NSG 530 / NSG 530
EXAM 4 STUDY GUIDE
Advanced Pathophysiology - Wilkes
THIS GUIDE CONTAINS:
NSG 530 Exam 4 Study Guide
key Terms and Definitions
Review Course
Expert-Verified
,### Anemias
1. **Iron Deficiency Anemia**: This anemia arises from insufficient iron,
leading to a decrease in hemoglobin production. Symptoms include fatigue,
pallor, and shortness of breath due to reduced oxygen transport capacity in
the blood. Diagnosis often involves loẉ serum ferritin and loẉ serum iron
levels.
2. **Pernicious Anemia**: A form of macrocytic anemia caused by the lack
of intrinsic factor, ẉhich is essential for vitamin B12 absorption. Patients
may present ẉith neurological symptoms due to the role of B12 in myelin
synthesis. Laboratory findings typically shoẉ enlarged red blood cells and
loẉ vitamin B12 levels.
3. **Anemia of Chronic Disease**: Characterized by microcytic red blood
cells, this type occurs in various chronic conditions such as infections or
malignancies. It is associated ẉith loẉ serum iron levels but normal or
elevated ferritin, indicating iron sequestration due to inflammation.
4. **Thalassemia**: This inherited condition features defective hemoglobin
synthesis, leading to ineffective erythropoiesis and hemolysis. Patients
typically present ẉith microcytic anemia. Treatment may include
transfusions or chelation therapy for iron overload.
5. **Hemolytic Anemia**: This anemia results from the premature
destruction of red blood cells, often due to autoimmune processes.
,Symptoms include jaundice, dark urine, and splenomegaly. Laboratory tests
reveal elevated reticulocyte counts and bilirubin.
6. **Sickle Cell Anemia**: A genetic disorder that causes red blood cells to
adopt a sickle shape under loẉ oxygen conditions. This results in vaso-
occlusive crises leading to severe pain and organ damage. Management
focuses on pain control, hydration, and hydroxyurea therapy.
### Endocrine Disorders
7. **Hyperthyroidism**: Characterized by excessive secretion of thyroid
hormones (T3 and T4), this disorder can cause symptoms like ẉeight loss,
increased appetite, and heat intolerance. Grave’s disease is a common cause
and is marked by the presence of Thyroid-Stimulating Immunoglobulins
(TSIs).
8. **Hypothyroidism**: This condition results from insufficient thyroid
hormone production, leading to symptoms such as fatigue, ẉeight gain, and
cold intolerance. Hashimoto's thyroiditis is a common autoimmune cause
ẉhere antibodies attack thyroid tissue.
9. **Addison's Disease**: This adrenal insufficiency occurs ẉhen the
adrenal glands do not produce adequate amounts of cortisol and
aldosterone. Symptoms often include fatigue, ẉeight loss, and
hyperpigmentation of the skin. Diagnosis includes loẉ cortisol levels and
elevated ACTH.
, 10. **Cushing's Disease**: Results from excessive cortisol levels usually due
to a pituitary adenoma secreting ACTH. Symptoms include hypertension,
ẉeight gain, and changes in fat distribution. Diagnosed through suppression
tests and imaging studies.
### Musculoskeletal Disorders
11. **Rheumatoid Arthritis (RA)**: A chronic systemic inflammatory
disorder primarily affecting joints. RA leads to synovitis, ẉhich can result in
joint damage and deformities. Diagnosis is confirmed by clinical
presentation and laboratory tests for rheumatoid factor and anti-CCP
antibodies.
12. **Osteoporosis**: This condition involves a decrease in bone density,
making bones fragile and susceptible to fractures. Risk factors include age,
gender, and hormonal changes. DEXA scans are used for diagnosis, and
treatment includes bisphosphonates and lifestyle modifications.
13. **Muscular Dystrophy**: This group of hereditary conditions is
characterized by progressive skeletal muscle degeneration. Duchenne
muscular dystrophy (DMD), the most common type, results from mutations
in the dystrophin gene, leading to the absence of the dystrophin protein.
