LESSON 5 Flashcards
is a protozoal infection that involves the colon, but may spread to soft tissues, most commonly to the liver or lungs by lymphatic dissemination
amoebasis
etiologic agent of amoebiasis
entamoeba histolytica
blood vessels that send blood and oxygen to the intestine
mesenteric veins
2 developmental stages of entamoeba histolytica
trophozoite/vegatative form
cyst
facultative parasites that may invade the tissue or may be found in parasitized tissues and liquid colonic contents
trophozoite/ vegetative form
passed out with the form of semi-formed stools and is resistant to environmental conditions
cyst
considered as the infective stage in the life cycle of e. histolytica
cyst
average incubation period of amoebiasis
3-4 weeks
a test to detect the presence of blood in the stool
guaiac test
is an internal examination of the lower large bowel
proctosigmoidoscopy
instrument used in proctosigmoidoscopy
sigmoidoscope
a procedure used to see inside the sigmoid colon and rectum
sigmoidoscopy
the s-shaped last part of the large intestine, leading into the rectum
sigmoid colon
caused by the bacillus anthracis
anthrax
etiologic agent of anthrax
bacillus anthracis
-a large aerobic, spore forming, gram +, rod shaped microorganisms that is capsulated and non-motile
-this organisms grows in chains
anthrax
bacillus anthracis
humans are more resistant to anthrax than herbivorous animals
eurt
human cases are classified as
agricultural cases
industrial cases
result from contact w/ animals that are infected from bites of contaminated or infected flies, and from consumption of contaminated meat
agricultural cases
associated w/ exposure to contaminated hides, goat hair, wool, or bones
industrial cases
incubation period of cutaneous anthrax
9 hrs to 2 weeks
types of anthrax
cutaneous anthrax
inhalation anthrax (wool sorter’s dx)
gastrointestinal anthrax
symptoms resemble those of severe viral respiratory diseases
inhalation anthrax
results from the ingestion of inadequately cooked meat from animals with anthrax
gastrointestinal anthrax
the intense inflammation of the meninges of the brain and the spinal cord
anthrax meningitis
marked by elevated CSF pressure w/bloody CSF, followed by rapid loss consciousness and death
anthrax meningitis
develops after lymphohematogenous spread of B. anthracis from primary lesion
anthrax sepsis
spread by lymph vessels and blood vessels
lymphohematogenous
