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3129 Exam 2
n/a
312
Nursing
Undergraduate 3
05/28/2014

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Term
What are the gas transport abbreviations?
Definition
P= partial pressure
a=arterial
v=venous
c=capillary
S=saturation
Term
What is FlO2?
Definition
fraction of inspired oxygen; % O2 someone is being given
Term
What is the O2 percentage of room air?
Definition
20.9
Term
How does O2 travel in the body?
Definition
It is bound to hemoglobin
Term
What does PaO2 do to O2?
Definition
drives it to bind or separate from hemoglobin; tight in lungs, loose in tissues
Term
What is the rule of O2 transport?
Definition
30-60-90; relationship between PaO2 and SaO2
Term
What happens when there is a shift to the left in the oxyhemoglobin dissociation curve?
Definition
increased affinity of hemoglobin for O2; More difficult for hemoglobin to release bound O2
Term
What causes a shift to the left in the oxyhemoglobin dissociation curve?
Definition
decreased PaCO2; alkalosis; decreased metabolism; increased altitude
Term
What happens when there is a shift to the right in the deoxyhemoglobin dissociation curve?
Definition
decreased affinity of hemoglobin for O2; easier for hemoglobin to release O2
Term
What causes a shift to the right in the oxyhemoglobin dissociation curve?
Definition
increased PaCO2; acidosis; increased metabolism (stress); fever
Term
What form does most of the CO2 in the body take?
Definition
bicarbonate in a buffered form; 60-90%; HCO3 (same as CO2 in electrolyte profile)
Term
What is the pH of arterial blood?
Definition
7.35-7.45
Term
What is a key determinate of blood pH?
Definition
carbonic acid; H2CO3
Term
What is the most important buffering system?
Definition
carbonic acid bicarbonate system
Term
Describe the Henderson-Hasselbach relationship
Definition
1 CO2 (as carbonic acid) balances with 20 bicarb
Term
The respiratory system compensates for ____ problems while the renal system compensates for _____ problems
Definition
metabolic; respiratory
Term
____ is a measure of metabolic status which is managed by the ____
Definition
bicarb; kidneys
Term
ID acid-base imbalance:
depression of HCO3-
Definition
metabolic acidosis
Term
ID acid-base imbalance:
elevation of PCO2 due to hypoventilation
Definition
respiratory acidosis
Term
ID acid-base imbalance:
elevation of HCO3-
Definition
metabolic alkalosis
Term
ID acid-base imbalance:
depression of PCO2 due to hyperventilation
Definition
respiratory alkalosis
Term
Define DKA
Definition
diabetic ketoacidosis
Term
What can cause metabolic acidosis?
Definition
lactic acidosis, shock, renal failure
Term
What are the clinical manifestations of metabolic acidosis?
Definition
headache, lethargy, tachycardia, anorexia; deep rapid respirations (kussmaul) to compensate
Term
What is the purpose of the anion gap?
Definition
to distinguish different types of metabolic acidosis
Term
What is the cause of respiratory acidosis?
Definition
hypoventilation r/t various lung disorders
Term
What are the clinical manifestations of respiratory acidosis?
Definition
rapid RR followed by depressed RR; lethargy; seizures
Term
What are the clinical manifestations of metabolic alkalosis?
Definition
shallow slow respirations; weakness; confusion; tachycardia
Term
The clinical manifestations of respiratory alkalosis are similar to what?
Definition
hypocalcemia
Term
What are the normal values for ABG?
Definition
PaO2= 80-100
PaCO2= 35-45
pH=7.35-7.45
HCO3= 22-26
SaO2= 93-100
Term
Label the 4 components of ABG
Definition
Oxygen analysis= PaO2 and SaO2
acid base= pH
respiratory= PaCO2
metabolic= HCO3
Term
What are the 3 steps of ABG analysis process?
Definition
evaluate oxygenation, pH (acidosis/alkalosis), determine primary problem (ROME)
Term
Define ROME
Definition
Respiratory, Opposite, Metabolic, Equal; If respiratory is opposite of pH its a respiratory issue. If metabolic component is equal in direction to pH then issue is metabolic
Term
How do the lungs compensate for metabolic issues?
Definition
increase RR for metabolic acidosis; decrease RR for metabolic alkalosis
Term
How do kidneys compensate for respiratory issues?