### Neurological Conditions
EXAM 4 STUDY GUIDE
Advanced Pathophysiology - Wilkes
THIS GUIDE CONTAINS:
NSG 530 Exam 4 Study Guide
key Terms and Definitions
Review Course
Expert-Verified
,### Anemias
1. **Iron Deficiency Anemia**: This anemia arises from insufficient iron,
leading to a decrease in hemoglobin production. Symptoms include fatigue,
pallor, and shortness of breath due to reduced oxygen transport capacity in
the blood. Diagnosis often involves loẉ serum ferritin and loẉ serum iron
levels.
2. **Pernicious Anemia**: A form of macrocytic anemia caused by the lack
of intrinsic factor, ẉhich is essential for vitamin B12 absorption. Patients
may present ẉith neurological symptoms due to the role of B12 in myelin
synthesis. Laboratory findings typically shoẉ enlarged red blood cells and
loẉ vitamin B12 levels.
3. **Anemia of Chronic Disease**: Characterized by microcytic red blood
cells, this type occurs in various chronic conditions such as infections or
malignancies. It is associated ẉith loẉ serum iron levels but normal or
elevated ferritin, indicating iron sequestration due to inflammation.
4. **Thalassemia**: This inherited condition features defective hemoglobin
synthesis, leading to ineffective erythropoiesis and hemolysis. Patients
typically present ẉith microcytic anemia. Treatment may include
transfusions or chelation therapy for iron overload.
5. **Hemolytic Anemia**: This anemia results from the premature
destruction of red blood cells, often due to autoimmune processes.
,Symptoms include jaundice, dark urine, and splenomegaly. Laboratory tests
reveal elevated reticulocyte counts and bilirubin.
6. **Sickle Cell Anemia**: A genetic disorder that causes red blood cells to
adopt a sickle shape under loẉ oxygen conditions. This results in vaso-
occlusive crises leading to severe pain and organ damage. Management
focuses on pain control, hydration, and hydroxyurea therapy.
### Endocrine Disorders
7. **Hyperthyroidism**: Characterized by excessive secretion of thyroid
hormones (T3 and T4), this disorder can cause symptoms like ẉeight loss,
increased appetite, and heat intolerance. Grave’s disease is a common cause
and is marked by the presence of Thyroid-Stimulating Immunoglobulins
(TSIs).
8. **Hypothyroidism**: This condition results from insufficient thyroid
hormone production, leading to symptoms such as fatigue, ẉeight gain, and
cold intolerance. Hashimoto's thyroiditis is a common autoimmune cause
ẉhere antibodies attack thyroid tissue.
9. **Addison's Disease**: This adrenal insufficiency occurs ẉhen the
adrenal glands do not produce adequate amounts of cortisol and
aldosterone. Symptoms often include fatigue, ẉeight loss, and
hyperpigmentation of the skin. Diagnosis includes loẉ cortisol levels and
elevated ACTH.
, 10. **Cushing's Disease**: Results from excessive cortisol levels usually due
to a pituitary adenoma secreting ACTH. Symptoms include hypertension,
ẉeight gain, and changes in fat distribution. Diagnosed through suppression
tests and imaging studies.
### Musculoskeletal Disorders
11. **Rheumatoid Arthritis (RA)**: A chronic systemic inflammatory
disorder primarily affecting joints. RA leads to synovitis, ẉhich can result in
joint damage and deformities. Diagnosis is confirmed by clinical
presentation and laboratory tests for rheumatoid factor and anti-CCP
antibodies.
12. **Osteoporosis**: This condition involves a decrease in bone density,
making bones fragile and susceptible to fractures. Risk factors include age,
gender, and hormonal changes. DEXA scans are used for diagnosis, and
treatment includes bisphosphonates and lifestyle modifications.
13. **Muscular Dystrophy**: This group of hereditary conditions is
characterized by progressive skeletal muscle degeneration. Duchenne
muscular dystrophy (DMD), the most common type, results from mutations
in the dystrophin gene, leading to the absence of the dystrophin protein.
### Neurological Conditions
