NR 507 Final With 5 stars rating and all the
correct answers
Innate Immunity -Correct answer-Is in place at birth to prevent damage by substances
in
... [Show More] the environment and thwart infection by pathogenic microorganisms
Two Types of Innate Immunity -Correct answer-Natural Barriers (physical, mechanical,
and biochemical) and Inflammation
Adaptive (Acquired) Immunity -Correct answer-Third line of defense that is initiated
when innate immune system signals the cells of adaptive immunity. Responsive toward
a very specific antigen. Develops slowly during first exposure, but is immediate at
second exposure.
Cells of Adaptive Immunity -Correct answer-T Lymphocytes, B lymphocytes,
macrophages, dendritic cells
Cells of Innate Immunity -Correct answer-Mast cells, granulocytes (neutrophils,
eosinophils, basophils), Natural Killer cells, platelets, and endothelial cells
The relationship between arterial perfusion and alveolar gas pressure at the base of the
lungs -Correct answer-arterial perfusion pressure exceeds alveolar gas pressure
When an individual is in an upright position -Correct answer-gravity pulls the lungs down
toward the diaphragm and compresses the bases of the lungs
Psoriasis, pityriasis rosea, lichen planus -Correct answer-inflammatory disorders
characterized by papules, scales, plaques, and erythema
Psoriasis -Correct answer-chronic, relapsing, proliferative, inflammatory disorder that
involves skin, scalp, and nails. It can occur at any age
Pityriasis rosea -Correct answer-benign, self-limiting inflammatory disorder that occurs
more often in young adults. Peaks in the spring and the fall. The cause is unknown, but
it is associated with a virus.
Pityriasis rosea symptoms -Correct answer-begins as a single lesion (herald patch) that
is circular, demarcated, and salmon-pink. Usually located on the trunk.
Lichen Planus -Correct answer-benign, autoimmune, inflammatory disorder of the skin
and mucous membranes. Linked to Hepatitis C, drugs, and film-processing chemicals.
Age of onset is usually 30-70 years old
Lichen Planus Symptoms -Correct answer-begins with flat, purple, polygonal, pruitic,
nonscaling papules. Usually located on the wrists, ankles, lower legs, and genitalia.
New lesions are pale pink and develop into a dark violet. Persistent lesions become
thickened and red (hypertrophic LP). Oral lesions are lacy white rings and may be
precancerous lesions
Croup -Correct answer-infection and obstruction of the upper airways. most commonly
occurs in children from 6 months to 3 years of age (peak at 2yo). Highest incidence in
the autumn and winter (parainfluenza and RSV seasons). More common in boys than
girls.
Chickenpox -Correct answer-Produced by varicella-zoster virus (VZV). Inbubation time
is 10-27 days (avg 14). Productive infection occurs within keratinocytes such that
vesicular lesions occur in the epidermis, and an inflammatory inflitrate is often present.
Anemia -Correct answer-reduction in total number of erythrocytes in the circulating
blood or a decrease in the quality or quantity of hemoglobin. Result from impaired
erythrocyte production, blood loss, increased erythrocyte destruction, or a combination
Pernicious Anemia -Correct answer-most common type of megaloblastic anemia.
Caused by vitamin B12 deficiency. Associated with end stage type A chronic atrophic
gastritis and results from inadequate absorption of vitamin B12
Folate (folic acid) is essential for -Correct answer-RNA and DNA synthesis within the
maturing erythrocyte. Required for synthesis of thymine and purines and conversion of
homcystine to methionine. [Show Less]