Check your understanding week 1
Your patient is scheduled for a staging procedure. She wants to know what that means. The correct response is which of the following?
It is a procedure for determining the extent of tumor spread.
The cellular response indicative of injury because of faulty metabolism is
intracellular accumulations.
The cellular component that is most susceptible to radiation injury is the
DNA.
Proto-oncogenes
are normal cellular genes that promote growth.
Malignant neoplasms of epithelial origin are known as
carcinomas.
After surgery to remove a lung tumor, your patient is scheduled for chemotherapy, which will
kill rapidly dividing cells.
The hypermetabolic state leading to cachexia in terminal cancer is thought to be because of
tumor necrosis factor.
TRUE/FAlSE
In general, a cancer cell that is more tissue-specific differentiated is more likely to be aggressive.
False
The cellular change that is considered preneoplastic is
dysplasia.
The most common tumor-suppressor gene defect identified in cancer cells is
P53.
Necrotic death of brain tissue usually produces _____ necrosis.
liquefactive
Carbon monoxide injures cells by
reducing oxygen level on hemoglobin.
Familial retinoblastoma involves the transmission of what from parent to offspring?
Mutant tumor-suppressor gene
Your patient eats “lots of fat,” leads a “stressful” life, and has smoked “about two packs a day for the last 40 years.” Her chronic morning cough recently worsened, and she was diagnosed with a lung mass. The most likely contributing factor for development of lung cancer in this patient is
cigarette smoking.
Paraneoplastic syndromes in cancer involve excessive production of substances by multiple means. A common substance found in excessive amounts resulting from cancer paraneoplastic syndromes is
calcium.
Cancer grading is based on
cell differentiation.
Retroviruses are associated with human cancers, including
Burkitt lymphoma.
Metaplasia is
the replacement of one differentiated cell type with another.
Breast cancer in women who have the breast cancer gene
occurs at an earlier age.
The primary effect of aging on all body systems is
decreased functional reserve.
Coagulative necrosis is caused by
interrupted blood supply.
After suffering a heart attack, a middle-aged man is counseled to take a cholesterol-lowering medication. This is an example of
tertiary prevention.
An obese but otherwise healthy teen is given a prescription for a low-calorie diet and exercise program. This is an example of
secondary prevention.
A patient with high blood pressure who is otherwise healthy is counseled to restrict sodium intake. This is an example of
secondary prevention.
The effect of stress on the immune system
may involve enhancement or impairment the immune system.
The stage during which the patient functions normally, although the disease processes are well established, is referred to as
subclinical.
In general, with aging, organ size and function
decrease.
A patient has been exposed to meningococcal meningitis, but is not yet demonstrating signs of this disease. This stage of illness is called the _____ stage
latent
A disease that is native to a particular region is called
endemic.
Which is not normally secreted in response to stress?
norepinephrine
cortisol
epinephrine
insulin
Insulin
Extreme cold injures cells by all the following except
ischemic injury from vasoconstriction
peripheral nerve damage from rebound vasodilation
decreased blood viscosity
crystallization of cellular components
decreased blood viscosity.
All these cellular responses are potentially reversible except
metaplasia
atrophy
hyperplasia
necrosis
necrosis.
TRUE/FALSE
When the cause is unknown, a condition is said to be idiopathic
True
Somatic death refers to death
of the entire organism.
Many of the responses to stress are attributed to activation of the sympathetic nervous system and are mediated by
norepinephrine.
TRUE/FALSE
The nurse is swabbing a patient’s throat to test for streptococcal pharyngitis. The nurse must understand that tests such as this differ in the probability that they will be positive for a condition when applied to a person with the condition; this probability is termed sensitivity.
True
Apoptosis is a process that results in cellular
death.
Selye’s three phases of the stress response include all the following except
allostasis
resistance
alarm
exhaustion
allostasis.
A 17-year-old college-bound student receives a vaccine against an organism that causes meningitis. This is an example of
primary prevention.
Reperfusion injury to cells
involves formation of free radicals.
What is the study of causes or reasons for phenomena that identifies a causal factor that, acting in concert, provokes a particular disease?
Etiology
Etiology classification that means unknown
idiopathic
Etiology classification that mean unintended/unwanted that can be caused from unintended/unwanted medical treatment.
Iatrogenic
A ________ _________ is a factor that when present increases the likelihood of disease.
Risk Factor
A clinical manifestation that is an objective or observed manifestation of disease.
sign
A clinical manifestation that is based on subjective feeling of abnormality in the body.
Symptom
A clinical manifestation that represents the etiology of signs and symptoms that have not yet been determined
Syndrome
Time between exposure of tissue to injurious agent and 1st appearance of signs and/or symptoms.
Latent period
Refers to a period during an illness when signs/symptoms temporarily become mild, silent or disappear.