Definition
retain HCO3 for acidosis; make less HCO3 for respiratory alkalosis
Term
ID compensation:
pH is abnormal; compensating values WNL
Definition
uncompensated
Term
ID compensation:
pH is abnormal; compensating system values are abnormal with evidence of compensation
Definition
partially compensated
Term
ID compensation:
pH is normal; compensating system values are abnormal with signs of compensation
Definition
totally compensated
Term
What are the 4 components of blood?
Definition
plasma, rbc, wbc, platelets
Term
What components of the RBC are proportional?
Definition
RBCs, Hgb, Hct
Term
What are the two types of leukocytes?
Definition
granulocytes and agranulocytes (immunocytes)
Term
Define hematopoiesis
Definition
blood cell production
Term
What two areas of the body are responsible for hematopoiesis?
Definition
liver/spleen and bone marrow
Term
What are the two stages of hematopoiesis?
Definition
proliferation and differentiation
Term
Define CFU
Definition
colony forming unit
Term
What are the two types of CFUs?
Definition
myeloid stem cell; lymphoid stem cell
Term
Define globulins; what are they made of?
Definition
plasma proteins; two pairs of polypeptide chains
Term
What is hemoglobin made of?
Definition
four iron proroporphyrin complexes
Term
What are the 3 types of Hgb?
Definition
OxyHgb (carries O2); DeoxyHgb (has released its O2), Methemoglobin (cannot carry O2)
Term
What are the 3 building blocks of Hgb?
Definition
proteins, vitamins, minerals
Term
What is the purpose of vitamin b12?
Definition
erythrocyte maturation; facilitator of folate metabolism; stored until needed for erythropoiesis
Term
What is needed for B12 absorption?
Definition
Intrinsic Factor
Term
What is the purpose of folic acid?
Definition
synthesis of DNA/RNA; erythrocyte maturation; not IF dependent
Term
What is the function of iron?
Definition
critical for hgb synthesis
Term
How is iron removed from the body?
Definition
MPS; mononuclear phagocyte system after 120 days in spleen
Term
What are the storage forms of iron?
Definition
ferritin and hemosiderin
Term
What are the 7 Ds of psychopathology?
Definition
distress, dysfunction, danger, duration, degree, deviance, and depression
Term
What are the 4 aspects of the stress diathesis model?
Definition
biological, environmental, psychological, social
Term
What was the first historical record of depression?
Definition
Hippocrates clinically described melancholia
Term
Depression is most common in what two groups?
Definition
Women and anyone over 50
Term
What are the 5 major types of depression?
Definition
major depressive disorder, dysthymic disorder, postpartum onset, seasonal affective disorder, depression with psychotic features
Term
Describe serotonin r/t depression
Definition
kicks off production of brain cells; depression occurs with imbalance; can't be measured
Term
Describe norepinephrine r/t depression
Definition
decreased in depression; emotion regulation
Term
What are the 5 biological influences on depression?
Definition
hormonal, nutritional and medicational imbalance, neurological disorder, electrolyte imbalance
Term
Describe the HPA Axis
Definition
hypothalamus (CRH)-Anterior Pituitary (ACTH)-Adrenal cortex (CORT); negative feedback; increased activity leads to increased cortisol
Term
Who coined the term melancholia?
Definition
Freud
Term
Who was involved in the learned helplessness experiment?
Definition
Dogs (beaten); Martin Seligman
Term
ID age group of depression:
feeding problems, failure to thrive, developmental delays
Definition
0-3
Term
ID age group of depression:
aggression, accident prone, phobias
Definition
3-5
Term
ID age group of depression:
physical complaints, clingy, aggression
Definition
6-8
Term
ID age group of depression:
morbid thoughts excessive worry, not playing
Definition
9-12
Term
ID age group of depression:
running away, delinquency, apathy
Definition
adolescence
Term
ID development stage:
appreciation of interdependence and relatedness
Definition
trust vs mistrust; infant-1
Term
ID development stage:
acceptance of life cyle
Definition
autonomy vs shame; 1-3
Term
ID development stage:
humor, empathy, resilience
Definition
3-6; initiative vs guilt
Term
ID development stage:
humility; acceptance of course of one's life
Definition
6-12; industry vs inferiority
Term
ID development stage:
sense of complexity of life; merge sensory, logic, and aesthetic perception
Definition
Identity vs confusion; 12-19
Term
ID development stage:
sense of complexity of relationships; loving freely
Definition
intimacy vs isolation; 20-25
Term
ID development stage:
caring for others, empathy, concern; agape
Definition
26-64; generativity vs stagnation
Term
ID development stage:
sense of integrity strong enough to withstand death of self
Definition
65-death; integrity vs despair
Term
What is the 3rd leading COD for 15-24 and 4th for ages 10-14?
