GI infections Flashcards
(183 cards)
Herpes simple is latent where
Trigeminal ganglia
Herpes simple is latent where
Trigeminal ganglia
Herpes simple is latent where
Trigeminal ganglia
Two viral pharyngitis causes
One bacteria
One parasite
EBV
CMV
Group A strep
Toxoplasmosis
Thrush is described how?
Patient type
White plaques on tongue capable of being scraped off
Immunocompromised
Hand-foot-and mouth disease.
Age
Begins how (3)
Form with painful vesicular lesions in throat
Kids
Mild fever + Sores in mouth + Skin rash
Herpangina
H. pylori
Infection leads to what in stomach
Responsible for most of what two things
Two associated cancers
Increased acid production
Chronic gastritis + peptic ulcer disease
Gastric carcinoma and MALT lymphoma
Three most common causes of enterocolitis
What is most common
Rotavirus
Calciviruses
ETEC
Unknown cause most often
Define diarrhea
Increase in mass, frequency or fluidity as perceived by patient.
Define dysentery
Painful bloody diarrhea
3 bacterial mechanisms of infectious diarrhea
Ingestion of preformed toxins
Enterotoxin
Enteroinvasion and cytotoxicity
Lab assessment of secretory diarrhea finds what?
No blood or leukocytes present
Lab assessment of exudative diarrhea finds what?
Blood and/or leukocytes present
Secretory diarrhea is mainly concerned with what mechanism?
Enterotoxin production
Rotavirus What age Cells infected Resulting loss Title Seasonality Primary symptom lasts how long How to test Vaccine
Children Mature enterocytes Loss of absorptive ability Most common cause of diarrhea in kids Winter seasonal pattern 8 days Immunoassay for stool antigen New vaccine just out
Norovirus Responsible for most of what Two symptoms Seasonality DIagnosed how (3) Most common source
Nonspecific diarrhea 12-60 hours of Vomiting and diarrhea Summer diarrhea RIA, PCR, electron microscopy Contaminated water and food at nursing homes and cruise ships
Adenovirus
Age
Diagnosis
4 years old or less
Latex agglutination on stool samples
3 path changes in viral enterocolitis
Shortening of villi
Lymphocytosis of lamina propria
Hyperplasia of crypt cells
Vibrio cholera Severity Primary sign Main mechanism of path How to treat Diagnosis
High mortality in untreated due to fluid loss
Rice water stools
Cholera toxin
Supportive care
Stool culture finds yellow colonies on TCBS medium
ETEC Common cause of Recovery type Two path mechanisms Inflammation involved Diarrhea type
Traveler's diarrhea Self-limited Heat stable toxin and heat labile toxin No inflammation Watery diarrhea
EPEC occurs in what age
Pediatric patients
EHEC Primary strain Associated with what complication in kids Toxin type Effect in blood How to diagnose Two common causes
0157:H7 Hemolytic uremic syndrome in kids Shiga-toxin like Causes platelet aggregation and thrombus Peripheral smear with schistocytes Incompletely cooked meat and petting zoos
EIEC Symptoms identical to what disease Two symptoms Utilize what to enter intestinal cells What toxins
Shigella
Diarrhea and fever
Adhesin proteins allow them to be very invasive
No toxins made
Staph food poisoning Cause of diarrhea Common situation type of toxin recovery length
Preformed toxin
Picnics
Heat stable toxin
2-3 days