NUR 3125 EXAM 1 QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORECT RATED A+
Q: During an acute inflammatory response, which vascular mechanism
directly causes localized swelling (edema) in the affected tissue?
Answer: ✔✔ Increased vascular permeability. (Why? Endothelial cells contract,
creating gaps that allow fluid, proteins, and white blood cells to leak into the
interstitial space.)
Q: Which specific enzyme is responsible for synthesizing the distinct
prostaglandins that trigger localized pain, vasodilation, and tissue swelling?
Answer: ✔✔ Cyclooxygenase-2 (COX-2). (Why? While COX-1 handles baseline
cellular "housekeeping," COX-2 is induced during inflammation to produce
inflammatory prostaglandins.)
Q: What is the most frequent long-term structural consequence associated
with chronic, unresolved inflammation?
Answer: ✔✔ Scar tissue formation (fibrosis). (Why? Persistent tissue
destruction leads to the excessive deposition of collagen, replacing functional
tissue with non-functional scar tissue.)
Q: If a patient presents with a severe acute sinus infection caused by a
bacterial pathogen, which specific leukocyte population would you expect to
be elevated on a white blood cell differential?
Answer: ✔✔ Neutrophils. (Why? Neutrophils are the primary, rapid-responding
phagocytes deployed to combat acute bacterial invasions.)
Q: Which diagnostic laboratory assessment is utilized by healthcare providers
to monitor immune function and properly stage the progression of an HIV
infection?
Answer: ✔✔ CD4+ T-lymphocyte count. (Why? This test quantifies the helper T-
cells targeted by the virus, establishing whether the infection has progressed to
AIDS.)
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORECT RATED A+
Q: During an acute inflammatory response, which vascular mechanism
directly causes localized swelling (edema) in the affected tissue?
Answer: ✔✔ Increased vascular permeability. (Why? Endothelial cells contract,
creating gaps that allow fluid, proteins, and white blood cells to leak into the
interstitial space.)
Q: Which specific enzyme is responsible for synthesizing the distinct
prostaglandins that trigger localized pain, vasodilation, and tissue swelling?
Answer: ✔✔ Cyclooxygenase-2 (COX-2). (Why? While COX-1 handles baseline
cellular "housekeeping," COX-2 is induced during inflammation to produce
inflammatory prostaglandins.)
Q: What is the most frequent long-term structural consequence associated
with chronic, unresolved inflammation?
Answer: ✔✔ Scar tissue formation (fibrosis). (Why? Persistent tissue
destruction leads to the excessive deposition of collagen, replacing functional
tissue with non-functional scar tissue.)
Q: If a patient presents with a severe acute sinus infection caused by a
bacterial pathogen, which specific leukocyte population would you expect to
be elevated on a white blood cell differential?
Answer: ✔✔ Neutrophils. (Why? Neutrophils are the primary, rapid-responding
phagocytes deployed to combat acute bacterial invasions.)
Q: Which diagnostic laboratory assessment is utilized by healthcare providers
to monitor immune function and properly stage the progression of an HIV
infection?
Answer: ✔✔ CD4+ T-lymphocyte count. (Why? This test quantifies the helper T-
cells targeted by the virus, establishing whether the infection has progressed to
AIDS.)
