Shared Flashcard Set

Details

Patho Week 1
Cell injury
67
Nursing
Undergraduate 3
02/09/2014

Additional Nursing Flashcards

 


 

Cards

Term
Define: Pathophysiology
Definition
The study of abnormalities in physiologic functioning of living beings
Term
Define: Etiology
Definition
the study of the causes or reasons for phenomena
Term
What are methods of describing etiology?
Definition
Idiopathic- cause is unknown
Iatrogenic- cause is the result of an unintended or unwanted medical tx
Multifactorial- has multiple etiologic factors that contribute to its development
Term
Define: Pathogenesis
Definition
The development or evolution of disease, from initial stimulus to ultimate expression of manifestations of disease
Term
Define: Risk factor
Definition
a factor that when present increases the likelihood of disease
Term
How are risk factors categorized?
Definition
Modifiable or non-modifiable
Term
Define: Triggers
Definition
Promote the onset of clinical manifestations
Term
Define: Signs
Definition
Objective or observed manifestations of disease
Term
Define: Symptoms
Definition
Subjective feeling of abnormality in the body
Term
Define: Syndrome
Definition
A set of signs and symptoms not yet determined to delineate a disease
Term
How are clinical manifestations described?
Definition
Location- local vs systemic
Time- Acute vs chronic
Presence- Remissions vs exacerbations
Term
Describe: diagnosis types
Definition
Medical, nursing, collaborative
Term
Describe: tx types and purpose
Definition
Medical, nursing, collaborative interventions
Eliminate and reduce cause
Eliminate and reduce clinical manifestations
Term
What are contributing factors to human diversity and how?
Definition
• Cultural considerations: each culture defines health
and illness in a manner that reflects their experience
• Age and biologic factors linked: a normal value for a person at one age may not be normal for a person at another age
• Race/ethnic differences: relevant in both health and disease
• Socioeconomic status: lower SES have poorer health
and health outcomes
• Gender differences: relevant in both health and
disease
• Situational differences: determine whether a
derivation from normal should be considered abnormal or an adaptation mechanism
• Time variations: may impact how the body responds from day to night, or at varying times
Term
Describe the levels of prevention
Definition
Primary: [education] altering susceptibility; reducing exposure for susceptible people
Secondary: early detection, screening and management of disease
Tertiary: [tx] rehab, supportive care, reducing disability, and restoring effective functioning following disease
Term
Which of the following is an example of the clinical manifestation known as a sign?
1. Nausea
2. Bruise
3. Headache
4. Loss of appetite
Definition
2. bruise/ A sign is visible to the observing health care provider, whereas symptoms are subjective and must be reported.
Term
An obese adult with type 2 diabetes is given a prescription for a low-calorie diet and exercise program. This is an example of:

primary prevention.
secondary prevention.
tertiary prevention.
disease treatment.
Definition
Tertiary
Term
T or F: Individuals experiencing the same disease process exhibit the same clinical manifestations.
Definition
False: There are vast individual differences in the manifestation of disease. This can be affected by age, gender, and ethnicity as well as the clinical stage and course of the disease.
Term
Which of the following would be a non-modifiable risk factor for heart disease?

Smoking
Obesity
Elevated blood pressure
Family history
Definition
FH: All others are modifiable
Term
T or F: A change in a physiologic variable is more significant than the absolute values.
Definition
True
Term
Describe the body structure.
Definition
Cells-Tissues-Organs-Organ systems
Term
[image]
Definition
Neoplasia
Term
[image]
Definition
Normal Cells
Term
[image]
Definition
Metaplasia
Term
[image]
Definition
Hypertrophy
Term
[image]
Definition
Hyperplasia
Term
[image]
Definition
Dysplasia
Term
[image]
Definition
Atrophy
Term
Describe: Atrophy
Definition
• Decrease in the size of cells due to a decrease in
functional demand
• Results in reduced tissue mass
Term
Describe: Hypertrophy
Definition
Increase in the SIZE of cells due to an increase in functional demand
Results in enlarged tissue mass
Term
Describe: Hyperplasia
Definition
Increase in the NUMBER of cells due to an increase in functional demand and/or increased stress
Results in enlarged tissue mass
Term
Describe: Metaplasia
Definition
Mature cell type is replaced by different mature cell type, typically due to increased stress
Term
Describe: Dysplasia
Definition
Change in cell size, shape, uniformity, arrangement, and/or structure, typically due to increased stress
Term
Define: Anaplasia
Definition
Undifferentiated cells with variable nuclear and cell structures. Can imply more advanced cancer
Term
Define: Neoplasm
Definition
"new growth"- commonly called tumor.
Term
Are anaplasia and neoplasms reversible?
Definition
No
Term
The nurse is examining the results of the bronchoscopy of a patient that has smoked for 20 years. The report shows stratified squamous cells are present instead of columnar ciliated cells. The nurse understands that this represents which type of cellular adaptation?

Hyperplasia
Metaplasia
Dysplasia
Anaplasia
Definition
Metaplasia
Term
A patient returns to the clinic for her Pap smear results, which revealed cervical dysplasia. Which of the following statements if made by the nurse accurately describes the condition?

A.“Some cells in your cervix have increased in size.”
B. “Some cells in your cervix have become immature.”
C. There are anaplastic changes in the nucleus of some of your cells.”
D. “Some of your cervical cells have become cancerous.”
Definition
B. “Some cells in your cervix have become immature.”
Term
Which of the following cellular changes is considered to be preneoplastic?

