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USMLE1 - Microbiology > 5. Microbiology by Diseases > Flashcards

5. Microbiology by Diseases Flashcards

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1
Q

Dominant normal flora of the: Skin

A

Staphylococcus epidermis

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2
Q

Dominant normal flora of the: Nose

A

S. epidermis; colonized by S. aureus

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3
Q

Dominant normal flora of the: Oropharynx

A

Viridans group streptococci

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4
Q

Dominant normal flora of the: Dental plaque

A

Streptococcus mutans

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5
Q

Dominant normal flora of the: Colon

A

Bacteroides fragilis > E. coli

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6
Q

Dominant normal flora of the: Vagina

A

Lactobacillus, colonized by E. coli and GBS

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7
Q

Neonates and normal flora

A

Neonates delivered by cesarean section havve no flora, but are rapidly colonized after birth.

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8
Q

Food poisoning from: Vibrio parahemolyticus and V. vulnificus

A

Food: Contaminated seafood (V. vulnificus can also cause wound infxn from contact w/ contaminated water or shellfish)

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9
Q

Food poisoning from: Bacillus cereus

A

Food: reheated rice. (Food poisoning from reheated rice? Be Serious! [B. cereus])

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10
Q

Food poisoning from: S. aureus

A

Food: Meats, mayonnaise, custard (pre-formed toxin)

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11
Q

Food poisoning from: Clostridium perfringens

A

Food: reheated meat dishes

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12
Q

Food poisoning from: Clostridium botulinum

A

Food: improperly canned foods (bulging cans)

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13
Q

Food poisoning from: E. coli O157:H7

A

Food: Undercooked meat

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14
Q

Food poisoning from: Salmonella

A

Food: poultry, meat, and eggs.

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15
Q

What are two bacteria that cause a food poisoning that starts quickly and ends quickly?

A

S. aureus and B. cereus

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16
Q

Bugs that cause diarrhea: Campylobacter Type of diarrhea? Findings?

A

Bloody diarrhea. Comma- or S-shaped organisms; growth at 42C; Oxidase (+) [bugs that cause diarrhea: type of diarrhea and findings]

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17
Q

Bloody diarrhea. Comma- or S-shaped organisms; growth at 42C; Oxidase (+) [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Campylobacter

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18
Q

Bugs that cause diarrhea: Salmonella Type of diarrhea? Findings?

A

bloody diarrhea. Lactose (-); Flagellar motility [bugs that cause diarrhea: type of diarrhea and findings]

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19
Q

bloody diarrhea. Lactose (-); Flagellar motility [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Salmonella

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20
Q

Bugs that cause diarrhea: Shigella Type of diarrhea? Findings?

A

Bloody diarrhea Lactose (-) Very low ID50 Produces Shiga toxin [bugs that cause diarrhea: type of diarrhea and findings]

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21
Q

Bloody diarrhea Lactose (-) Very low ID50 Produces Shiga toxin [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Shigella

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22
Q

Bugs that cause diarrhea: Enterohemorrhagic E. coli (EHEC) Type of diarrhea? Findings?

A

Bloody diarrhea O157:H7 Can cause HUS Makes Shiga-like toxin [bugs that cause diarrhea: type of diarrhea and findings]

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23
Q

Bloody diarrhea O157:H7 Can cause HUS Makes Shiga-like toxin [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Enterohemorrhagic E. coli (EHEC)

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24
Q

Bugs that cause diarrhea: Enteroinvasive E. coli (EIEC) Type of diarrhea? Findings?

A

Bloody diarrhea. Invades colonic mucosa. [bugs that cause diarrhea: type of diarrhea and findings]

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25
Q

Bloody diarrhea. Invades colonic mucosa. [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Enteroinvasive E. coli (EIEC)

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26
Q

Bugs that cause diarrhea: Yersinia enterocolitica Type of diarrhea? Findings?

A

Bloody diarrhea Day-care outbreaks Pseudoappendicitis [bugs that cause diarrhea: type of diarrhea and findings]

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27
Q

Bloody diarrhea Day-care outbreaks Pseudoappendicitis [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Yersinia enterocolitica

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28
Q

Bugs that cause diarrhea: C. difficile Type of diarrhea? Findings?

