Pathology Exam 3 Flashcards

(76 cards)

1
Q

A circulatory disturbance

A disease in which a person has excess amounts of tissue fluid present in the body

A

Edema (Dropsy)

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2
Q

substance which bathes and surrounds the body cells.

A

Tissue fluids

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3
Q

causes of edema

A

a. Increased permeability of the capillaries. The capillaries are allowing too much fluid in and not enough out. The cells are swelling.
b. Increased capillary pressure due to venous obstruction or heart failure.
c. Inflammatory conditions - due to injury.
d. Fluid / electrolyte problems – post surgical problems

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4
Q

Examples of edema

A
Anasarca 
Ascites
Hydrothorax 
Hydropericardium 
Hydrocele 
Hydro-cephalus
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5
Q

Type of edema

generalized edema – edema scattered throughout the entire body

A

Anasarca

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6
Q

Type of edema

excess tissue fluid in the abdominal cavity or peritoneal cavity.

A

Ascites

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7
Q

Type of edema

excess tissue fluid in the thoracic or plural cavity.

A

Hydrothorax

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8
Q

Type of edema

excess tissue fluid in the sack that surrounds the heart.

A

Hydropericardium

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9
Q

Type of edema

excess fluid or edema of a sacculated cavity. Affects the scrotum in males

A

Hydrocele

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10
Q

Type of edema
excess fluid in the cranial cavity - water on the brain. Affects the nervous system. Most commonly reported more in children than adults.

A

Hydro-cephalus

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11
Q

A circulatory disturbance

excess blood in a body part or organ

A

Hyperemia (congestion)

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12
Q

types of hyperemia

A

Physiological hyperemia
Pathological hyperemia
Active hyperemia
Passive hyperemia

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13
Q

types of hyperemia

e.g., blushing - excess blood in a body part or organ due to increased functional demand.

A

Physiological hyperemia

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14
Q

types of hyperemia

e.g., cyanosis - excess blood in a body part or organ due to disease

A

Pathological hyperemia

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15
Q

types of hyperemia

excess blood in a body part or organ brought there by the arteries

A

Active hyperemia

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16
Q

types of hyperemia
excess blood in a body part or organ due to venous obstruction, an obstruction which is present in the veins. Passive hyperemia is always pathologic.

A

Passive hyperemia

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17
Q

reddish blue discoloration seen in the tissues due to lack of oxygen

A

Cyanosis

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18
Q

a circulatory disturbance

a reduction in the arterial blood supply to a body part or organ

A

Ischemia

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19
Q

the most common cause of ischemia is?

A

the presence of an attached blood clot present in an artery.

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20
Q

if left untreated, what is the effect of ischemia?

A

death - infarction (death of tissue due to interference of blood supply).

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21
Q

a circulatory disturbance

the process by which there is the presence of an attached blood clot during life.

A

Thrombosis

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22
Q

single blood clot

A

Thrombus

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23
Q

two or more blood clots

A

Thrombi

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24
Q

causes of thrombosis (4)

A

a. Injuries to blood vessels.
b. Slower or reduced rate of blood flow.
c. Alterations in blood composition.
d. Blood diseases - becoming thin from within such as leukemia.

