the X chromosome, the mother may provide an
unaffected X to a daughter or son. Furthermore, a daughter may not show signs
of the disease because she has the other X (the only X the father can give to a
female) to cancel it out.
How do acute and chronic inflammation differ? Ans✓✓✓ Acute- Short duration,
8-10 days from onset to healing.
Chronic inflammation- can be a continuation of acute inflammation that last 2
weeks or longer. It can also occur as a distinct process without much preceding
acute inflammation
How does the inflammatory response differ in neonates? Ans✓✓✓ Neonates
often have transiently depressed inflammatory function, particularly neutrophil
chemotaxis and alternative complement activity.
Hypersensitivity Response- I vs II Ans✓✓✓ I - IgE mediated- primary cause of
common allergies. Binds with mast cells which release histamine. (initiates allergic
reaction).
Histamine release leads to bronchial smooth muscle contraction,
bronchoconstriction, and immune response
II- tissue specific- wrong blood type administered or hemolytic disease of the