Definition
suicide
Term
The peritubular cells of the kidney produce what?
Definition
erythropoietin
Term
What stimulates the production and release of erythropoietin?
Definition
hypoxia
Term
Every time an RBC dies ____ is produced and must be processed by the _____
Definition
bilirubin; liver
Term
ID RBC Disease:
reduction in total number of erythrocytes in blood or hgb
Definition
anemia
Term
What 3 events in the body can lead to anemia?
Definition
impaired RBC production, acute/chronic blood loss, increased RBC destruction
Term
Define MCV
Definition
mean cell/corpuscular volume (size)
Term
Define MCH
Definition
mean cell/corpuscular hgb
Term
Define MCHC
Definition
mean cell/corpuscular hgb concentration (hemoglobin content); hyper chromic, normochromic, hypochromic
Term
What are the two types of anemia?
Definition
anisocytosis (RBC in many sizes) and poikilocytosis (RBC in many shapes)
Term
Describe the 2 magnitudes and onsets of anemia
Definition
gradual (less symptomatic), sudden (more symptomatic); Hgb of 8g is more symptomatic than 12g
Term
What are the 6 classic signs of anemia?
Definition
pallor, fatigue, weakness, dypnea, DOE, dizziness
Term
What are the compensatory manifestations of anemia?
Definition
CDV (tachycardia, palpitations, vasoconstriction); tachypnea; increase ADH
Term
What are the 3 anemia classifications?
Definition
macrocytic, microcytic hypochromic, normocytic normochromic
Term
Macrocytic anemias can be ___ or ____
Definition
normochromic; hyperchromic
Term
What are two possible causes of Macrocytic normochromic anemias?
Definition
vitamin b12 deficiency; folate deficiency
Term
Describe pernicious anemia
Definition
vitamin b12 deficiency; formerly fatal; congenital, appears following gastrectomy;
Term
What is considered severe anemia and what are some of its clinical manifestations?
Definition
<7g/dl; beffy red tongue, hyperbilirubinemia, jaundice, parathesias
Term
Define reticulocyte
Definition
immature RBCs; no nucleus; 1% of RBC
Term
What are the indications of a low retic count? High?
Definition
Low= aplastic anemia, ineffective erythropoiesis; High=bone marrow response to anemia caused by hemolysis or blood loss; corrected value is most important
Term
What is the equation for retic correction?
Definition
Retic% x (patient Hct/Normal hct)
Term
What are the clinical manifestations of folate deficiency anemia?
Definition
classic signs of anemia; dysphagia watery diarrhea; painful ulcerations of cheeks and tongue
Term
What is RDW
Definition
red cell distribution width; detects subtle size variations before MCV changes
Term
In what 3 cases does RDW increase before MCV becomes abnormal?
Definition
early iron deficiency anemia, b12 deficiency, and folate deficiency
Term
What is microcytic hypochromic anemia related to?
Definition
disorders of iron metabolism, heme and globin synthesis
Term
What are the two types of Microcytic hypochromic anemias?
Definition
iron deficiency and sideroblastic
Term
What is the most common cause of iron deficiency anemia in the US?
Definition
bleeding
Term
What is a sign of iron deficiency anemia?
Definition
craving non food items (dirt and ice); called PICA
Term
What are the clinical manifestations of iron deficiency anemia?
Definition
classic signs, chlorosis (green/yellow skin), koilonychias, glossitis, tingling, gastritis; bluish tinge under the eye
Term
Describe sideroblastic anemia
Definition
group of disorders characterized by anemia; altered mitochondrial metabolism r/t ineffective iron uptake; ringed sideroblasts in bone marrow
Term
Describe normocytic normochromic anemia
Definition
red cells normal in size and Hgb but insufficient in number
Term
What are the 4 possible types of normocytic normochromic anemia?
Definition
aplastic anemia, posthemorrhagic anemia, hemolytic anemia, anemia of chronic disease/inflammation
Term
Describe the patho of aplastic anemia
Definition
caused by bone marrow failure; acquired or hereditary; acquired is unknown cause (primary) or chemotherapy and other chemical (secondary); precursor for leukemia
Term
What are the clinical manifestations of aplastic anemia?