Latent period
Time during which 1st sign and symptoms appear indicating onset of disease
prodromal period
Patient functions normally, and the disease processes are well established
subclinical
May last months-years sometimes following an acute course
chronic clinical course
A sudden increase in the severity of disease or signs/symptoms (MS, Sickle cell disease)
exacerbation
Decrease in severity, sign, or symptoms: may indicate disease is cured
remission
stage of recovery after a disease injury, or surgical procedure
convalescence
Probablitly that the test will be negative when applied to a person without a particular condition
specificity
Probability that a test will be positive when applied to a person with a particular condition
sensitivity
native to a local region
endemic
spread to many people at the same time
epidemic
spread to large geographic areas
pandemic
Ability to successfully adapt to challanges
allostasis
What are the three stages of Selyes GAS- general adaptation syndrome
Alarm
Resistance/Adaptation
Exhaustion
What stage is GAS (selyes)
the point where the body can no longer return to homeostasis
exhaustion
What stage in GAS (selyes)
fight-or-flight response due to stressful stimulus
Alarm
What stage in GAS (selyes)
activity of the nervous and endocrine system in returning the body to homeostasis
resistance, adaptation
"cost" of the body's organs and tissues for an ineffectively regulated allostatic response. (part of the exhaustion stage of selyes)
allostatic overloas
In alarm, which one releases epinephrine and norepinephrine- short-term or long-term response?
short term
In alarm, which one releases cortisol - short-term or long-term response?
long term
Norepinephrine:
Constricts blood vessels and raises bp. What receptor is used- alpha or beta 2?
alpha receptor
Epinephrine:
Enhances myocardial contractility, increase HR and increases CO- alpha or beta 2?
beta 2 receptor
What is the primary glucocorticoid steroid that has anti-inflammation effects, promotes appetite, and affects protein metabolism?
cortisol/steroid
Promotes reabsorption of sodium and water. Increases BP.
Aldosterone
Affect stress responses, influencing allostasis.
Ex: estrogen, testosterone
sex hormones
In ischemia: Cellular events lead to __________ ____________.
Lactic acidosis
Can increase during stress to enhance immune function
Growth hormone
Results from malfunction of sodium-potassium pump with an accumulation of sodium ions within the cell.
Hyropic swelling
Cells shrink and reduce their differentiated functions in response to normal and injurious factors
Causes: disuse, denervation, ischemia, nutrient starvation, persistent cell injury
Atrophy
Increase in cell mass accompanied by an augmented functional capacity in response to physiologic and pathophysiologic demands
Causes: Increased cellular protein content
Hypertrophy
Increase in functional capacity related to an increase in cell number due to mitotic division.
Causes: increased physiological demands or hormonal stimulations
hyperplasia
Replacement of one differentiated cell with another
(fully reversible)
Metaplasia
Disorganized appearance of cells because of abnormal variation in size, shape, and arrangement. Preneoplastic lessons.
Dysplasia
What type of Necosis:
Most common type, process that begins with ischemia and ends with degradation of plasma membrane (heart muscle)
coagulative necrosis
What type of Necosis:
Occurs with dissolution of dead cells (brain)
Formation of abscess or cysts from dissolved dead tissue
Liquefactive necrosis
What type of Necosis:
Death of adipose tissue
usually the result of trauma or prancreatits
Fat necrosis
What type of Necosis:
Characteristic of lung damage secondary to TB
resembles cheese
Caseous necrosis
What type of gangrene
form of coagulative necrosis characterized by blackened, dry, wrinkled tissue separated by a line of demarcation from healthy tissue
dry gangrene
What type of gangrene
-Could also involve with bacterial infection
for of liquefactive necrosis, can be fatal and typical found in internal organs
wet gangrene
What type of gangrene
CDIFF
gas gangrene
Does apoptosis cause inflammation
no
Do all benign tumors end with the suffix -oma?
no
Malignant tumor that is of epithelial orgin
carcinoma
Malignant tumor that is of mesenchymal orgin
Sarcoma
Malignant tumor of white blood cells
leukemia
What are proto-oncogene in its mutant overactive form
oncogene
What are the following?
-HIV -Kaposi's sarcoma
-Epstein-Bar Virus- Burkitt lymphoma
-Human T-lymphocyte virus type 1- Adult T-cell leukemia
-Hepatitis C
Retroviruses
Causes loss of function. Stops cell cycle for repariment
Tumor-Suppressor Gene
What type of Gene?
Normally "master brake" for cell cycle
normally blocks/stops cell division
Binds to transcription factors
Rb Gene
What type of Gene?
Associated with breast cancer
BRCA1 & BRCA 2
Process by which cancer cells escape their tissue of origin and initiate new colonies of cancer in distant sites through the circulatory or lymphatic systems
metastasis
What contributes to anemia, leukopenia and thrombocytopenia?
Bone marrow supressio