Pathophysiology – Chamberlain Study
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Question 1:
A 12-year-old child fell off a swing and scraped his right knee. The injured area becomes
painful. What else would the FNP observe upon assessment?
A) Pallor at the injured site
B) Edema at the injured site
C) Decreased temperature at the site
D) Numbness at the injured site
Answer: B) Edema at the injured site
Rationale: The inflammatory response to tissue injury includes vasodilation and
increased vascular permeability, leading to localized edema, redness, warmth, and pain.
The cardinal signs of inflammation are rubor (redness), tumor (swelling/edema), calor
(heat), and dolor (pain).
Question 2:
Hemolytic disease of the newborn (HDN) can occur if the mother:
A) Is Rh-positive and the fetus is Rh-negative
B) Is Rh-negative and the fetus is Rh-positive
C) Has type A blood and the fetus has type O
D) Has type AB blood and the fetus has type B
Answer: B) Is Rh-negative and the fetus is Rh-positive
,Rationale: HDN occurs when maternal-fetal blood incompatibility exists. The most
common cause is Rh incompatibility where an Rh-negative mother carries an Rh-
positive fetus. The mother produces anti-Rh antibodies that cross the placenta and
attack fetal erythrocytes. ABO incompatibility can also cause HDN, but Rh
incompatibility is more severe.
Question 3:
Which T-lymphocyte phenotype is the key determinant of childhood asthma?
A) Cluster of differentiation (CD) 4 T-helper Th1 lymphocytes
B) CD4 T-helper Th2 lymphocytes
C) CD8 cytotoxic T lymphocytes
D) Memory T lymphocytes
Answer: B) CD4 T-helper Th2 lymphocytes
Rationale: Asthma develops because the Th2 response (in which CD4 T-helper cells
produce specific cytokines, such as interleukin-4, IL-5, and IL-13) promotes an atopic
and allergic response in the airways. Th2 cells stimulate IgE production and eosinophil
recruitment, leading to airway inflammation and hyperreactivity.
Question 4:
Exotoxins are best described by which statement?
A) They are contained in the cell walls of gram-negative bacteria
B) They are released during the lysis of bacteria
C) They are able to initiate the complement and coagulation cascades
D) They are released during bacterial growth
Answer: D) They are released during bacterial growth
Rationale: Exotoxins are proteins released during bacterial growth. They are produced
primarily by gram-positive bacteria and some gram-negative bacteria. Endotoxins
(lipopolysaccharides) are contained in the cell walls of gram-negative bacteria and are
released during cell lysis.
, Question 5:
Perceived stress elicits an emotional, anticipatory response that begins where?
A) Prefrontal cortex
B) Anterior pituitary
C) Limbic system
D) Hypothalamus
Answer: C) Limbic system
Rationale: Perceived stressors elicit an anticipatory response that begins in the limbic
system of the brain, the region responsible for emotions and cognition. The limbic
system activates the hypothalamus, which then stimulates the pituitary-adrenal axis to
produce the stress response.
Question 6:
A 13-year-old female is concerned about several pigmented skin lesions on her body.
Her primary care provider tells her that these lesions must be monitored because of
their ability to transform into malignant melanoma. These lesions are referred to as:
A) Nevi
B) Hemangiomas
C) Keratoses
D) Papillomas
Answer: A) Nevi
Rationale: Nevi (moles) are pigmented skin lesions that can transform into malignant
melanoma. Individuals with multiple atypical nevi (dysplastic nevi) have an increased risk
of developing melanoma and should be monitored regularly for changes in size, shape,
or color.
Question 7:
Cancer that has spread to distant sites is classified as which stage?
A) Stage 1
B) Stage 2