Definition
classic signs of anemia, infections (if low WBCs) and bleeding (if low platelets)
Term
Describe the patho of post hemorrhagic anemia
Definition
caused by acute blood loss (orthopedic surgery); volume depletion, hypovolemic shock
Term
What are the clinical manifestations of post hemorrhagic anemia?
Definition
SNS stimulation; shock; classic signs of anemia; iron deficiency anemia (if chronic)
Term
Describe hemolytic anemia
Definition
premature destruction of RBCs; elevated bilirubin; acquired (infections or traumatic) or hereditary (structural or sickle cell)
Term
What are the clinical manifestations of hemolytic anemia?
Definition
classic signs of anemia, jaundice, splenomegaly
Term
What is the most common form of hemolytic anemia?
Definition
sickle cell
Term
ID test:
tests for autoimmune hemolytic anemia, detects IgG antibodies
Definition
direct coombs test
Term
ID test:
used in prenatal testing and in blood prior to transfusion, detects antibodies against RBCs that are unbound in plasma; agglutination is positive
Definition
indirect coombs
Term
What does the haptoglobin assay screen for?
Definition
hemolytic anemia; causes an increase in free hemoglobin which causes a decline in haptoglobin (b/c it binds to it)
Term
ID:
test done to check different types of hgb in the blood
Definition
Hgb electrophoresis
Term
ID Hgb type:
normally found in fetuses and newborns; replaced by hgb A shortly after birth
Definition
Hgb F
Term
ID Hgb type:
Most common type of Hgb found in adults
Definition
Hgb A
Term
ID Hgb type:
Normal type of Hgb found in small amounts in adults
Definition
Hgb A2
Term
ID Hgb type:
Present in sickle cell disease
Definition
Hgb S and C
Term
ID Hgb type:
inherited variant of normal adult hgb; most common in asians
Definition
Hgb E
Term
ID Hgb type:
present in sickle cells or thalassemia
Definition
Hgb D
Term
ID Hgb type:
heavy hgb; present in certain types of thalassemia
Definition
Hgb H
Term
ID:
most common anemia in hospitalized patients; associated with chronic infections
Definition
Anemia of chronic disease/inflammation (ACD/ACI)
Term
What are the two myeloproliferative RBC disorders?
Definition
polycythemia and relative polycythemia
Term
Describe relative polycythemia
Definition
result of dehydration; results in relative increases of RBC, Hgb and Hct
Term
What are the symptoms of polycythemia vera?
Definition
dizziness, hypertension, pruritis, dyspnea, tingling
Term
Define hemostasis
Definition
event that results in bleeding cessation
Term
What are the 3 hemostatic components?
Definition
platelets, vascular endothelium, clotting factors
Term
What is another term for platelets?
Definition
thrombocytes
Term
How long do platelets circulate?
Definition
7-10 days
Term
What are the two functions of vascular endothelium?
Definition
control hemostatic mechanisms; cause coagulation to be controlled by anticoagulant substances
Term
What are the three steps in the sequence following vascular damage?
Definition
vasoconstriction/spasm, platelet plug, clotting cascade
Term
Platelet aggregation is ___ dependant
Definition
calcium
Term
What is the result of the coagulation/clotting cascade?
Definition
fibrin that stabilizes the platelet plug; intrinsic or extrinsic pathway
Term
Define FDP
Definition
fibrin degradation products
Term
Describe Adjusted partial thromboplastin time
Definition
aPTT; measures activity of intrinsic and final common pathways; means of 30 seconds; monitors coagulation in those taking heparin
Term
Describe prothrombin time
Definition
measures activity of extrinsic and final common pathways; monitors coagulation time of those takin Coumadin; 12 seconds
Term
Describe international normalized ratio
Definition
INR; 1; monitors coagulation of those taking Coumadin (preferred)
Term
Describe ecchymosis and its two classifications
Definition
red and purple/black/blue skin discoloration r/t extravasation of blood in subcutaneous tissue; purpura, petechiae
Term
Define:
Hemoptysis
Definition
cough up blood from lungs
Term
Define hematemesis
Definition
vomit bright red blood
Term
Define coffee ground emesis
Definition
vomit digested old blood
Term
Define hematechezia
Definition
bright red bloody stools
Term
define melena
Definition
black tarry stools (digested blood)
Term
What are the two magnitudes of quantitative platelet disorders?
Definition
<50k=bleeding potential
<20k= high risk for spontaneous bleeding
Term
What are two causes of quantitative platelet disorders?
