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What is the primary function of white blood cells(Leukocytes)? ✔Correct Answer-To fight infections
What is the primary function of Red blood cells (Erythrocytes)? ✔Correct Answer-Carries
hemoglobin to provide oxygen to tissues
Whats the primary function of platelets(Thrombocytes) ✔Correct Answer--Provides basis for
coagulation to occur
-Maintains hemostasis
How long does RBCs generally live? ✔Correct Answer-120 days
Whats hemostasis? ✔Correct Answer--Its maintained by platelets
-its the balance between clot (thrombus) formation and clot(thrombus) dissolution or fibrinolysis
Where does hematopoiesis or blood formation take place? ✔Correct Answer--The bone marrow
-blood formation involves all skeletal bones in children
-blood formation involves pelvis, ribs, vertebrae, and sternum in adults
What happens in primary hemostasis? ✔Correct Answer--The severed blood vessel constrict,
circulating platelets aggregate at the site and adhere to the vessel and to one another
Where does Erythroblast arise from? ✔Correct Answer--the primitive myeloid stem cells in the
bone marrow
Whats the most hematologic condition that affects elderly patients? ✔Correct Answer--
Anemia(results from iron deficiency, nutritional deficiency(folate, vitamin B12, protein-calorie
malnutrition)
Platelet defects do not tend to cause superficial bleeding? ✔Correct Answer--False, platelet defects
cause superficial bleeding
Blood is composed of what and various type of cells? ✔Correct Answer-Plasma
What plays a key role is response to parasitic and allergic diseases? ✔Correct Answer--Eosinophil
Whats the percentage of blood volume consisting of erythrocytes? ✔Correct Answer-Hematocrit
Whats are the principle cells of the immune system that produce antibodies? ✔Correct Answer-
Mature Lymphocytes
Whats the most common test used to assess bone marrow function? ✔Correct Answer--CBC and
the peripheral blood smear which are obtained by venipuncture
,What does CBC identifies? ✔Correct Answer--Total number of blood cells(leukocytes, erythrocytes,
platelets)
-Hemoglobin
-Hematocrit(% of blood volume consisting of erythrocytes)
-RBC indices
What can happen with falsely elevated hematocrit? ✔Correct Answer-- blood cells can seem like its
within the normal range because they were already low but an infection causes them to spike up to
the normal range
Normal value for WBC(leukocytes) ✔Correct Answer-5,000 to 10,000 uL
Normal values for Segments ✔Correct Answer-38% to 71% of total
Normal values for bands ✔Correct Answer-0% to 10% of total
Normal values for Monocytes ✔Correct Answer-2% to 15% of total
Normal values of basophils ✔Correct Answer-0% to 1% of total
Normal values for Eosinophils ✔Correct Answer-0% to 5% of total
Normal values for lymphocytes ✔Correct Answer-20% to 40% of total
Normal values for hemoglobin ✔Correct Answer--Female 12-16 g/dL
-Male 14-18 g/dL
Normal values for Hematocrit ✔Correct Answer--male 40% to 52%
-Female 37% to 47%
Normal values for Platelets ✔Correct Answer-150 to 400,000/mm3
Why does male and female have different hematocrit levels? ✔Correct Answer--delusional blood
volumes related to water retention because of hormones
-Menstruation in female patients
Manifestations for patients with low hemoglobin and hematocrit ✔Correct Answer--Pallor
-fatigue
-dyspnea
-palpitations
-poor activity tolerance
-headaches
-tinnitus
-anorexia
-indigestion
-irritability
-difficulty sleeping or concentrating
-abnormal menstruation
-impotence
-loss of libido
-Chest pain
, -Headache
What manifestations of low hemoglobin or hematocrit would bring a patient to the hospital?
✔Correct Answer--Dyspnea
-Chest pain
-palpitation
Where do we assess patients for Pallor? ✔Correct Answer--oral mucus membranes
-Nail beds
-Conjunctiva of the eyes
What are some barriers to being able to assess nail beds for pallor? ✔Correct Answer--nail polish
-Fungali nails which are thick and yellow
-amputees
-Peripheral artery disease
How do we assess nail beds? ✔Correct Answer--push down on the nail bed and then release(there
should be capillary refill within 2secs)
-Assess the sides of the finger tips if nails are fungali
How would you assess for hemoglobin or hematocrit on a darker skin individual? ✔Correct
Answer--Check the conjunctiva of the eyes or oral mucus memebrane
What does a doctor do for a patient with low hemoglobin or hematocrit? ✔Correct Answer--
prescribe Iron pills
-prescribe Procrit
-give fluids if patient has BP problem
Why should we keep tract of patients white blood cell count? ✔Correct Answer--to make sure the
patient has the WBCs to fight infections and not be at risk for infections
-If the WBCs are low, we need to implement certain criterias in taking care of these
patients(isolation)
Absolute Neutrophil Count calculations ✔Correct Answer--WBC x (% Seg+ % Bands)
What are segments? ✔Correct Answer--Mature white blood cells
What are Bands? ✔Correct Answer--Immature white blood cells
When evaluating Nuetropenia, whats important to do? ✔Correct Answer--to calculate the ANC and
not rely solely on the total WBCs and percentage of neutrophils alone
What does a provider want to find out by calculating ANC? ✔Correct Answer--What the bone
marrow is producing
If
-if its producing new cells and mature ones aren't lasting
or
-if the person has mature cells but the new ones aren't coming out
Whats indicative of Neutropenia? ✔Correct Answer-when ANC falls below 1500