A

Can cause both watery and bloody diarrhea. Pseudomembranous colitis. [bugs that cause diarrhea: type of diarrhea and findings]

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29
Q

Can cause both watery and bloody diarrhea. Pseudomembranous colitis. [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: C. difficile

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30
Q

Bugs that cause diarrhea: Entamoeba histolytica Type of diarrhea? Findings?

A

Bloody diarrhea. Protozoan. [bugs that cause diarrhea: type of diarrhea and findings]

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31
Q

Bloody diarrhea. Protozoan. [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Entamoeba histolytica

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32
Q

Bugs that cause diarrhea: Enterotoxigenic E. coli (ETEC) Type of diarrhea? Findings?

A

Watery diarrhea. Traveler’s diarrhea Produces ST and LT toxins [bugs that cause diarrhea: type of diarrhea and findings]

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33
Q

Watery diarrhea. Traveler’s diarrhea Produces ST and LT toxins [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Enterotoxigenic E. coli (ETEC)

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34
Q

Bugs that cause diarrhea: Vibrio cholerae Type of diarrhea? Findings?

A

Watery diarrhea. Comma-shaped organisms Rice-water diarrhea. [bugs that cause diarrhea: type of diarrhea and findings]

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35
Q

Watery diarrhea. Comma-shaped organisms Rice-water diarrhea. [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Vibrio cholerae

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36
Q

Bugs that cause diarrhea: C. perfringens Type of diarrhea? Findings?

A

Watery diarrhea. Also causes gas gangrene. [bugs that cause diarrhea: type of diarrhea and findings]

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37
Q

Watery diarrhea. Also causes gas gangrene. [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: C. perfringens

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38
Q

Bugs that cause diarrhea: Protozoa Type of diarrhea? Findings?

A

Watery diarrhea Giardia, Cryptosporidium (in immunocompromised) [bugs that cause diarrhea: type of diarrhea and findings]

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39
Q

Watery diarrhea Giardia, Cryptosporidium (in immunocompromised) [bugs that cause diarrhea: type of diarrhea and findings]

A

Bugs that cause diarrhea: Protozoa

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40
Q

Bugs that cause diarrhea: Viruses Type of diarrhea? Findings?

A

Watery diarrhea. Rotavirus, adenovirus, Norwalk virus (norovirus). [bugs that cause diarrhea: type of diarrhea and findings]

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41
Q

Common causes of pneumonia in neonates (< 4wks)

A

Group B streptococci E. coli

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42
Q

Common causes of pneumonia in children (4wks - 18yrs)

A

Viruses (R SV) M ycoplasma C hlamydia pneumoniae S treptococcus pneumoniae (R unts M ay C ough S putum)

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43
Q

Common causes of pneumonia in adults (18-40yrs)

A

Mycoplasma Chlamydia pneumoniae Streptococcus pneumoniae

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44
Q

Common causes of pneumonia in Adults (40-65yrs)

A

Streptococcus pneumoniae H. influenzae Anaerobes Viruses Mycoplasma

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45
Q

Common causes of pneumonia in the elderly (>65)

A

Streptococcus pneumoniae Viruses Anaerobes H. influenzae Gram (-) rods

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46
Q

Common causes of nosocomial (hospital-acquired) pneumonia

A

Staphylococcus Enteric Gram (-) rods

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47
Q

Common causes of pneumonia in the immunocompromised

A

Staphylococcus Enteric Gram (-) rods Fungi Viruses Pneumocystis jiroveci (w/ HIV)

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48
Q

Common cause of pneumonia w/ aspiration

A

Anaerobes

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49
Q

Common cause of pneumonia in alcoholics/IV drug users

A

Streptococcus pneumoniae Klebsiella Staphylococcus

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50
Q

Common causes of pneumonia in CF

A

Pseudomonas

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51
Q

Common causes of post-viral pneumonia

A

Staphylococcus H. influenzae

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52
Q

Common causes of atypical pneumonia

A

Mycoplasma Legionella Chlamydia

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53
Q

Common causes of meningitis in newborn (0-6 months

A

Group B streptococci E. coli Listeria

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54
Q

Common causes of meningitis in children (6mos - 6yrs)

A

Streptococcus pneumoniae Neisseria meningitidis Haemophilus influenzae type B Enteroviruses

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55
Q

Common causes of meningitis (6-60yrs)

A

N. miningitidis Enteroviruses S. pneumoniae HSV

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56
Q

Common causes of meningitis in 60+ year-olds

A

Streptococcus pneumoniae Gram (-) rods Listeria

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57
Q

Viral causes of meningitis

A

Enteroviruses (esp. coxsackievirus) HSV HIV West Nile virus VZV

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58
Q

Common causes of meningitis in HIV

A

Cryptococcus CMV Toxoplasmosis (brain abscess) JC virus (PML)

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59
Q

Incidence of H. influenzae meningitis?

