Jessica Shared "GI Bugs - Exam 3" - 13 Picmonics
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GI Bugs - Exam 3
Bacillus Cereus Disease
- Signs and Symptoms
- Emetic Form
- Short Incubation (1-6 Hours)
- Nausea and Vomiting
- Diarrheal Form
- Long Incubation (8-16 Hours)
- Diarrhea and GI Pain
2 mins
Clostridium perfringens
- Characteristics
- Gram-Positive
- Rod-Shaped
- Anaerobe
- Spore-Forming
- Alpha Toxin Lecithinase
- Phospholipase
- Double-Zone Hemolysis
- Heat Labile Enterotoxin
- Signs and Symptoms
- Myonecrosis
- Gas Gangrene
- Food Poisoning and Diarrhea
- Treatment
- Hyperbaric O2 Chamber
2 mins
Shigella
- Characteristics
- Gram-Negative
- Bacilli
- Non Lactose Fermenting
- White on Macconkey Agar
- Oxidase Negative
- Non H2S Producing
- Day Care Centers
- High Virulence
- Replicates Intracellularly
- Actin Rocket
- Signs and Symptoms
- Bloody Diarrhea
- Shiga Toxin
- Inhibits 60S Ribosome
- Hemolytic Uremic Syndrome (HUS)
- Hemolytic Anemia
- Thrombocytopenia
- Kidney Failure
3 mins
Salmonella Enterica Spp.
- Characteristics
- Animal and Human Reservoir
- Poultry and Eggs
- Turtles
- PMN Immune Response
- Symptoms
- Gastroenteritis
- Diarrhea
- Possibly Bloody
- Treatments
- No Antibiotics
- No Vaccine Available
2 mins
Enterohemorrhagic E. Coli (EHEC)
- Characteristics
- O157:H7
- Non-Sorbitol Fermenting
- Hamburger Meat
- Produces Shiga-like Toxin
- Gram-negative
- Lysogeny
- Inactivates 60S Ribosome
- Disease
- Bloody Diarrhea
- Hemolytic Uremic Syndrome (HUS)
- Hemolytic Anemia
- Acute Renal Failure
- Thrombocytopenia
2 mins
Campylobacter jejuni
- Characteristics
- Gram-Negative
- Bacillus
- Flagella
- Curved
- Corkscrew Appearance
- Oxidase-Positive
- Grows Well at 42 Degrees
- Undercooked Meat
- Unpasteurized Milk
- Animals with Diarrhea
- Signs and Symptoms
- Bloody Diarrhea
- Guillain-Barre syndrome
- Reactive Arthritis
3 mins
Vibrio Cholera Disease
- ADP Ribosylating AB Toxin
- Turn Gs on Causing Increase in cAMP
- Secretion of Cl
- Blocks Reabsorption of Na
- Rice Water Diarrhea
1 min
Norovirus
- Characteristics
- Calicivirus
- RNA Virus
- Non-enveloped
- Icosahedral
- SS Positive Linear
- Symptoms
- Acute Gastroenteritis
- Treatment
- Supportive Therapy
- Considerations
- Often found in Cruise Ships
1 min
Yersinia Enterocolitica
- Characteristics
- Gram-Negative
- Bacilli
- Non-lactose Fermenting
- Non-H2S Producing
- Oxidase-Negative
- Day Care Centers
- Pork
- Raw Milk
- Pet (Puppy) Feces
- Signs and Symptoms
- Bloody Diarrhea
- Mesenteric Adenitis
- Granulomatous Microabscess in Mesenteric Lymph Nodes
- Pseudoappendicitis (Mimics)
- Reactive Arthritis
2 mins
Listeria Monocytogenes Disease
- Signs and Symptoms
- Soft Cheese
- Pregnant Women Have Flu-Like Symptoms
- Pregnant Women Have GI Symptoms
- Granulomatosis Infantiseptica
- Spontaneous Abortion
- Meningitis
- Monocytes in CSF
- Treatment
- Ampicillin
2 mins
Giardia lamblia
- Characteristics
- Protozoa
- Ingestion of Cysts
- Seen in Campers
- Daycare Centers
- Mental Hospitals
- Infects Small Intestine
- Signs and Symptoms
- Bloating
- Flatulence
- Fatty Diarrhea
- Diagnosis
- Crescent-shaped Protozoa Adjacent to Epithelial Brush Border
- Predisposed if Low IgA
- Treatment
- Metronidazole
3 mins
Clostridioides difficile (Clostridium difficile)
- Characteristics
- Gram-Positive
- Bacillus
- Anaerobe
- Clindamycin and Ampicillin
- Toxin A Enterotoxin
- Damages Brush Border of Gut
- Toxin B Cytotoxin
- Damages Cytoskeletal Structure
- Signs and Symptoms
- Diarrhea
- Pseudomembranous Colitis
- Toxic Megacolon
- Diagnosis
- Detect Toxins in Stool
- Treatment
- Metronidazole
- Vancomycin
3 mins
Staphylococcus aureus Characteristics
- Characteristics
- Gram-Positive
- Cocci
- Catalase-Positive
- Coagulase-Positive
- Beta-Hemolytic
- Protein A Virulence Factor
- Inhibits Phagocytosis
- MRSA
- Resistant to Beta Lactams Due to Altered Penicillin Binding Proteins (PBPs)
2 mins
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