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Microbio systems

skin colonized by S. epidermidis
Nose colonized by S. epidermidis, S. aureues
oropharynx Viridans group streptococci
Colon Bacteroides fragilis > E. coli
Vagina Lactobacillus, E. coli, B strep
Seafood. Which one can also cause infection when shellfish come in contact with a wound V. parahaemolyticus, V. vulnificus
Reheated meat dishes Clostridium perfringens
undercooked meet E. coli 0157 H7
Camplyobacter: type of diarrhea, findings bloody diarrhea; comma, S-shaped organisms; growth at 42 C oxidase positive
Salmonella, disease and distinguishing characteristic Bloody diarrhea; lactose negative; flagellar motility
Shigella- cause and distinguishing characteristic Bloody diarrhea; lactose negative; low ID50, Shiga toxin (cleaves host cell rRNA, enhances cytokine release-HUS)
EHEC - disease, distinguishing characteristics Bloody diarrhea O157H7 can cause HUS; Makes shiga like toxin
EIEC - disease, distinguishing characteristic Bloody diarrhea; invades colonic mucosa
Yersinia enterocolitica- disease, distinguishing characteristic Bloody diarrhea; day care outbreaks, pseudoappendicitis (RUQ), ulcerative colitis
C. dificile- disease, distinguishing characteristic Bloody diarrhea/watery diarrhea; pseudomembranous colitis
Entamoeba histolytica -disease, distinguishing characteristic Bloody diarrhea, protozoan
ETEC -disease, distinguishing characteristic Watery diarrhea, Traveler's diarrhea; produces ST and LT toxins
V. cholerae -disease, distinguishing characteristic Comma shaped organisms, rice water diarrhea
C. perfringens -disease, distinguishing characteristic Watery diarrhea, gas ganagrene
Protozoa -disease, distinguishing characteristic Watery diarrhea; Crypto (immunocompromised), giardia
Viruses that cause watery diarrhea rotavirus, adenovirus, Nowalk virus
Pneumonia: Nenoates (< 4 weeks) Group B strep, E. coli
Pneumonia: Children (4 wk-18 yr) Runts May Cough Sputum (RSV, Mycoplasma, Chlamydia pneumoniae, Streptococcus pneumnoiae)
Pneumonia: Adults (18-40 year) Mycoplasma, C. pneumoniae, S. pnemoniae
Pneumonia: Adults (40-65) S. pneumoniae, H. influenzae, Anaerobes, Viruses, Mycoplasma
Pneumonia: Elderly S. pneumoniae, viruses, Anaerboes, H. influenzae, Gramn-negative rods
Pneumonia: Nosocomial (hospital acquired) Staph, enteric gram -
Pneumonia: Immunocompromised Staph, enteric gram-, fungi, viruses, PCP with HIV
Pnemonia: Aspiration Anaerobes
Pneumonia: Alcoholic/IV drug user S. pneumonia, Klebisiella, Staph
Pneumonia: Cystic fibrosis Pseudomonas
Pneumonia: Postivral Staph, H. influenzae
Pneumonia: Atypical Mycoplasma, legionella, chlamydia
Meningitis: Newborn (0-6 months) Group B strep, E. coli, Listeria
Meningitis: Children (6 mo - 6 years) S. pneumoniae, N. meningitidus, H. influenzae type B, enterovirus
Meningitis 6-60 years N. meningitidis, Enterovirus, S. pneumoniae, HSV
Meningitis: 60 years+ S. pneumoniae, Gram - rods, Listeria
Viral causes of meningitis enterovirus, espeically coxsackie, HSV, HIV, West Nile virus, VZV
Causes of meningitis in HIV patients Toxo, crypto, CMV, JC (PML)
CSF findings Pressure, Cell type, protein, sugar: Bacteria Increased pressure, increased PMNS, Increased proteins, decreased usgar
CSF findings Pressure, Cell type, protein, sugar: Fungal/TB Increased pressure, increased lymphocytes, increased pressure, decreased sugar
CSF findings Pressure, Cell type, protein, sugar: Viral Normal-increased pressure, increased lymphocytes, normal-increased protein, normal sugar
Way to remember CSF findings Bacteria: increased polys, fungal/TB and viruses: viruses will have normal sugar, lower opening pressure
Osteomyelitis most due to ____. S. aurues
Osteomyelitis: sexually active N. gonorrhoeae (rare), septic shock more common
Osteomyelitis: diabetics/drug addicts Pseudomonas
Osteomyelitis: Sickle cells Salmonella
Osteomyelitis: Prostetic replacement S. aureus, S. epidermidis
Osteomyelitis: Vertebral Mycobacterium TB (Pott's disease)
Osteomyelitis: Cat/dog bites Pasteurella multocida
UTI: ambulatory E. coli > S. Saprophyticus (most common in young teenage girls that are sexually active) > Klebsiella
UTI: hospital E. coli, Proteus, Klebsiella, Serratia, Pseudomonas
Predisposing factors to look for:, In babies, predisposing factor ____. flow obstruction, kidney surgery, catheterization, gynecologic abnormalities, diabetes, pregnancy. Congenital anomalies
UTI bugs SSEEK PP: Serratia marcescens, S. saprophyticus, E. coli, Enterobacter cloacae, Klebisiella pneumoniae, Proteus mirabilis, Psedumonas aeruginosa.
