hematological disorder Flashcards
decrease platelet
thrombocytopenia (bleeding)
increase platelet
thrombocytosis(clot)
increase platelet
thrombocytosis(clot)
The most common hematology disorder is
Anemia
- is not a specific disease but a sign of underlying disorder
normal value of hemoglobin
M: 13.5-17.5
F: 11.5-15.5
sign and symptoms of Anemia
- weakness, fatigue, general malaise, pallor of skin and mucous membrane, tachycardia, dyspnea
what determine the size of RBC
Mean Cospuscular Volume
the normal Mean Cospuscular Volume RBC is
81-96
what determine how much iron is in the hemoglobin
Mean Cospuscular Hgb
the normal Mean Cospuscular Hgb is
33-36
normal size of MCV
normocytic
increased MCV
macrocytic(megaloblastic anemia)
Decreased MCV
Microcytic anemia
normal MCHC
normochromic
increased MCHC
hyperchromic
Decreased MCHC
hypochromic
Nursing diagnoses for anemia
Activity intolerance
Imbalanced nutrition
Ineffective tissue perfusion
Non-compliance with prescribed therapy
most common form of anemia, common among women especially menstruating and pregnant women
IRON DEFICIENCY ANEMIA
sign and symptoms of iron deficiency anemia
pallor of skin and mucous membranes,
increased PR, shortness of breath, palpitations,
dizziness, fatigue.
bone marrow is trying to make up by making baby RBC(reticulocytosis)
Labs: microcytosis, hypochromia
causes of iron deficiency
Inadequate intake of iron or absorption disorders.
Blood loss when the loss of iron component
Exceeds dietary intake i.E. G.I.
Blood loss from an ulcer, tumor, menstrual Loss
If you a 60 years old male comes with weakness, pallor, angular cheilosis what test would you do to determine iron deficiency anemia?
CBC and FOB( fecal occult bleeding)
GI bleeding among older patient can be….
colonic cancer
Clinical Manifestations of iron deficiency anemia
fatigue, weakness, epithelial changes such as brittle
ridged nails, smooth, red, atrophic tongue, angular cheilosis
Implementation fo iron deficiency anemia
Advise to take foods rich in iron: animal meats and organ meats (beef liver, chicken liver), beans (black beans, garbanzo), leafy green vegetables, raisins.
advice patient to eat foods high in fiber
vitamin c will enhance absorption
Oral iron
Ferrous sulfate, Ferrous gluconate, Fumarate; Iron is best absorbed on empty stomach
-stool will become dark in color
which iron supplement can be given in IV form?
Fumarate
Associated withchronic disease includingarthritis, infection, and malignancy, Rheumatoid Arthritis, serious infections, carcinoma and renal failure.
Characterized by hemoglobin levels of8-10 g/dl,
-Patients with this anemia have plentiful iron store but diminished utilization by the bone marrow
ANEMIA OF INFLAMMATION
Diagnosis of anemia of inflammation
marrow plentiful iron stores, ferritin normal or slightly increased, serum iron and TIBC lowered.
Normocytic, normochromic
Implementation for anemia of inflammation
Advise client on correction of underlying cause can lead to reversal of the anemia
Encourage intake of nutritious foods
medication for anemia of inflammation
synthetic erythropoietin (Epogen, Procrit)
caused by the disorders in the heme moeity of Hgb.
characterized by presence of trapped iron in the mitochondria resulting to diminished Hgb production.
Sideroblastic Anemias
Main characteristics of sideroblastic anemia is
morphologic findings ringed sideroblasts.
what are the 2 types of sideroblastic anemia
Hereditary Sideroblastic Anemia
Acquired Sideroblastic Anemia( most common)
a X-linked condition due to abnormality in pyridoxine metabolism congenital defect in the enzyme d-aminolevilinic acid (ALA) synthetase
Hereditary Sideroblastic Anemia
what are the causes of acquired sideroblastic anemia
lead, alcohol, isoniazid
Assessment of Sideroblastic Anemia
Hgb levels 8-10 g/dl
Normocytic, macrocytic, microcytic hypochromia,
Erythroid hyperplasia, Iron staining reveals ringed sideroblast
Implementations Sideroblastic Anemia
Avoid substances that contain lead such as paint, water in pipes
Administer prescribed pyridoxine to acquired form
Transfuse blood to congenital form.
