Week 2; Acute Care of Hematologic Alterations Flashcards
Congenital heart disease primarily includes anatomic abnormalities present at birth. Two broad categories include:
Heart failure and hypoxemia
Assessment of a child; heart rates for 1-3 y/o
80-120
Assessment of a child; heart rates for 2-9 y/o
70-115
Assessment of a child; heart rates for 9-14 y/o
65-109
Assessment of a pediatric patient
HR higher, RR higher
Failure to thrive or poor weight gain in a child is associated with
Heart disease, chest deformities, or enlarged heart.
Cardiac cath has been become a routine dx and therapeutic procedure, especially in
neonates and children
Teaching when caring for pediatric patients with HF
Important to teach developmental stage of patient, check families knowledge of illness-defining characteristics, understands definition of HF, states four characteristics, describes meds, expresses fears and concerns, shows appropriate rxn to illness
Perfusion
Total arterial blood flow through the tissues (peripheral perfusion) and blood that is pumped by the heart (central perfusion)
Perfusion
Total arterial blood flow through the tissues (peripheral perfusion) and blood that is pumped by the heart (central perfusion)
Clotting
Complex, multi-step process by which blood forms a protein-based structure (clot)
Bone marrow –
Produces RBC, WBC, and platelets. Also involved in immune response
Blood components
Plasma proteins, RBC, white blood cells, platelets
Plasma proteins include
albumin, globulins, fibrinogen
Red blood cells (erythrocytes) –
Carry oxygen and carbon dioxide
Accessory organs of blood formation
spleen and liver
Leukocytes r/t inflammation
Neutrophils, macrophages, monocytes, eosinophils, basophils
Intrinsic factors
Conditions such as circulating debris or venous stains within the blood itself that can activate platelets and trigger the clotting cascade
Extrinsic factors
Trauma, inflammation, toxins, or foreign proteins
Hematologic changes associated with aging
Decreased blood volume with lower levels of plasma proteins, bone marrow produces fewer blood cells, lower WBC count, lymphocytes have less rxn to antigens, loss of immune fxn, hemoglobin levels fall after middle-age
Fibrinolysis
Process that dissolves the clot
Hematologic assessment
•Age
•Gender
• Liver fxn
• Drug use (PRESCRIBED, OTC, ILLICIT)
• Dietary patterns
• Socioeconomic status
• Previous radiation therapy
• Occupation, hobbies
• Location of home
• Use of blood thinners, NSAIDS
• Nutrition status
• Family hx
• Current health problems
Hematologic physical assessment
• SKIN – color, jaundice, bruising, petechiae,
turgor, itching
• Head and neck – pallor, palpate lymph nodes, oral mucosa ulceration
• Cardiovascular – JVD, edema, phlebitis, BP (lower w anemia)
• Kidney and urinary - Hematauria
• Musculoskeletal – ROM, pain
• ABD– distended, enlarged liver or spleen
• CNS– B12 deficiency causes nerve degeneration, parasthesia
BP is lower with what condition?
Anemia
B12 deficiency causes
nerve degeneration, parasthesia
Hematology dx assessments
• PERIPHERAL BLOOD SMEAR
• CBC
• RETICULOCYTE COUNT – BONE MARROW FUNCTION
• PLATELET COUNT – NORMAL 150,00 TO 400,000
• HEMOGLOBIN ELECTROPHORESIS – DETECTS ABNORMAL
FORMS OF HEMOGLOBIN
• COOMBS’ TESTS (DIRECT AND INDIRECT) – BLOOD TYPING
• SERUM FERRITIN, TRANSFERRIN, AND TOTAL IRON BINDING
CAPACITY (TIBC)
Platelet count range
150,00 TO 400,000
Lab tests measuring bleeding and coagulation
Prothrombin time (PT), INR, PTT, anti-factor XA test, platelet aggregation
INR
An INR (international normalized ratio) is a type of calculation based on PT test results. Prothrombin is a protein made by the liver. Range 2-3
Hematologic imaging assessment
Radioisotopic imagine, standard x-ray
Bone marrow aspiration and biopsy is used when
When other tests show abnormal findings that indicate a possible problem in blood cell production
Bone marrow aspiration is usually done in
Iliac crest with a large bore needle, also can be done in sternum
Bone marrow aspiration; prepping the patient
Explain steps and procedure, as this causes anxiety, educate pt
Follow up care of bone marrow aspiration–
Apply pressure dressing, observe for 24 hrs for signs of bleeding, mild analgesic (NO ASPRIN), apply ice, inspect q 2 hrs, light activity for 48 hrs
UPON ASSESSMENT, THE NURSE NOTICES THAT A PATIENT
HAS BLEEDING GUMS. THE PATIENT REPORTS INCREASED
FATIGUE, MALAISE, AND “CHILLS.” WHAT IS THE PRIORITY
NURSING INTERVENTION?