Definition
disordered platelet distribution and accelerated platelet destruction (spleen)
Term
Describe qualitative platelet dysfunction
Definition
qualitative alterations of platelet function with normal platelet count
Term
What is a high platelet count?
Definition
>340,000
Term
What is the role of vitamin K in coagulation?
Definition
production of prothrombin
Term
ID:
stationary clot adhering to the vessel wall
Definition
thrombus
Term
ID:
floating clot within the blood
Definition
embolus
Term
Describe Virchow's triad
Definition
factors favoring clot formation; loss of integrity of vessel wall (atherosclerosis), abnormalities of blood flow (sluggish), alterations in blood constituents (thrombocytosis)
Term
What is the effect of heparin on aPTT?
Definition
prolong it to 60-90 seconds (74-105 is preferable)
Term
What is the effect of Coumadin on PT and INR?
Definition
PT 16-18; INR 2-3
Term
What are the 4 types of sickle cell disorders?
Definition
sickle cell anemia, sickle cell trait, sickle cell Hgb C, sickle cell thalassemia
Term
Priapism is what specific type of sickle cell crisis?
Definition
Vasoocclusive
Term
Most sickled cells regain normal shape after ____ and ____
Definition
reoxygenation and rehydration
Term
What are 5 sickling stimuli?
Definition
hypoxemia, deoxygenatino, acidosis, hypertonicity, hypothermia
Term
How does acidosis promote sickling?
Definition
decreases Hgb affinity for O2
Term
What are the 4 types of sickle cell crisis?
Definition
vasoocclusive, aplastic, sequestrian, hyperhemolytic
Term
What is the RBC lifespan in sickle cell anemia?
Definition
10-20 days
Term
If the WBC is normal ____ the differential
Definition
ignore
Term
What is the difference between blasts and bands?
Definition
bands (teenagers); blasts (NEVER normal to be in blood stream)
Term
Define leukocytosis
Definition
when leukocyte count is more than normal (>10k)
Term
Describe the shift in neutrophils during a bacterial infection
Definition
shift to the right; mature neutrophils
Term
If the need for neutrophils increases beyond the supply ____ are released into the blood
Definition
banded neutrophils (immature); causes shift to the left
Term
When the neutrophil population returns to normal from a change there is a shift to the ____
Definition
right
Term
Eosinophilia is increased in what two situations?
Definition
allergic disorders and parasitic invasions
Term
What is the purpose of basophilia?
Definition
response to inflammation hypersensitivity reactions
Term
Monocytosis often indicates what?
Definition
chronic infectious disease; in later stages of infections when neutrophils are depleted
Term
Lyphmocytosis is a response to what?
Definition
viral infections
Term
Describe leukopenia
Definition
when WBC count is <5k; caused by bone marrow disease, drugs or viruses
Term
What is the ANC and how is it calculated?
Definition
absolute neutrophil count;
WBC x (%polys + %Bands)
<500-1k = immunodeficient
Term
Describe ALC and how it is calculated
Definition
absolute leukocyte count; WBC x (%T-helper); <500 is immunodeficient
Term
Increased polys= ____ infection
Definition
bacterial
Term
How will knowing what WBC is low help diagnose the pt?
Definition
It doesn't; it indicates vulnerability only
Term
What is the purpose of the white pulp of the spleen?
Definition
filters and cleans
Term
What is the largest lymphoid organ?
Definition
spleen
Term
Describe the MPS
Definition
mononuclear phagocyte system; ingest and destroy microorgs and foreign material; spleen, liver, lungs, etc
Term
What are the clinical manifestations of mono?
Definition
infect B lymphocytes; lymphadenopathy, splenomegaly, fever, sore throat
Term
increased spleen function is associated with what?
Definition
pancytopenia
Term
Describe polycythemia vera
Definition
neoplastic disorder of abnormal growth of myeloid stem cells, self-destructive expansion of red cell mass; normal erythropoietin levels; increased WBCs and platelets; cause clots that may lead to ischemia
Term
What are the clinical manifestations of polycythemia vera?
Definition
plethora, engorgement of retinal and cerebral vessels, angina, hepatosplenomegaly
Term
Describe secondary polycythemia
Definition
physiologic response to hypoxia r/t secretion of erythropoietin; may not require treatment
Term
ID hemophilia type:
classic, factor 8 deficiency
Definition
A
Term
ID hemophilia type:
christmas disease, factor 9 deficiency
Definition
B
Term
ID hemophilia type:
Factor 11 deficiency, autosomal recessive
Definition
C
Term
ID hemophilia type:
factor 8 deficiency; autosomal dominant
Definition
Von Willebrand disease
Term
Describe hemophilia
Definition
congenital; easy bruising; bleeding in various areas of the body
Term
What is a form of treatment for hemophilia?