A

Has decreased greatly w/ introduction of H. influenzae vaccine in last 10-15 years.

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60
Q

CSF findings in meningitis: Bacterial [Pressure? Cell type? Protein? Sugars?]

A

Increased pressure Increased PMNs Increased protein Decreased sugar

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61
Q

Increased pressure Increased PMNs Increased protein Decreased sugar [CSF findings in meningitis – what is the bug?]

A

Bacterial

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62
Q

CSF findings in meningitis: Fungal/TB [Pressure? Cell type? Protein? Sugars?]

A

Increased pressure Increased lymphocytes Increased proein Decreased sugar

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63
Q

Increased pressure Increased lymphocytes Increased proein Decreased sugar [CSF findings in meningitis – what is the bug?]

A

Fungal/TB

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64
Q

CSF findings in meningitis: Viral [Pressure? Cell type? Protein? Sugars?]

A

Normal/increased pressure Increased lymphocytes Normal/increased protein Normal sugar

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65
Q

Normal/increased pressure Increased lymphocytes Normal/increased protein Normal sugar [CSF findings in meningitis – what is the bug?]

A

Viral

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66
Q

Osteomyelitis in most ppl is due to…? Who gets most osteomyelitis?

A

Staph aureus in most ppl. Most osteomyelitis occurs in children.

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67
Q

Elevated CRP and ESR in osteomyelitis?

A

Classic findings, but nonspecific

68
Q

Osteomyelitis in sexually active pt

A

Neisseria gonorrhoeae (rare) Septic arthritis more common

69
Q

Osteomyelitis in diabetics and drug addicts

A

Pseudomonas aeruginosa

70
Q

Osteomyelitis in Sickle cell

A

Salmonella

71
Q

Osteomyelitis in prosthetic replacement

A

S. aureus and S. epidermis

72
Q

Osteomyelitis in vertebra

A

Mycobacterium tuberculosis (Pott’s dz)

73
Q

Osteomyelitis with cat and dog bites/scratches

A

Pasteurella multocida

74
Q

3 Most common causes of ambulatory UTI

A

1.) E. coli (50-80%) 2.) Staphylococcus saprophyticus (10-30%): 2nd most common cause of UTI in young, sexually active, ambulatory women 3.) Klebsiella (8-10%)

75
Q

Common causes of UTI in a hospital setting

A

E. coli Proteus Klebsiella Serratia Pseudomonas

76
Q

Gender and epidemiology of UTIs

A

10:1 women to men (b/c of short urethra colonized by fecal flora)

77
Q

Predisposing factors to UTIs

A

Flow obstruction Kidney surgery Catheterization Gynecologic abnormalities Diabetes Pregnancy

78
Q

Mechanisms of UTI infxn

A

Mostly caused by ascending infxns. In males: babies w/ congenital defects, elderly w/ enlarged prostates

79
Q

Sx of UTI

A

Dysuria Frequency Urgency Suprapubic pain

80
Q

Sx of Pyelonephritis

A

Fever Chills Flank pain CVA tenderness (costovertebral angle – tender above kidneys on back)

81
Q

UTI bugs: Serratia maracescens Features?

A

Some strains produce a red pigment; often nosocomial and drug-resistant.

82
Q

Features: Some strains produce a red pigment; often nosocomial and drug-resistant. Which UTI bug is this?

A

Serratia maracescens

83
Q

UTI bugs: Staphylococcus saprophyticus Features?

A

2nd leading cause of community-acquired UTI in sexually active women.

84
Q

Features: 2nd leading cause of community-acquired UTI in sexually active women. Which UTI bug is this?

A

Staphylococcus saprophyticus

85
Q

UTI bugs: Escherichia coli Features?

A

Leading cause of UTI. Colonies show metallic sheen on EMB agar.

86
Q

Features: Leading cause of UTI. Colonies show metallic sheen on EMB agar. Which UTI bug is this?