Diminished synthesis of globin chain of Hgb, RBCs are more rigid leading to early destruction Characterized by severe microcytosis and hypochromia
Thallasemia
what are the types of thallasemia
Alpha-Thalassemia
Beta-Thalassemias (Cooley’s anemia)
deficient alpha-chain synthesis, usually due to deletion of gene
most prevalent among Asians and Middle Eastern.
Alpha-thalassemia
due to malfunction of -globin chain caused by -gene abnormality.
common among African descent
severe anemia, marked hemolysis, ineffective erythropoiesis
Can be fatal within the few years of life.
With early regular transfusion therapy growth and development through childhood are facilitated
Bata-thalassemia
Assessment for thalassemia
microcytosis, hypochromia, poikilocytosis
(bizarre shaped RBC)
Alpha-Thalassemia – Bart’s Hgb;
Beta-Thalassemia – HbF
Implementation for thalassemia
Client teaching on chronic blood transfusion.
Administer prescribed folic acid supplement.
Discuss purpose of iron chelators (Deferoxamine) to delay development of iron overload.
Transfuse RBC.
Patient teaching includes during preconception counselling.
characterized by RBC that exceed 100 micro m in size.
MEGALOBLASTIC ANEMIA
what is the main characteristics of MEGALOBLASTIC ANEMIA
Defective DNA synthesis
which vitamin deficiencies can cause megaloblastic anemia
Folic acid deficiency and B12
Rareamong those whoeat uncooked vegetable, alcoholics, pregnant women malabsorption disorders
Folic Acid Deficiency
strict vegetarians, malabsorption (Crohn’s Disease, gastrectomy, ileal resection
absence of IF can cause
Vitamin B12 deficiency
Clinical Manifestations of megaloblastic anemia
weakness, fatigue, pallor, jaundice
smooth, sore, red, atrophic tongue
mild diarrhea, angular cheilosis
Vitiligo, premature graying of hair often seen in Pernicious anemia, paresthesias in the extremities, ataxia (B12)
High methylmalonic and homocysteine levels more sensitive Vit B12 deficiency.
Test for presence of intrinsic factor and intestinal function to determine cause of Vit. B12
Schilling’s Test if it is normal the cause of the anemia will be Folic acid defeciency
Test for presence of intrinsic factor and intestinal function to determine cause of Vit. B12
Schilling’s Test if it is normal the cause of the anemia will be Folic acid deficiency
Implementation for megaloblastic anemia
Pay particular attention to ambulation.
Assess patient’s need for assistive devices
Ensure safety when position sense, coordination and gait are affected.
Bland, soft foods, small frequent meals for mouth and tongue soreness.
Client teaching on chronicity of disorder and need for monthly B12 injection
Instruct on importance of regular follow-up atrophic gastritis.
damage to the marrow with replacement by fat (aplasia) markedly reduced hematopoiesis
APLASTIC ANEMIA
APLASTIC ANEMIA can caused by
can be congenital or acquired,
infections, medications, chemical or radiation
it can also cause pancytopenia
Substances Associated with Aplastic Anemia
Analgesics
Antiseizure agents (Phenytoin, Triethadione)
Antihistamines
Antimicrobials
Antineoplastic agents
Antithyroid medications
Benzene (airplane glues, paint remover, dry cleaning solutions
Chloramphenicol
Gold compounds
Heavy metals
Hypoglycemic agents
Insecticides
Phenothiazines
Sulfonamides
Sedatives
Clinical Manifestations for aplastic anemia
Symptoms of anemia: fatigue, pallor,
dyspnea
Bleeding tendencies: Purpura, bruising,
Repeated infections such as sore throat,
cervical lymphadenopathies
Retinal hemorrhage
Bone marrow biopsy: aplastic marrow
replaced with fat.
Implementations for aplastic anemia
Assess for signs of bleeding, anemic and infections.
Offending agent should be discontinued.
Prepare client for possible BMT or PBSCT
Prepare client for immunosuppressive therapy (ant thymocyte globulin and cyclosporine)
Place client on isolation room
a severe hemolytic anemia due to inherited
sickle hemoglobin gene, common among
African descent
SICKLE CELL ANEMIA
Common causes of sickling
cold weather, dehydration, hypoxemia, acidosis
Clinical Manifestations of sickle cell anemia
Patients are always anemic with Hgb levels 5-11 g/dl.
Jaundice is characteristically and obviously in the sclerae
Enlarged bones of skull and face
Tachycardia, cardiomegaly due to chronic anemia
Organs commonly involved during infarction: spleen, lungs, CNS.
Unusually susceptible to infection especially to pneumonia