Definition
FFP (fresh frozen plasma administration); trauma avoidance
Term
Describe DIC
Definition
disseminated intravascular coagulation; acquired coagulopathy where clotting and hemorrhage occur in vascular system; NEVER the primary condition
Term
What are the effects of DIC?
Definition
vascular occlusion; ischemia
Term
Describe the abnormal coagulation profile of DIC
Definition
thrombocytopenia, decreased clotting factors, increased clotting measurements, increased FDPs (d-dimer)
Term
Mood is to ____ as _____ is to weather
Definition
affect; climate
Term
ID bipolar term:
mixed state; agitated depression
Definition
dysphoric
Term
ID bipolar term:
more than 4 episodes a year
Definition
rapid-cycling
Term
What is the 6th leading cause of disability in the middle age group?
Definition
bipolar disorder
Term
high levels of ___ are related to mania
Definition
norepinephrine
Term
___ serotonin leads to ___ epinephrine
Definition
low; high
Term
What platelet factor stimulates coagulation cascades?
Definition
3
Term
What platelet factor is heparin neutralizing and promotes clot formation?
Definition
4
Term
Describe ITP
Definition
Immune thrombocytopenic purpura; IgG coats platelets that are removed from circulation; progress from petechial to purpura to major hemorrhage
Term
Describe TTP
Definition
thrombotic thrombocytopenic purpura; platelets aggregate, form microthrombi and cause occlusion of arterioles and capillaries
Term
What are the 3 systemic manifestations of inflammation?
Definition
fever, leukocytosis, increased plasma protein synthesis
Term
Describe the two components of increased plasma protein synthesis
Definition
acute phase reactants (c-reactive protein) and increased erythrocyte sedimentation rate (ESR)
Term
Describe the immune response
Definition
slow and specific response involving B (humoral) and T (cell mediated) lymphocytes
Term
What aspect of the immune response is responsible for distinguishing between self and non self?
Definition
antigens
Term
What is the immune response?
Definition
the body's response to antigenic challenges
Term
Describe B lymphocytes
Definition
produce antibodies against specific antigens; create memory cells
Term
Describe T lymphocytes
Definition
attack antigen directly; specific; memory cells
Term
What two qualities are unique to immunity?
Definition
memory and specificity
Term
B lymphocytes mature to be what?
Definition
plasma cells
Term
What are the two types of antibody function and how is it measured?
Definition
direct (neutralization, agglutination, precipitation), indirect (opsonizatino); antibody titer
Term
ID Immunoglobulin:
found predominantly in body secretions; secretory immune system
Definition
IgA
Term
In the secretory immune system, where are the antibodies located?
Definition
tears, sweat, saliva, mucous and breast milk
Term
Describe IgM
Definition
largest immunoglobulin; first antibody produced during primary response to an antigen
Term
Which immunoglobulin is of the most abundant glass (80-85%)?
Definition
IgG (Gamma globulin)
Term
In the primary response what is created after 5-7 days?
Definition
IgM antibody
Term
Describe primary response
Definition
initial exposure
Term
Describe the secondary immune response
Definition
more rapid due to memory cells; larger amounts of antibody are produced; large amounts of IgG
Term
What is used to measure the amount of antibodies present at any one point?
Definition
titer
Term
Which immunoglobulin mediates allergic responses and defends against parasites?
Definition
IgE
Term
We know the least about which immunoglobulin?
Definition
IgD; B cell antigen receptor
Term
Describe the two aspects of acquired immunity
Definition
active (produced by host after antigen exposure; natural; immunization with biological material); passive (does not involve immune response, temporary, maternal antibodies, immunizations with preformed antibodies)
Term
What are the 3 types of hypersensitivity in an immune response?
Definition
allergy, autoimmunity and alloimmunity (isoimmunity)
Term
ID Hypersensitivity:
exaggerated immune response to nonself
Definition
allergy
Term
ID Hypersensitivity:
Misdirected immune response against self
Definition
autoimmunity
Term
ID Hypersensitivity:
normal reaction against beneficial foreign tissue
Definition
alloimmunity (isoimmunity)
Term
Define and give examples of haptens
Definition
antigens reacting with skin self-proteins; metals, chemicals, resins
Term
What are 3 possible triggers for autoimmunity?