A. Anaplasia
B. Dysplasia
C. Metaplasia
D. Hyperplasia
Definition
B. Dysplasia

Dysplasia represents an adaptive effort gone astray. There is significant potential to transform into cancerous cells, thus referred to as preneoplastic lesions.
Term
Describe the etiologies of cell injury
Definition
-Ischemia and Hypoxic Injury
-Nutritional Injury
-Chemical Injury
-Physical and mechanical injury
Term
Describe the pathway of cell injury
Definition
[image]
Term
What are the types of reversible cell injury?
Definition

Hydropic swelling- cellular swelling due to accumilation of water

Intracellular accumulations

Term
Describe free radical formation
Definition

An electrically uncharged atom or group of atoms that contain an unpaired electron

Unstable, formed by red/ox process

Causes damage by: -Lipid peroxidation; -Attacks proteins disrupting transport channels

Term
Describe: cell Nerosis
Definition
Irreversible;
Usually occurs as a consequence to ischemia or toxic injury
Four types: coagulative, liquefactive, fat, caseous
Term
Describe: coagulative necrosis
Definition
Most common;
Process that begins with ischemia and ends with degradation of plasma membrane
Term
Describe: liquefactive necrosis
Definition
Occurs with dissolution of dead cells, liquification of lysosomal enzymes, and formation of abcess or cyst from disolved dead tissue
Term
Describe: fat necrosis
Definition
Death of adipose tissue
Usually result of trauma or pancreatitis
Appears as chalky white area of tissue
Term
Describe: Caseous necrosis
Definition
Characteristic of lung damage secondary to TB
Resembles clumpy cheese tissue
Term
Explain: Consequences of necrosis
Definition
Loss of function; Inflammatory response/ fever; Focci of infection; Release of intracellular protein- serum levels used as markers of cell death
Term
Describe: Gangrene
Definition
Irreversible;
Cellular death in a large area of tissue;
Results from interruption of blood supply to a particular part of the body;
Three types: Wet, dry, and gas
Term
Describe: Dry Gangrene
Definition
Form of coagulative necrosis characterized by blackened, dry, wrinkled tissue separated by a line of demarcation from healthy tissue
Term
Describe: Wet gangrene
Definition
Form of liquefactive necrosis typically found in internal organs but also can be seen outwardly
Term
Describe: Gas gangrene
Definition
Results from infection of necrotic tissue by anaerobic bacteria (Clostridium), which is categorized by formation of gas bubble in damaged tissue
Term
Describe: Apoptosis
Definition
Occurs in response to injury that does not directly kill the cell, but triggers intercellular cascades that activate a cellular suicide response
Not always a pathologic process
Does not cause inflamation
Term
Which of the following cellular responses is indicative of injury due to faulty metabolism?

A. Hydropic swelling
B. Lactate production
C. Metaplasia
D. Intracellular accumulations
Definition
D. Intracellular accumulations

Faulty metabolism leads to build up of substances within the cell.
Term
T or F: The type of irreversible cell injury that initiates an inflammatory response is called apoptosis.
Definition
False

Necrosis is this type of cell death, and is far more common in pathology.
Term
A patient’s chest X-ray shows several granulomas that are indicative of caseous necrosis. The patient most likely has:

A. asthma.
B. pneumonia.
C. lung cancer.
D.tuberculosis.
Definition
D. tuberculosis
Term
The nurse is trying to best explain what happens when tissues become necrotic. The nurse is correct in saying that in necrosis, tissues are:

A. multiplying.
B. inflamed.
C. infected.
D. dead.
Definition
D. dead.
Term
When patients have an ischemic event, cellular damage occurs after:

A. increased production of ATP.
B. increased oxygenation.
C. decreased mitochondrial energy production.
D. increased pH.
Definition
C. decreased mitochondrial energy production.
Term
Which of the following is occurring inside of John’s Cells while they are not receiving enough oxygen due to ischemia (Select All that Apply)?

A. increased intracellular potassium.
B. increased intracellular calcium.
C. increased intracellular sodium.
D. increased intracellular magnesium.
Definition
B. increased intracellular calcium.
C. increased intracellular sodium.
Term
Describe: Cardiac Hypertrophy Pathophysiology
Definition
Increased cardiac muscle mass
Etiology: Inherited genetic trait; Excessive cardiac workload; Increased functional demand
Term
Describe: Cardiac hypertrophy clinical manifestations
Definition
Variable: Mild to severe
SOB
Syncope
Impaired cardiac function (altered rate and rhythm)
Term
Describe: Cardiac hypertrophy dx criteria
Definition
Genetic testing
Screening:
H&P- HTN, reduced exercise tolerance, ventricular arrhythmia, heart murmur
Techniques: EKG, echocardiogram, stress tests
Term
Describe: Cardiac hypertrophy tx
Definition
Surgical
Pharmacologic: Drugs that relax ventricles, drugs that reduce workload of the heart
Non-pharmacologic: Activity restriction, diet and exercise
Term
What would make the heart work harder?
Definition
HTN: systemic or pulmonary
Valvular disorders
Vascular disease
Stress
Term
An increase in cardiac size and function due to increased workload is termed:

A. atrophy.
B. hypertrophy.
C. functional demand.
D. inflammation.
Definition
B. hypertrophy.
Term
A public health nurse is providing community education related to risks for cardiac hypertrophy and heart failure. He should be sure to include which of the following? SELECT ALL THAT APPLY.

A. Smoking
B. Exercise
C. Hypertension
D. Asthma
Definition
A. Smoking
C. HTN
Supporting users have an ad free experience!