Large mucoid capsule and viscous colonies, lactose fermenter that produces UTI Klebisiella pneumoniae
Leading cause of UTI, colonies show metallic sheen on EMB agar E. coli
nosocomial, drug resistant UTIs Enterobacter cloacae, Serratia marcescens (produces a red pigment), Pseudomonas
Mobility causes "swarming" on agar; produces urease, associated with struvite stones and UTI Proteus mirabiliis
3 bugs that can be acquired placentally or through birth canal Listeria, E. coli, Group B strep, HSV-2
Toxoplasma gondii Calcifications, chorioretinitis, hydrocephalus; may be asymptomatic at birth
Deafness, cataracts, heart defects (PDA), "blueberry muffin baby" due to rash Rubella
Petechial rash, intracranial calcifications, mental retardation, hepatosplenomegaly, microcephaly, jaundice; 90% asymptomatic at birth CMV
hepatosplenomegaly, neurologic abnormalities, frequent infections HIV
encephalitis, conjunctivitis, vesicular skin lesions. Often asymptomatic at birth. HSV 2
cutaneous lesions, hepatosplenomegaly, jaundice, saddle nose, saber shins, Hutchinson teeth, CN VII, rhinitis (snuffles) Syphillis
Pyelonephritis Symptoms Fever, chills, flank pain, CVA tenderness
UTI Symptoms dysuria, frequency, urgency, suprapubic pain
Gonorrhea: clinical symptoms, organism Urethritis, cervicitis, PID, prostatitis, epididymitis, arthritis, creamy purulent discharge. N. gonorrhae
Name organism, disease: Painful penile, vulvar, cervical ulcers; can cause systemic symptoms: fever, headache, myalgia HSV-2, genital herpes
Urethritis, cervicitis, conjunctivitis, Reiter's, PID Chlamydia trachomatis (D-K). Has "corkscrew" motility on wet mount
Ulcers, lymphadenoapthy, rectal strictures C. trachomatis (L1-L3)
Condylomata acuminata is caused by: HPV 6,11
Chancroid is caused by ___ and causes ___- h. ducreyi and causes painful genital ulcer, inguinal adenopathy
PID that is often asymptomatic is caused by ___ while symptomatic PID is caused by ____. C. trachomatis, N. gonorrhoeae (acute, high fever).
Symptoms of PID chandelier sign (cervical motion tendernes), purulent cervical discharge.
sequelae of PID include salpingitis, enodmetritis, hydrosalpinx, tubo-ovarian abcess.
Fitz Hugh Curtis syndrome is seen in ____. It's described as: FHC is found in PID. Infection of the liver capsule and "violin string" adhesions of parietal peritoneum
Salpingitis is a RF ectopic pregnancy, infertility, chronic pelvic pain, adhesions
Hyperalimentation: RF for ___ candida
Respiratory therapy equipment: RF for ____ Pseudomonas aeuroginosa (AIR, BURNS)
burns: RF for ___ Pseudomonas
Urinary catheterization is a RF for ____, __- E. coli, Proteus mirabilis
Newborn nursery carries a risk for ___, ___ CMV, RSV
Infections after influenza Hemophilus, Strep, Staph
Created by: ddecampo



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