Some Other General Micro Stuff

Question 1

Dominant Skin Flora

Answer 1

S. epidermidis

Question 2

Dominant Nose Flora

Answer 2

S. epidermidis, colonized by S. aureus

Question 3

Dominant Oropharynx Flora

Answer 3

Viridans group streptococci

Question 4

Dental Plaque Bacteria

Answer 4

S. Mutans

Question 5

Dominant Colon Flora

Answer 5

B. fragilis>E. coli

Question 6

Dominant Vaginal Flora

Answer 6

Lactobacillus, colonized by E. coli and group B strep

Question 7

Dominant Vaginal Flora

Answer 7

Lactobacillus, colonized by E. coli and group B strep

Question 8

Food Poisoning from Rice

Answer 8

B. cereus

Question 9

Food Poisoning from Improperly Canned Foods

Answer 9

C. botulinum

Question 10

Food Poisoning from Reheated Meat Dishes

Answer 10

C. perfringens

Question 11

Food Poisoning from Undercooked Meat

Answer 11

E. coli O157:H7

Question 12

Food Poisoning from Poultry, Meat, Eggs

Answer 12

Salmonella

Question 13

Food Poisoning from Meats, Mayonnaise, Custard

Answer 13

S. aureus (preformed toxin)

Question 14

Food Poisoning from Contaminated Seafood

Answer 14

V. parahaemolyticus and V. vulnificus

Question 15

Food Poisoning from Contaminated Seafood

Answer 15

V. parahaemolyticus and V. vulnificus

Question 16

Bugs Causing Bloody Diarrhea

Answer 16

Campylobacter
E. histolytica
EHEC
EIEC
Salmonella
Shigella
Y. enterocolitica

Question 17

Bugs Causing Watery Diarrhea

Answer 17

C. difficile
C. perfringens (also causes gas gangrene)
ETEC (traveler's diarrhea)
Protozoa (giardia and cryptosporidium)
V. cholerae
Viruses (rotavirus, norovirus)

Question 18

Pneumonia in Neonates

Answer 18

Group B streptococci

E. coli

Question 19

Pneumonia in Children (>4 weeks)

Answer 19

Viruses (RSV)
Mycoplasma
C. trachomatis
C. pneumoniae
S. pneumoniae

Question 20

Pneumonia in Adults 18-40

Answer 20

Mycoplasma
C. pneumoniae
S. pneumoniae

Question 21

Pneumonia in Adults 40-65

Answer 21

S. pneumoniae
H. influenze
Anaerobes
Viruses
Mycoplasma

Question 22

Pneumonia in Elderly

Answer 22

S pneumoniae
Influenza virus
Anaerobes
H influenzae
Gram negative rods

Question 23

Meningitis in Newborn

Answer 23

Listeria
E. coli
Group B strep

Question 24

Meningitis in Children (6mo-6yr)

Answer 24

S. pneumoniae
N. meningitidis
H. influenzae B
Enteroviruses

Question 25

Meningitis from 6-60 years

Answer 25

S pneumoniae N meningitidis Enteroviruses HSV

Question 26

Meningitis 60+

Answer 26

S. pneumoniae Gram negative rods Listeria

Question 27

Empirical Treatment for Meningitis

Answer 27

Ceftriaxone and vancomycin (add ampicillin if Listeria suspected)

Question 28

Viral Causes of Meningitis

Answer 28

``` Enteroviruses HSV2 (HSV1=encephalitis) HIV West Nile VZV ```

Question 29

Osteomyelitis Most Common, Sexually Active, Diabetics/IV drugs, Sickle Cell, Prosthetic Joint, Vertebral involvement, cat and dog bites

Answer 29

Most common: S. aureus Sexually active: Neisseria gonorrhoeae (septic arthritis more common) Diabetics/IV drugs: Pseudomonas aeruginosa, Serratia Sickle cell: salmonella Prosthetic joint: S aureus/S epidermidis Cat and dog bites: Pasteurella multocida

Question 30

UTI Bugs

Answer 30

E. Coli (leading cause) S. Saprophyticus (2nd leading cause; in sexually active women) Klebsiella pneumoniae (3rd leading cause--associated with catheters) Serratia Enterobacter Proteus mirabilis (urease + and produces struvite stones), Pseudomonas aeruginosa

Question 31

Pneumonia in Alcoholic/IV Drug User

Answer 31

S. pneumoniae Klebsiella Staphylococcus

Question 32

Pneumonia in CF

Answer 32

Pseudomonas S. aureus S. pneumoniae

Question 33

Atypical Pneumonia

Answer 33

Mycoplasma Legionella Chlamydia

Question 34

ToRCHeS Infections (mother to fetus)

Answer 34

``` Toxoplasma gondii Rubella CMV HIV Syphilis ```

Question 35

Red Rashes of Childhood

Answer 35

Coxsackievirus type A (Hand-foot-mouth disease) HHV-6 (Roseola: several days of high fever followed by a macular body rash) Measles virus (descending rash preceded by cough, coryza, conjunctivitis, and koplik spots) Parvovirus B19 (Slapped cheek rash) Rubella (Descending fine truncal rash with postauricular lymphadenopathy) Streptococcus pyogenes (scarlet fever: "sandpaper like rash") VZV (Chickenpox: vesicular rash on trunk spreading to face and extremities)

Question 36

Red Rashes of Childhood

Answer 36

Coxsackievirus type A (Hand-foot-mouth disease) HHV-6 (Roseola: several days of high fever followed by a macular body rash) Measles virus (descending rash preceded by cough, coryza, conjunctivitis, and koplik spots) Parvovirus B19 (Slapped cheek rash) Rubella (Descending fine truncal rash with postauricular lymphadenopathy) Streptococcus pyogenes (scarlet fever: "sandpaper like rash") VZV (Chickenpox: vesicular rash on trunk spreading to face and extremities)

Question 37

Two Most Common Causes of Nosocomial Infections

Answer 37

E. coli (UTI from catheter) | S. aureus (wound infection)

Question 38

Seven Other Nosocomial Infections (Not E. coli or S. aureus)

Answer 38

``` C. albicans (hyperalimentation) CMV/RSV (newborn nursery) P. mirabilis (catheter) HBV (renal dialysis unit) Legionella (water aerosols) P. aeruginosa (respiratory therapy equipment) ```