NR507 WEEK 2 EDAPT
HEMOGLOBINOPATHIES
ADVANCED PATHOPHYSIOLOGY
(CHAMBERLAIN UNIVERSITY)
,Introduction to Hemoglobinopathies
Hemoglobinopathy is a genetic disorder characterized by anomalies
in the structure or synthesis of hemoglobin, the oxygen-carrying
protein found in red blood cells. These disorders stem from
mutations in the genes responsible for encoding the globin chains of
hemoglobin. As a result, individuals may have altered hemoglobin
function, stability, or production and a range of clinical
manifestations. Sickle cell disease and beta- thalassemia are
among the most prevalent
hemoglobinopathies. Approximately 5% of the world’s
population are gene carriers for sickle cell disease or thalassemia
Sickle Cell Disease Pathophysiology
Which of the following best describes the primary pathophysiological
mechanism underlying sickle cell disease?
Abnormal clotting leading to vascular occlusion
Impaired immune response leading to frequent infections
Dysregulated iron metabolism causing excessive iron
deposition
Altered synthesis of hemoglobin due to a mutation in
the beta- globin gene
The primary pathophysiological mechanism in sickle cell disease
involves a mutation in the beta-globin gene (HBB), where
adenine is substituted with thymine. This genetic change leads
to the synthesis of abnormal hemoglobin, known as
hemoglobin S (HbS), causing red blood cells to assume
a sickle shape under certain conditions.
Abnormal clotting is a consequence of the sickle-shaped red blood
cells leading to vascular occlusion. Sickle cell disease can impair
the immune response, but the main pathophysiological process is
related to the abnormal hemoglobin structure.Iron overload from
altered iron metabolism is associated with conditions
such as thalassemia.
A nurse practitioner (NP) is counseling a family whose child is diagnosed
with sickle cell disease. The NP should explain that sickle cell disease is
autosomal recessive, autosomal dominant, x-linked recessive, x-linked
dominant and the child inherits the gene from either parent, both parents,
the father, the mother.
, Sickle cell disease is an autosomal recessive genetic disorder
caused by a mutation in the beta-globin gene. A child must inherit a
defective gene from both parents for the disease to manifest. A
child who only inherited the defective gene from one parent would
be a carrier of sickle cell disease.
HEMOGLOBINOPATHIES
ADVANCED PATHOPHYSIOLOGY
(CHAMBERLAIN UNIVERSITY)
,Introduction to Hemoglobinopathies
Hemoglobinopathy is a genetic disorder characterized by anomalies
in the structure or synthesis of hemoglobin, the oxygen-carrying
protein found in red blood cells. These disorders stem from
mutations in the genes responsible for encoding the globin chains of
hemoglobin. As a result, individuals may have altered hemoglobin
function, stability, or production and a range of clinical
manifestations. Sickle cell disease and beta- thalassemia are
among the most prevalent
hemoglobinopathies. Approximately 5% of the world’s
population are gene carriers for sickle cell disease or thalassemia
Sickle Cell Disease Pathophysiology
Which of the following best describes the primary pathophysiological
mechanism underlying sickle cell disease?
Abnormal clotting leading to vascular occlusion
Impaired immune response leading to frequent infections
Dysregulated iron metabolism causing excessive iron
deposition
Altered synthesis of hemoglobin due to a mutation in
the beta- globin gene
The primary pathophysiological mechanism in sickle cell disease
involves a mutation in the beta-globin gene (HBB), where
adenine is substituted with thymine. This genetic change leads
to the synthesis of abnormal hemoglobin, known as
hemoglobin S (HbS), causing red blood cells to assume
a sickle shape under certain conditions.
Abnormal clotting is a consequence of the sickle-shaped red blood
cells leading to vascular occlusion. Sickle cell disease can impair
the immune response, but the main pathophysiological process is
related to the abnormal hemoglobin structure.Iron overload from
altered iron metabolism is associated with conditions
such as thalassemia.
A nurse practitioner (NP) is counseling a family whose child is diagnosed
with sickle cell disease. The NP should explain that sickle cell disease is
autosomal recessive, autosomal dominant, x-linked recessive, x-linked
dominant and the child inherits the gene from either parent, both parents,
the father, the mother.
, Sickle cell disease is an autosomal recessive genetic disorder
caused by a mutation in the beta-globin gene. A child must inherit a
defective gene from both parents for the disease to manifest. A
child who only inherited the defective gene from one parent would
be a carrier of sickle cell disease.