Definition
drugs, virus (encephalitis), unknown (Lupis)
Term
ID autoimmunity mechanism:
body recognizes self-antigens as foreign
Definition
breakdown tolerance
Term
ID autoimmunity mechanism:
self antigens not normally seen by the immune system
Definition
sequestered antigen
Term
ID autoimmunity mechanism:
molecular mimicry
Definition
infectious disease
Term
ID autoimmunity mechanism:
haptens become immunogenic when they bind to host proteins
Definition
neoantigen
Term
ID autoimmunity mechanism:
during differentiation lymphocytes produce receptor that react with self-antigens
Definition
forbidden clone
Term
ID autoimmunity mechanism:
defects in regulatory cells
Definition
ineffective peripheral tolerance
Term
Transplant rejection is what type of immunity?
Definition
alloimmunity
Term
What are the 3 possible responses after re-exposure to antigen?
Definition
immediate (minutes), delayed (hours), anaphylaxis (rapid and severe immediate)
Term
ID hypersensitivity immune mechanism type:
IgE mediated; most common allergic reactions; histamine release; generic predisposition
Definition
type 1
Term
manifestations of type 1 hypersensitivity are mediated by what?
Definition
inflammatory response
Term
ID hypersensitivity type:
tissue specific, antibody mediated, receptor blockage causing target cell malfunction
Definition
type 2
Term
What are 4 examples of type 2 hypersensitivity?
Definition
immune thrombocytopenia purpura (ITP), hemolytic anemia, graves disease (autoimmune hyperthyroidism), myasthenia gravis
Term
ID hypersensitivity type:
immune complex mediated, antigen-antibody complexes are formed in one place and deposited elsewhere (
Definition
type 3
Term
What is an example of type 3 hypersensitivity?
Definition
SLE (lupis; kidneys, blood vessels and joints are most at risk
Term
ID hypersensitivity type:
does not involve antibodies directly; cytoxic t lymphocytes; direct killing
Definition
type 4 hypersensitivity
Term
What are two examples of type 4 hypersensitivity?
Definition
transplant rejection, contact allergic reactions, contact dermatitis
Term
Describe asthma
Definition
type 1 hypersensitivity; inflammatory disease of airways; exaggerated immune response to exogenous antigens
Term
Describe ITP
Definition
classic type 2 hypersensitivity; platelets are coated with autoantibodies to platelet membrane antigens; splenic sequestration and phagocytosis of mononuclear macrophages; decreased platelet count
Term
Describe autoantibody stimulation in ITP
Definition
surface of platelets become immunogenic, stimulating production of platelet autoantibodies; stimulus is unknown
Term
What is the role of the spleen in ITP?
Definition
site of autoantibody production (white pulp) and phagocytosis of autoantibody coated platelets (red pulp)
Term
What are the two treatments of ITP?
Definition
corticosteroids and splenectomy (if meds don't work)
Term
ID disorder:
deposition of circulating immune complexes with antibodies against host DNA; classic type 3 hypersensitivity; diver deposition
Definition
SLE(systemic lupus erythematous)
Term
What constitutes a diagnosis of SLE?
Definition
serial or simultaneous presence of 4/11 common findings of the disease
Term
What is another name for the butterfly rash?
Definition
malar rash
Term
What is the mnemonic for the 11 criteria of SLE?
Definition
(SOAP, BRAIN, MD)
Serositis
Oral ulcers
Arthritis
Photosensitity

Blood changes
renal involvement
ANA
Immunological changes
Neurological signs

Malar rash
Discoid rash
Term
Describe the discoid rash
Definition
coin shaped on areas of skin exposed to sunlight; red, raised scaley lesions; painless and do not itch
Term
Define serositis
Definition
inflammation of serious tissues (pleura, pericardium, peritoneum); seen in SLE, crohn's disease, and chronic renal failure)
Term
What does ANA stand for?
Definition
antinuclear antibody
Term
What are the 3 types of reactions to graft rejection?
Definition
hyperacute (immediate, rare, pre-existing antibodies); acute (weeks after transplant, cell mediated, managed by immunosuppressive drugs); chronic (slow progressive organ failure)
Term
What are the clinical manifestations and treatment for graft rejection?
Definition
signs of failure of transplanted tissue; immunosuppression and antirejection meds (for life)
Term
Describe GVH
Definition
Graft vs. host disease; bone marrow transplant complication
Term
ID and describe the two types of immune deficiencies
Definition
Congenital (T or B cells deficient; primary); acquired (secondary; caused by another illness [cancer])
Term
What are the classic clinical representations of immune deficiencies?
