AHN 577 ID TEST EXAM QUESTIONS AND CORRECT ANSWERS
|2026/2027 UPDATED |GUARANTEED PASS.
Osteomyelitis organisms - Answer -S. Aureus
Coag neg staph
Osteomyelitis risk factors - Answer -DM wounds in ft
Long/bone vertebrae injury:
- Loose vascularity (sequestered)
- No blood born defenses
- Susceptible to infection
- Difficult to deliver ABX
Osteomyelitis DX - Answer -MRI
Culture open site or surgical bone biopsy
Osteomyelitis TX - Answer -Ortho consult
Drain (if not effective = chronic)
ABX based on MRI and cultures
May require months of therapy
C. Diff organisms - Answer -Anaerobic gram + spore-forming, bacillus
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,C. Diff cause - Answer -ABX associated colitis w/ toxin release (Clinda, FQ, cephalosporins)
C. Diff risk factors - Answer -ABX, > 65 yoa
Hospitalization or severe illness.
C. diff symptoms - Answer -colitis w/ diarrhea or fulminant colitis
Colitis w/ diarrhea - Answer -Water, foul smelling diarrhea
Abd pain/cramping
Fever, anorexia
Nausea, Malaise
Hematochezia (vomit blood)
Fulminant colitis - Answer -Profuse diarrhea
Diffuse abd pain
Fever, marked leukocytosis
Shock - acidosis/hypotension
Renal failure
Cause: clinda
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,C. diff dx - Answer -Suspect if:
> 3 diarrhea stools in Q24H
Ileus + risk factors
Stool cultures x3
CT abd/pelvis w/ contrast
Endoscopy
CBC w/ diff and chem panel
C. diff tx - Answer -DC ABX
Lactobacillus (probiotic)
Start Metronidazole for mild
Vanc + metronidazole for severe (10-14 days)
Fecal Microbiota transplants
Common cause of surgical site infections - Answer -Failure of antiseptic techniques
Severity of illness
Type of surgery
Length of surgery
Commodities
Extremities of age
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, Steroids
Other infected sites
SLE SSX - Answer -- Joint symptoms w/ or w/o synovitis
- Fever, malaise, weight loss, and anorexia
- Skin lesions (malar or discoid rash)
- Oral/nasopharyngeal ulcers
- HF from myocarditis, HTN, Arrhythmias, and mesenteric vasculitis
- Pericarditis, pleural effusion, pleurisy, pneumonia, restrictive lung dz
- Glomerulonephritis & Chronic kidney dz
- Abd pain (postprandial), ilieus and peritonitis
- Cognitive impairment, psychosis, depression, neuropathies, strokes, and seizures.
SLE DX - Answer -S. antinuclear antibody (ANA titers < 1:160 = false +)
Anemia (hgb < 12)
Leukopenia (WBC < 4,000)
+ Anticardiolipin antibody test
+ Coombs test
Proteinuria, Hematuria
Antibody to native DNA or Sm
False + serology for syphilis
Thrombocytopenia < 100,000
Antiphospholipid antibodies
Hypocomplementemia
4|Page
|2026/2027 UPDATED |GUARANTEED PASS.
Osteomyelitis organisms - Answer -S. Aureus
Coag neg staph
Osteomyelitis risk factors - Answer -DM wounds in ft
Long/bone vertebrae injury:
- Loose vascularity (sequestered)
- No blood born defenses
- Susceptible to infection
- Difficult to deliver ABX
Osteomyelitis DX - Answer -MRI
Culture open site or surgical bone biopsy
Osteomyelitis TX - Answer -Ortho consult
Drain (if not effective = chronic)
ABX based on MRI and cultures
May require months of therapy
C. Diff organisms - Answer -Anaerobic gram + spore-forming, bacillus
1|Page
,C. Diff cause - Answer -ABX associated colitis w/ toxin release (Clinda, FQ, cephalosporins)
C. Diff risk factors - Answer -ABX, > 65 yoa
Hospitalization or severe illness.
C. diff symptoms - Answer -colitis w/ diarrhea or fulminant colitis
Colitis w/ diarrhea - Answer -Water, foul smelling diarrhea
Abd pain/cramping
Fever, anorexia
Nausea, Malaise
Hematochezia (vomit blood)
Fulminant colitis - Answer -Profuse diarrhea
Diffuse abd pain
Fever, marked leukocytosis
Shock - acidosis/hypotension
Renal failure
Cause: clinda
2|Page
,C. diff dx - Answer -Suspect if:
> 3 diarrhea stools in Q24H
Ileus + risk factors
Stool cultures x3
CT abd/pelvis w/ contrast
Endoscopy
CBC w/ diff and chem panel
C. diff tx - Answer -DC ABX
Lactobacillus (probiotic)
Start Metronidazole for mild
Vanc + metronidazole for severe (10-14 days)
Fecal Microbiota transplants
Common cause of surgical site infections - Answer -Failure of antiseptic techniques
Severity of illness
Type of surgery
Length of surgery
Commodities
Extremities of age
3|Page
, Steroids
Other infected sites
SLE SSX - Answer -- Joint symptoms w/ or w/o synovitis
- Fever, malaise, weight loss, and anorexia
- Skin lesions (malar or discoid rash)
- Oral/nasopharyngeal ulcers
- HF from myocarditis, HTN, Arrhythmias, and mesenteric vasculitis
- Pericarditis, pleural effusion, pleurisy, pneumonia, restrictive lung dz
- Glomerulonephritis & Chronic kidney dz
- Abd pain (postprandial), ilieus and peritonitis
- Cognitive impairment, psychosis, depression, neuropathies, strokes, and seizures.
SLE DX - Answer -S. antinuclear antibody (ANA titers < 1:160 = false +)
Anemia (hgb < 12)
Leukopenia (WBC < 4,000)
+ Anticardiolipin antibody test
+ Coombs test
Proteinuria, Hematuria
Antibody to native DNA or Sm
False + serology for syphilis
Thrombocytopenia < 100,000
Antiphospholipid antibodies
Hypocomplementemia
4|Page