A

Escherichia coli

87
Q

UTI bugs: Enterobacter cloacae Features?

A

Often nosocomial and drug resistant.

88
Q

Features: Often nosocomial and drug resistant. Which UTI bug is this?

A

Enterobacter cloacae

89
Q

UTI bugs: Klebsiella pneumoniae Features?

A

Large mucoid capsule and viscous colonies

90
Q

Features: Large mucoid capsule and viscous colonies Which UTI bug is this?

A

Klebsiella pneumoniae

91
Q

UTI bugs: Proteus mirabilis Features?

A

Motility cuases swarming on agar. Produces urease; associated w/ struvite stones.

92
Q

Features: Motility cuases swarming on agar. Produces urease; associated w/ struvite stones. Which UTI bug is this?

A

Proteus mirabilis

93
Q

UTI bugs: Pseudomonas aeruginosa Features?

A

Blue-green pigment and fuity odor. Usually nosocomial and drug-resistant.

94
Q

Features: Blue-green pigment and fuity odor. Usually nosocomial and drug-resistant. Which UTI bug is this?

A

Pseudomonas aeruginosa

95
Q

List of UTI bugs

A

SSEEK PP S erratia marcescens S taphylococcus saprophyticus E scherichia coli E nterobacter cloacae K lebsiella pneumoniae P roteus mirabilis P seudomonas aeruginosa

96
Q

Diagnostic markers of UTI

A

Leukocyte esterase: (+) = bacterial Nitrite test: (+) = Gram(-) organism

97
Q

ToRCHeS infxns What are they? List?

A

These important infxns are transmitted in utero or during vaginal birth: T oxoplasma gondii o R ubella C MV H IV H SV-2 e S yphilis

98
Q

Other important congenital infxns that do not fit into ToRCHeS

A

Listeria E. coli Group B streptococci All can be acquired placentally or from birth canal.

99
Q

ToRCHeS infxns, organism: Toxoplasma gondii Major clinical manifestations?

A

Classic triad of chorionitis, intracranial calcifications, and hydrocephalus. May be asymptomatic at birth.

100
Q

Major clinical manifestations: Classic triad of chorionitis, intracranial calcifications, and hydrocephalus. May be asymptomatic at birth. Which ToRCHeS organism is this?

A

Toxoplasma gondii

101
Q

ToRCHeS infxns, organism: Rubella Major clinical manifestations?

A

Deafness Cataracts Heart defects (PDA, pulmonary artery stenosis) Microcephaly Mental retardation Blueberry muffin baby due to rash

102
Q

Major clinical manifestations: Deafness Cataracts Heart defects (PDA, pulmonary artery stenosis) Microcephaly Mental retardation Blueberry muffin baby due to rash Which ToRCHeS organism is this?

A

Rubella

103
Q

ToRCHeS infxns, organism: CMV Major clinical manifestations?

A

Petechial rash Intracranial calcifications Mental retardation Hepatosplenomegaly Microcephaly Jaundice 90% are asymptomatic at birth.

104
Q

Major clinical manifestations: Petechial rash Intracranial calcifications Mental retardation Hepatosplenomegaly Microcephaly Jaundice 90% are asymptomatic at birth. Which ToRCHeS organism is this?

A

CMV

105
Q

ToRCHeS infxns, organism: HIV Major clinical manifestations?

A

Hepatosplenomegaly Neurologic abnormalities Frequent infxns

106
Q

Major clinical manifestations: Hepatosplenomegaly Neurologic abnormalities Frequent infxns Which ToRCHeS organism is this?

A

HIV

107
Q

ToRCHeS infxns, organism: HSV-2 Major clinical manifestations?

A

Encephalitis Conjuntivitis Vesicular skin lesions Often asymptomatic at birth Most infxns are transmitted during birth thru an infected maternal genital tract.

108
Q

Major clinical manifestations: Encephalitis Conjuntivitis Vesicular skin lesions Often asymptomatic at birth Most infxns are transmitted during birth thru an infected maternal genital tract. Which ToRCHeS organism is this?

A

HSV-2

109
Q

ToRCHeS infxns, organism: Syphilis Major clinical manifestations?

