1|Page
AHN 577 ID TEST QUESTIONS AND ANSWERS
2025
How to distinguish gram neg from positive -
.....ANSWER... ✔✔ Gram negative is pink stain
Gram positive is purple stain
Gram positive cocci organisms - .....ANSWER... ✔✔
staph, strep, & Entrococcus
Gram positive rods - .....ANSWER... ✔✔
Corynbacerium, Bacillus, Listeria
Broad spectrum empiric therapy for gram positive cocci
- .....ANSWER... ✔✔ Vancomycin
Gram negative cocci - .....ANSWER... ✔✔ Neisseria
(meningitis or gonorrhoeae),
Moxorella catarrhalis
,2|Page
Gram negative rods - .....ANSWER... ✔✔
Enterobacteriaciae,
Normal gut flora (E Coli),
Vibrio,
Shigella,
Salmonella,
Psuedomonas,
Hemophilus
Normal Nasopharynx flora - .....ANSWER... ✔✔
Strep
Haemophilus
Neisseria
Mixed anaerobes
Candida
Actinomyces
Normal Skin flora - .....ANSWER... ✔✔ Staph, Strep
Corynebacteria
Proprionibacteria
Yeasts
,3|Page
Normal Gut flora upper bowel - .....ANSWER... ✔✔
Enterobacteriaceae
Enterococci
Candide
Normal Gut flora lower bowel - .....ANSWER... ✔✔
Bacteroides
Bifidobacteria
Clostidium
Peptostreptococci
Normal Vaginal flora - .....ANSWER... ✔✔
Lactobacilli
Strep
Corynebaceria
Candide
Actinomyces
Mycoplasma hominis
Culture interpretation is dependent on - .....ANSWER...
✔✔ Complete clinical picture (H/P, SSX. Labs, etc)
Method of collection
, 4|Page
Gram stain results
Cellular evidence
Broad spectrum ABX - .....ANSWER... ✔✔ Promotes
resistance to both normal and pathogenic flora (Use if
cause unknown)
Narrow spectrum - .....ANSWER... ✔✔ Confines
resistance to fewer organisms
Therapeutic considerations of ABX therapy -
.....ANSWER... ✔✔ Is infection present
Use narrowest spectrum, least toxic, least invasive, and
least expensive medication thats most effective.
Interventional concepts of ABX therapy - .....ANSWER...
✔✔ Observe w/o ABX
Prophylactic (Dental work w/ artifical heart valve)
Empiric Therapy (Awaiting cultures)
Specific Therapy (Based on cultures)
AHN 577 ID TEST QUESTIONS AND ANSWERS
2025
How to distinguish gram neg from positive -
.....ANSWER... ✔✔ Gram negative is pink stain
Gram positive is purple stain
Gram positive cocci organisms - .....ANSWER... ✔✔
staph, strep, & Entrococcus
Gram positive rods - .....ANSWER... ✔✔
Corynbacerium, Bacillus, Listeria
Broad spectrum empiric therapy for gram positive cocci
- .....ANSWER... ✔✔ Vancomycin
Gram negative cocci - .....ANSWER... ✔✔ Neisseria
(meningitis or gonorrhoeae),
Moxorella catarrhalis
,2|Page
Gram negative rods - .....ANSWER... ✔✔
Enterobacteriaciae,
Normal gut flora (E Coli),
Vibrio,
Shigella,
Salmonella,
Psuedomonas,
Hemophilus
Normal Nasopharynx flora - .....ANSWER... ✔✔
Strep
Haemophilus
Neisseria
Mixed anaerobes
Candida
Actinomyces
Normal Skin flora - .....ANSWER... ✔✔ Staph, Strep
Corynebacteria
Proprionibacteria
Yeasts
,3|Page
Normal Gut flora upper bowel - .....ANSWER... ✔✔
Enterobacteriaceae
Enterococci
Candide
Normal Gut flora lower bowel - .....ANSWER... ✔✔
Bacteroides
Bifidobacteria
Clostidium
Peptostreptococci
Normal Vaginal flora - .....ANSWER... ✔✔
Lactobacilli
Strep
Corynebaceria
Candide
Actinomyces
Mycoplasma hominis
Culture interpretation is dependent on - .....ANSWER...
✔✔ Complete clinical picture (H/P, SSX. Labs, etc)
Method of collection
, 4|Page
Gram stain results
Cellular evidence
Broad spectrum ABX - .....ANSWER... ✔✔ Promotes
resistance to both normal and pathogenic flora (Use if
cause unknown)
Narrow spectrum - .....ANSWER... ✔✔ Confines
resistance to fewer organisms
Therapeutic considerations of ABX therapy -
.....ANSWER... ✔✔ Is infection present
Use narrowest spectrum, least toxic, least invasive, and
least expensive medication thats most effective.
Interventional concepts of ABX therapy - .....ANSWER...
✔✔ Observe w/o ABX
Prophylactic (Dental work w/ artifical heart valve)
Empiric Therapy (Awaiting cultures)
Specific Therapy (Based on cultures)