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25
locations of thrombi
a. Veins b. Arteries c. chambers of the heart
26
the most common site for thrombi
veins
27
thrombi in the lower extremities would cause
DVT | deep vein thrombosis
28
the least common site for thrombi
chambers of the heart
29
the chambers of the heart is the least common site for thrombi. Why?
they were shipped to the heart from another part of the body
30
when a thrombi changes location it becomes?
mural
31
a thrombi becoming mural (or changing location) is the greatest risk because?
the attached blood clot has become infected, and once it becomes infected, it will spread
32
consequences of thrombi depend on what?
where it is located
33
a consequence of thrombosis | thrombosis present in the artery – causes reduction in arterial blood supply. Restricts blood flow
ischemia
34
the most common consequence of thrombosis. Present in the vein.
Passive hyperemia
35
a consequence of thrombosis | death of the tissue caused by interference in blood supply - ischemic necrosis + putrefaction
gangrene
36
a circulatory disturbance | the process by which there is a free floating object in the blood stream during life.
Embolism
37
a single free floating object in the blood during life
embolus
38
one or more objects in the blood during life
emboli
39
types of embolism
a. Fragments of thrombi b. Bacteria c. Tumors d. Animal parasites e. Fat f. Gas g. Foreign bodies
40
types of embolism | a clot that detaches or breaks off. The most common type of an embolism.
Fragments of thrombi
41
types of embolism | present in the blood stream during life. Blood poisoning
Bacteria
42
types of embolism swelling; an abnormal growth. Malignant or non-malignant. Begins as free floating in the blood stream. Spread by the blood or lymph system.
Tumors
43
types of embolism | free floating in the blood stream.
Animal parasites
44
types of embolism | fat cells free floating in the blood stream.
Fat
45
types of embolism | air free floating in the blood stream.
gas
46
types of embolism | small pieces of glass or metal free floating in the blood stream.
Foreign bodies
47
Consequences of embolism
a. Ischemia - reduction in arterial blood supply. b. Infarction - localized area of dead tissue caused by interference of blood supply. c. Spread of infection or neoplasm (new growth). d. Necrosis - dead tissue, i.e. heart.
48
a circulatory disturbance loss of blood from the vascular system. A human can lose no more than half (1/2) without irreversible damage or death.
hemorrhage
49
Methods of hemorrhage
Rhexis or Diapedesis
50
loss of blood by rupture of a blood vessel. Rupture of one of the chambers of the heart
rhexis
51
loss of blood by squeezing through the pores of the capillaries
Diapedesis
52
Causes of hemorrhage
a. Trauma - wound or injury b. Vascular diseases of the blood vessels c. Hypertension - high blood pressure d. Blood diseases - plethora - excess amount of circulating blood
53
``` Related terms (3) Size of the hemorrhage ```
Petechia Echymosis Hematoma
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pinpoint hemorrhages;, smallest of the hemorrhages in terms of size; commonly seen in cancer patients (think of petite)
Petechia
55
medium sized hemorrhage (bruise or black and blue spot). Most famous sites- long term IV or a shiner (black eye)
Echymosis
56
a tumor like mass of lost blood. Largest of the hemorrhages in terms of size (Pool of blood such as a gun shot wound). (hema-huge-largest)
Hematoma
57
Location of the hemorrhage (10)
``` Epistaxis Hemoptysis Hematemesis Melena Hemothorax Hemoperitoneum Hematuria Exsanguination Hemopericardium Hemophilia ```
58
Location of the hemorrhage | nose bleed, blood coming from the nasal cavity
Epistaxis
59
Location of the hemorrhage | blood brought up in sputum from the respiratory tract. (Emphysema)
Hemoptysis
60
Location of the hemorrhage | vomiting of blood. Blood in the vomit from the digestive tract.
Hematemesis
61
Location of the hemorrhage the presence of blood in feces (the stool.) Intestinal tract, the stool color changes from brown to black. (Colon cancer, diverticulitis)
Melena
62
Location of the hemorrhage | the presence of blood in the thoracic cavity or plural cavity.
Hemothorax
63
Location of the hemorrhage | the presence of blood in the peritoneal cavity or abdominal cavity.
Hemoperitoneum
64
Location of the hemorrhage | the presence of blood in the urine or urinary tract, urinary tract infection.
Hematuria
65
Location of the hemorrhage massive loss of blood which usually results in death or irreversible damage. The body cannot loose more than 1/2 of the blood volume, without death or irreversible damage
Exsanguination
66
Location of the hemorrhage | excess blood in the sack surrounding the heart.
Hemopericardium
67
Location of the hemorrhage an affinity for blood. The bleeder’s disease. A heredity disease only found in males characterized by the absence or a deficiency of an essential clotting factor, factor 8.
Hemophilia
68
Postmortem conditions in regards to circulatory disturbances
1. Diminished circulation 2. Abscesses 3. Hemorrhages 4. Emaciation/ Dehydration 5. Rapid decomposition 6. Discoloration Intravascular and/or extravascular.
69
diminished circulation postmortem is due to
the hardening of the arteries
70
a postmortem circulatory disturbance | localized collection of pus
abscess
71
occurring postmortem | massive loss of blood can cause generalized circulatory shock.
hemorrhages
72
the wasting away or loss of tissue
emaciation
73
loss of moisture from the body.
dehydration
74
postmortem hypostasis which causes livor mortis (reddish blue discoloration) which is an intravascular blood discoloration. Can be usually removed by embalming.
******
75
blood discoloration after death outside the intravascular system. This is a cosmetic problem.
extravascular
76
National board question: What is considered the most permanent blood discoloration?
Post mortem extravascular (post mortem stain)