A

Cutaneous lesions Hepatosplenomegaly Jaundice Saddle nose Saber shins Hutchinson teeth CN VIII deafness Rhinitis (snuffles)

110
Q

Major clinical manifestations: Cutaneous lesions Hepatosplenomegaly Jaundice Saddle nose Saber shins Hutchinson teeth CN VIII deafness Rhinitis (snuffles) Which ToRCHeS organism is this?

A

Syphilis

111
Q

Red rashes of childhood

A

Measles Rubella HHV-6 (roseola) Scarlet fever (group A streptococcus) Parvovirus B19 (slapped cheek rash, erythema infectiosum) VZV (Chickenpox), Coxackievirus type A (Hand-foot-mouth)

112
Q

STD’s: Gonorrhea Organism? Clinical features?

A

Neisseria gonorrhoeae Urethritis, cervicitis, PID, prostatitis, epididymitis, arthritis, creamy purulent discharge

113
Q

Neisseria gonorrhoeae Urethritis, cervicitis, PID, prostatitis, epididymitis, arthritis, creamy purulent discharge Disease?

A

Gonorrhea

114
Q

STD’s: Primary syphilis Organism? Clinical features?

A

Treponema pallidum Painless chancre

115
Q

Treponema pallidum Painless chancre Disease?

A

Primary syphilis

116
Q

STD’s: Secondary syphilis Organism? Clinical features?

A

Treponema pallidum Fever, lymphadenopathy, skin rashes, condylomata lata

117
Q

Treponema pallidum Fever, lymphadenopathy, skin rashes, condylomata lata Disease?

A

Secondary syphilis

118
Q

STD’s: Tertiary syphilis Organism? Clinical features?

A

Treponema pallidum Gummas (a non-cancerous growth, a form of granuloma) Tabes dorsalis General paresis Aortitis Argyll Robertson pupil

119
Q

Treponema pallidum Gummas (a non-cancerous growth, a form of granuloma) Tabes dorsalis General paresis Aortitis Argyll Robertson pupil Disease?

A

Tertiary syphilis

120
Q

STD’s: Genital herpes Organism? Clinical features?

A

HSV-2 Painful penile, vulvar, or cervical ulcers; can cause systemic Sx such as: fever, HA, myalgia

121
Q

HSV-2 Painful penile, vulvar, or cervical ulcers; can cause systemic Sx such as: fever, HA, myalgia Disease?

A

Genital herpes

122
Q

STD’s: Chlamydia Organism? Clinical features?

A

Chlamydia trachomatis (D-K) Urethritis, cervicitis, conjunctivitis, Reiter’s syndrome, PID

123
Q

Chlamydia trachomatis (D-K) Urethritis, cervicitis, conjunctivitis, Reiter’s syndrome, PID Disease?

A

Chlamydia

124
Q

STD’s: Lymphogranuloma venereum Organism? Clinical features?

A

Chlamydia trachomatis (L1-L3) Ulcers, lymphadenopathy, rectal strictures.

125
Q

Chlamydia trachomatis (L1-L3) Ulcers, lymphadenopathy, rectal strictures. Disease?

A

Lymphogranuloma venereum

126
Q

STD’s: Trichomoniasis Organism? Clinical features?

A

Trichomonas vaginalis Vaginitis Strawberry-colored mucosa

127
Q

Trichomonas vaginalis Vaginitis Strawberry-colored mucosa Disease?

A

Trichomoniasis

128
Q

STD’s: AIDS Organism? Clinical features?

A

HIV Opportunistic infxns, Kaposi’s sarcoma, lymphoma

129
Q

HIV Opportunistic infxns, Kaposi’s sarcoma, lymphoma Disease?

A

AIDS

130
Q

STD’s: Condylomata accumulata Organism? Clinical features?

A

HPV 6 and 11 Genital warts, koilocytes

131
Q

HPV 6 and 11 Genital warts, koilocytes Disease?

A

Condylomata accumulata

132
Q

STD’s: Hepatitis B Organism? Clinical features?

A

HBV Jaundice

133
Q

HBV Jaundice Disease?

A

Hepatitis B

134
Q

STD’s: Chancroid Organism? Clinical features?

A

Haemophilus ducreyi (it’s so painful, you do cry ) Painful genital ulcer, inguinal adenopathy.

135
Q

Haemophilus ducreyi (it’s so painful, you do cry ) Painful genital ulcer, inguinal adenopathy. Disease?