Definition
opportunistic infections (PCP, CMV, MAI, fungus and yeasts)
Term
Describe siderophoers
Definition
bacteria that must have iron to multiply
Term
What are the two main types of bacteria?
Definition
gram positive and gram negative
Term
What are 3 characteristics of bacteria?
Definition
capsules, toxins and enzymes
Term
Describe gram staining
Definition
based on chemical and physical properties of bacterial cell walls; 1st step in bacteria ID; often takes <1 hr
Term
Describe endotoxin
Definition
from lysed gram negative bacteria; activates inflammatory response
Term
Bacterial protein toxins are strongly ___
Definition
antigenic
Term
Endotoxins refers to the ____ complex associated with outer membrane of gram-negative pathogens
Definition
lipopolysacaccharide
Term
Endotoxins have strongly ___ effects
Definition
pyrogenic
Term
LPs acts as the ___ ____ which promotes secretion of pro-inflammatory cytokines
Definition
prototypical endotoxin
Term
Viruses are ___ ____
Definition
intracellular parasites
Term
A disease caused by fungi is called what?
Definition
mycoses
Term
What is a sign of a dermophyte fungal infection?
Definition
inflammation
Term
What are the 3 countermeasures against pathogen defenses?
Definition
innate, vaccines, antimicrobials
Term
Describe bacterial culture sensitivity
Definition
When an organism has been cultured and is subjected to various antibiotics to determine sensitivity or resistance
Term
Describe early hyperdynamic septic shock
Definition
warm flushed skin, fever
Term
Describe late hypodynamic septic shock
Definition
typical shock manifestations of tachycardia and cold clammy skin; hypotension
Term
What types of mutations occur in the cancer cell?
Definition
signal from cell surface receptor is in on position; mutation in ras intracellular signaling protein; activation of protein kinases; inactivation of tumor suppressor genes (p53)
Term
Describe Ras signaling
Definition
causes cell growth and differentiation; mutation can cause inappropriate transmission signals inside a cell
Term
What allows cancer cells to divide indefinitely?
Definition
telomerase gene is turned on producing an enzyme that rebuilds telomeres so instead of division stopping when the telomeres are gone it can continue
Term
What is the benefit of the G0 phrase?
Definition
helps us understand cancer treatment protocols with rounds of treatment
Term
What are the 6 characteristics of malignant cells?
Definition
autonomy, anaplasia (loss of differentiation), transformation (normal cell becomes cancerous), progress, hyperplasia, dysplasia (variation of cell shape and size)
Term
How are cancer cells able to migrate to other areas of the body?
Definition
Low levels of fibronectin
Term
Define angiogenesis
Definition
ability to create a blood supply
Term
What substance do bacteria use to get their nutrition?
Definition
iron
Term
What is the result of cancer cells that produce plasminogen activating factor?
Definition
production of fibrin that degrades extracellular tissue during tumor invasion
Term
ID cancer type from the affected area:
epithelial tissue
Definition
carcinoma
Term
ID cancer type from the affected area:
CT
Definition
sarcoma
Term
ID cancer type from the affected area:
glandular
Definition
adenoma
Term
ID cancer type from the affected area:
CNS tissue
Definition
glioma
Term
ID cancer type from the affected area:
lymphatic tissue
Definition
lymphoma
Term
ID cancer type from the affected area:
bone marrow
Definition
leukemia
Term
Describe the aspects of the TNM system
Definition
Tumore, Node, Metastasis
Term
ID cancer stage:
cancer is confined to organ of origin
Definition
stage 1
Term
ID cancer stage:
locally invasive
Definition
2
Term
ID cancer stage:
regional structures
Definition
3
Term
ID cancer stage:
distant sites
Definition
4
Term
What are the two theories regarding carcinogenesis?
Definition
monoclonal (single mutated cell is great grandfather of tumor); cell accidents (several cell accidents occur resulting in tumor development)
Term
Describe xenobiotics
Definition
chemical found in an organism that is not expected to be there;
Term
Describe the tumor immune surveillance theory of carcinogenesis
Definition
the immune system can recognize tumor cells and kill them
Term
What are the two important steps of metastasis?
Definition
penetration into lyphatics, blood vessels or body cavities; transport into lymph or blood
Term
What are the 4 common sites of distant mesastasis?
Definition
lungs, liver, bones and brain
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