E3 WBC Patho & CBC interpretation Flashcards
What is the most abundant cell in the blood?
RBC (erythrocytes)
Men:48%
Women: 42%
What is the primary responsibility of erythrocytes? & what carries the O2?
Tissue oxygenation (hemoglobin carries O2)
What do WBC (leukocytes) due and the 5 kinds?
Protect immune function & inflammation
1. Neutrophils
2. Lymphocytes
3. Monocytes
4. Eosinophils
5. Basophils
*add to 100%
What are the Granulocytes
WBCs w/ a nucleus in several lobes & granules
-Release mediators w/ inflammatory & immunity properties
1. Neutrophils (50-67%)
2. Eosinophils (0-3%)
3. Basophils (0-2%)
What are Agranulocytes?
WBCs w/ nucleus but have very few to none granules
-Don’t release mediators but still participate in inflammatory or immune processes
1. Lymphocytes (24-40%)
2. Monocytes (4-9%)
Neutrophils
-First to arrive at site of inflammation
-Bands (immature) & Segs (mature)
-Increased with ACUTE BACTERIAL infections and TRAUMA
-Early stage of infection, Acute
-Ex. Strep throat
Lymphocytes
-Primary cells of immune response
-Increase with CHRONIC INFECTION & ACUTE INFECTION
-T & B cells (Fighting & Memory)
-Live in lymphoid tissue not bloodstream
-Ex. Chronic infection could be MRSA on foot
Monocytes
-Phagocytosis
-Increase with BACTERIAL INFECTIONS & CANCER
-Not as much as neutrophils
Eosinophils
-Increase with ALLERGIC REACTIONS or PARASITIC infections
-Worms, wheezes and weird diseases
Basophils
-Increase with ALLERGIC REACTIONs (hypersensitivities, inflammatory reactions)
-Not as much as Eosinophils
Hemoglobin Men vs women #
-Oxygen carrying capacity
-Men 13.5-17.5
-Women 12-15.5
What does it mean if your hemoglobin is low?
BLEEDING, folate/B12 deficiency, cancers, kidney & liver disease
What does it mean if your hemoglobin is high?
Polycythemia, COPD, high altitude, heavy smoking
What is hematocrit? Men vs women #?
-Percentage of blood that is made of packed RBCs
-40% means 40mL per 100mL of blood
-Men: 41-50%
-Women: 36-44%
What does low hematocrit mean?
-Anemia
-Bleeding
-Bleeding disorder
-FLUID IMBALANCE
What does high hematocrit mean?
-polycythemia
-COPD
-Dehydration
-Shock
-Congenital heart disease
Mean Corpuscle Volume (MCV)
Size of erythrocytes
Mean Corpuscle Hemoglobin (MCH)
Amount of hemoglobin in erythrocytes by weight
Normal WBC amount and what is it called when its low or high?
5,000-10,000/mm3
Increased = leukocytpsis
Decreased = leukopenia
CBC with diff
Total number of WBCs in mm3 and determination of the proportion of each of the 5 WBCs in a sample of 100 WBCs
CBC with diff interpretation: An increased % in one type means a ______ in % of another type. But, the absolute # of the second type ______
Decrease
Does not change
(We are not losing lymphocytes or neutrophils when the % goes up of another type but we are just gaining a %)
Client gets severe bacterial infection, WBC = 20,000/mm3. With a bacterial infection almost all of the increase will be _________
Neutrophils
WBC 13,000
Seg Neutrophils 70% (47-63)
Band Neutrophils 8% (0-4)
Lymphocytes 15% (20-30)
Monocytes 4% (3-8)
Eosinophils 2% (1-6)
Basophils 1% (0-2)
Acute Bacterial infection
(Immature neutrophils present)
WBC 14,200
Seg Neutrophils 26% (47-63)
Band Neutrophils 4% (0-4)
Lymphocytes 59% (20-30)
Monocytes 8% (3-8)
Eosinophils 2% (1-6)
Basophils 1% (0-2)
Viral infection or chronic bacterial infection
(Maybe MONO or some some other type of chronic ulcertive wound)
WBC 11,700
Seg Neutrophils 39% (47-63)
Band Neutrophils 7% (0-4)
Lymphocytes 29% (20-30)
Monocytes 3% (3-8)
Eosinophils 22% (1-6)
Basophils 1% (0-2)
Worms, Wheezes, Weird Diseases
Allergic reaction, parasitic, asthma attack
What else to look for w/ infection
-Increased temp
-Fever is not a disease, but a sign that the body is responding to an infection
-Fever may decrease or stop growth of microorganisms
Leukopenia
-Low neutrophil count (<1000/mm3)
-Most often cancer pts
-Susceptible to bacteria infections (Can be life threatening)
-Neutropenic precautions
What are neutropenic precautions?
-Good hygiene
-Avoid contact w/ sick people
-Avoid raw fruits, veggies, grains
-Keep door closed
Leukopenia Pharmacological treatment?
Hematopoietic agents
Drug: Filgrastim or Pegf ilgrastim
Class: Granulocyte Colony Stimulating Factors (G-CSF)
MOA of Filgrastim
Promotes proliferation, differentiation, activation of cells that make granulocytes
Indications of Filgrastim
-Malignancies
-Chemo-induced leukopenia
-Activation of cells that make granulocytes
Route and Adverse Effects of Filgrastim
IV or SQ
Bone pain & leukocytosis
MOA of Pegf ilgrastim
Increased production of neutrophils
Route and Adverse effects of Pegf ilgrastim
SQ
Bone Pain
Pegylated = delayed excretion by the kidneys (Very long half life)