A

Chancroid

136
Q

STD’s: Bacterial vaginosis Organism? Clinical features?

A

Garnderella vaginalis Noninflammatory, malodorous discharge (fishy smell) Positive whiff test Clue cells

137
Q

Garnderella vaginalis Noninflammatory, malodorous discharge (fishy smell) Positive whiff test Clue cells Disease?

A

Bacterial vaginosis

138
Q

Top bugs that cause Pelvic inflammatory dz

A

Chlamydia trachomatis (subacute, often undiagnosed) Neisseria gonorrhoeae (acute, high fever) Chlamydia trachomatis (the most common STD in the USA: 3-4milliion cases/year)

139
Q

Signs and Sx’s of Pelvic inflammatory dz

A

Cervical motion tenderness (chandelier sign) Purulent cervical discharge. May include: Salpingitis, endometritis, hydrosalpinx, and tubo-ovarian abscess.

140
Q

Pelvic inflammatory dz can lead to… ?

A

Fitz-Hugh-Curtis Syndrome: infxn of the liver capsule and violin string adhesions of parietal peritoneum to liver.

141
Q

What is salpingitis a risk factor for?

A

Ectopic pregnancy Infertility Chronic pelvic pain Adhesions

142
Q

Other STD’s that cause PID

A

Garnderella (clue cells) Trichomonas (corkscrew motility on wet prep)

143
Q

Nosocomial pathogen: CMV, RSV Risk factor?

A

Newborn nursery

144
Q

Risk factor for a nosocomial pathogen: Newborn nursery

A

What is the pathogen? CMV, RSV

145
Q

Nosocomial pathogen: E. coli, Proteus mirabilis Risk factor?

A

Urinary catheterization

146
Q

Risk factor for a nosocomial pathogen: Urinary catheterization What is the pathogen?

A

E. coli, Proteus mirabilis

147
Q

Nosocomial pathogen: Pseudomonas aeurginosa Risk factor?

A

Respiratory therapy equipment

148
Q

Risk factor for a nosocomial pathogen: Respiratory therapy equipment What is the pathogen?

A

Pseudomonas aeurginosa

149
Q

Nosocomial pathogen: HBV Risk factor?

A

Work in renal dialysis unit

150
Q

Risk factor for a nosocomial pathogen: Work in renal dialysis unit What is the pathogen?

A

HBV

151
Q

Nosocomial pathogen: Candida albicans Risk factor?

A

Hyperalimentation

152
Q

Risk factor for a nosocomial pathogen: Hyperalimentation What is the pathogen?

A

Candida albicans

153
Q

Nosocomial pathogen: Legionella Risk factor?

A

Water aerosols

154
Q

Risk factor for a nosocomial pathogen: Water aerosols What is the pathogen?

A

Legionella

155
Q

The 2 most common causes of nosocomial infxns?

A

E. coli (UTI) S. aureus (wound infxn)

156
Q

Presume Pseudomonas aeruginosa as the cause of a nosocomial infxn when…?

A

Presume Pseudomonas AIR uginosa when AIR or burns are involved.

157
Q

When do you suspect Legionella as a cause of nosocomial infxn?

A

Suspect Legionella when a water source is involved.

158
Q

Bug hints (if all else fails):Pus, empyema (collection of pus in pre-existing anatomical cavity), abscess What is the bug?

A

S. aureus

159
Q

Bug hints (if all else fails):Pediatric infxn What is the bug?

A

haemophilus influenzae (including epiglottitis)

160
Q

Bug hints (if all else fails):Pneumonia in CF, burn infxn What is the bug?

A

Pseudomonas aeruginosa

161
Q

Bug hints (if all else fails):Branching rods in oral infxn What is the bug?

A

Actinomyces israellii

162
Q

Bug hints (if all else fails):Traumatic open wound What is the bug?

A

Clostridium perfringens

163
Q

Bug hints (if all else fails):Surgical wound What is the bug?

A

S. aureus

164
Q

Bug hints (if all else fails):Dog or cat bite What is the bug?

A

Pasteurella multocida

165
Q

Bug hints (if all else fails):Currant jelly sputum What is the bug?

A

Klebsiella

166
Q

Bug hints (if all else fails):Sepsis/meningitis in newborn What is the bug?

A

group B strep

USMLE1 - Microbiology (7 decks)

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