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NURS 6050 Quiz 3 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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NURS 6050 Quiz 3 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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  • June 19, 2024
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NURS 6050 Quiz 3
____ is the virus associated with Burkitt lymphoma in African children. - correct
answer-Epstein-Barr virus (EPV), found in nasopharyngeal secretions, is associated with
Burkitt lymphoma in African children.

______ are formed elements of the blood that are not cells, but disk-shaped cytoplasmic
fragments essential for blood clotting. - correct answer-Platelets (thrombocytes) are not true
cells but disk-shaped cytoplasmic fragments that are essential for blood coagulation and
control of bleeding.

a person with sideroblastic anemia would be likely to have ____ plasma levels of iron. -
correct answer-serum iron levels are high (Table 26-3)

an infant's hemoglobin must fall below _____ g/dL before signs of pallor, tachycardia, and
systolic murmurs occur. - correct answer-when the hemoglobin falls below 5 g/dL, pallor,
tachycardia, and systolic murmurs may occur.

atrophy of gastric mucosal cells results in pernicious anemia because of: - correct
answer-deficiency in intrinsic factor (IF) secretion may be congenital or result from adult
onset gastric mucosal atrophy and destruction of parietal cells. In older adults, virtually all
vitamin B12-deficiency anemia is caused by a failure of IF-related absorption.

characteristics of beta-thalassemia major include: - correct answer-a defect in the
uncoupling of a- and b- chain synthesis. the alpha- and beta-thalassemias are inherited
autosomal recessive disorders that cause an impaired rate of synthesis of one of the two
chains - a or b - of Hb A.

deficiencies in folate and vitamin B12 alter the synthesis of: - correct answer-these anemias
are the result of defective erythrocyte precurson DNA synthesis commonly caused by
deficiencies of vitamin B12 (cobalamin) or folate)

DIC is a paradoxical condition in which clotting and hemorrhage occur within the vascular
system simultaneously. - correct answer-true - most symptoms are the result of either
hemorrhage or thrombosis.

during an infection, lymph nodes enlarge and become tender because: - correct answer-the
B lymphocytes proliferation in response to a great deal of antigen (e.g., during infection) may
result in lymph node enlargement and tenderness (reactive lymph node).

during HDN, the newborn develops hyperbilirubinemia after birth, but not in utero because: -
correct answer-excretion of unconjugated bilirubin through the placenta into the mother's
circulation is no longer possible. hyperbilirubinemia occurs in the neonate after birth because
excretion of lipid-soluble unconjugated bilirubin through the placenta is no longer possible.

, Erythropoietin induces the selective proliferation of proerythroblasts. - correct answer-true -
in the confines of bone marrow erythoid progenitor cells proliferate and differentiate into
large, nucleated proerythroblasts that are committed into producing cells of the erythroid
series (figure 25-12)

fetuses who do not survive anemia in utero are usually stillborn, with gross edema of the
entire body, a condition called: - correct answer-hydrops fetalis.

hemphilia A is inherited in an _____ fashion. - correct answer-hemophilia A (classic
hemophilia) is inherited as an X-linked recessive disorder

heparin-induced thrombocytopenia (HIT) is described as a(n): - correct answer-heparin is a
common cause of drug-induced thrombocytopenia. HIT is an immune-mediated, adverse
drug reaction caused by IgG antibodies that lead to increased platelet consumption and a
decrease in platelet counts.

Immune thrombocytopenia (ITP) is a(n) _____ condition in adults and a(n) _____ condition
in children. - correct answer-ITP may be acute or chronic. the acute form is frequently
observed in children. Chronic ITP is more commonly observed in adults, with highest
prevalence in women between 20 and 40 years old.

In a developing embryo, erythrocyte production shifts from the vessel to the liver until the
fifth month of gestation, when hematopoiesis begins to occur in the bone marrow. - correct
answer-true - by the fifth month of gestation, hematopoiesis begins to occur in the bone
marrow and increase rapidly until hematopoietic (red) marrow fills the entire bone marrow
space. By the time of delivery, the marrow is the only significant site of hematopoiesis

In a full-term infant, the normal erythrocyte life span is _____ days, whereas the adult is
_____ days. - correct answer-in full-term infants, normal erythrocyte life span is 60 to 80
days; in premature infants it may be as short as 20-30 days; and in children and
adolescents, it is the same as that in adults - 120 days.

In DIC, a large amount of microvascular and macrovascular occlusion may occur that is not
clinically obvious. - correct answer-true

In the clotting process, collagen provides a particularly strong stimulus to activate platelets. -
correct answer-true - other stimuli of platelet activation include epinephrine, thrombin, and
collagen. Thrombin and collagen are particularly strong stimuli.

match the macrophage to its location.
Liver - correct answer-langerhans cells or alveolar macrophage or kupffer cells or mesangial
cells

match the macrophage to its location.
Lung - correct answer-langerhans cells or alveolar macrophage or kupffer cells or mesangial
cells

match the macrophage to its location.

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