A. DOCUMENT ASSESSMENT FINDINGS.
B. NOTIFY THE HEALTH CARE PROVIDER OF THE
PATIENT’S SYMPTOMS.
C. OBTAIN VITAL SIGNS AND ADMINISTER ANTIPYRETIC
MEDICATIONS.
D. REVIEW LABORATORY ANALYSIS FOR SIGNS AND
SYMPTOMS OF BONE MARROW SUPPRESSION.
ANSWER D
• THE NURSE SHOULD INITIALLY REVIEW THE PATIENT’S
LABORATORY ANALYSIS FOR COLLECTIVE SIGNS OF
PANCYTOPENIA RELATED TO THE PATIENT’S REPORT AND
ASSESSMENT FINDINGS OF FATIGUE (ANEMIA), BLEEDING
GUMS (THROMBOCYTOPENIA), AND CHILLS
(NEUTROPENIA).
• LABORATORY DATA ARE NEEDED BEFORE INFORMING
THE HEATH CARE PROVIDER AND DECIDING WHETHER TO
ADMINISTER AN ANTIBIOTIC.
• OBTAINING BLOOD CULTURES PRIOR TO ANTIBIOTIC
ADMINISTRATION IS AN IMPORTANT INTERVENTION.
ANTIPYRETIC MEDICATIONS MAY BE PRESCRIBED TO
TREAT THE PATIENT’S SYMPTOMS (“CHILLS”).
A PATIENT IS TRANSITIONING FROM IV HEPARIN THERAPY
TO ORAL WARFARIN. WHICH LABORATORY FINDING DOES
THE NURSE IDENTIFY THAT CONFIRMS WARFARIN
TREATMENT EFFICACY?
A. BLEEDING TIME OF 5 MINUTES
B. PROTHROMBIN TIME (PT) OF 18 SECONDS
C. INTERNATIONAL NORMALIZED RATIO (INR) OF 2.5
D. PARTIAL THROMBOPLASTIN TIME (PTT) OF 24.3
SECONDS
ANSWER C
• INR IS A MORE ACCURATE MEASURE OF
ANTICOAGULATION THERAPY BECAUSE OF VARIATIONS IN
PT VALUES ACROSS DIFFERENT LABORATORIES.
• THE GOAL OF WARFARIN THERAPY IS USUALLY TO
MAINTAIN THE PATIENT’S INR BETWEEN 2.0 AND 3.0
REGARDLESS OF THE ACTUAL PT IN SECONDS.
WHAT IS THE MOST IMPORTANT PRECAUTION FOR THE
NURSE TO TEACH A CLIENT WHOSE PLATELET COUNTS
USUALLY RANGE BETWEEN 50,000 TO 60,000/MM3?
• A. DRINK AT LEAST 3 LITERS OF FLUIDS PER DAY
• B. TAKE A MULTIPLE VITAMIN THAT CONTAINS IRON
• C. AVOID ASPIRIN AND ASPIRIN-CONTAINING DRUGS
• D. INCREASE INTAKE OF DARK GREEN, LEAFY
VEGETABLES
ANSWER C
• AVOID ASPIRIN CONTAINING SUBSTANCES WHICH WILL
FURTHER AFFECT CLOTTING PARTICULARLY IN A PATIENT
WITH AN ALREADY LOW PLATELET COUNT
What is the antidote for warfarin?
Vitamin K
Antidote for heparin
protamine sulphate (PS)
Sickle cell disease
Genetic hemoglobin disorder that causes RBC to be sickle shaped, rather than a round biconcave cell
Sickle cell disease results in
• Chronic anemia
• Pain
• Disability
• Organ damage
• Increased risk for infxn
• Early death d/t poor perfusion
• Formation of abnormal hemoglobin chains
• Periodic episodes of sickle cell crisis