
Clinicomm set 2
Authored by Devika undefined
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University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
In a hospital outbreak investigation of carbapenem-resistant Klebsiella pneumoniae, which study design best determines the risk factors for colonization among ICU patients while controlling for confounders?
Cross-sectional
Case-control with matching
Prospective cohort
Ecological
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
During an RCT assessing a new rapid sepsis screening tool, interim analysis shows borderline benefit (p=0.049). Which approach avoids inflated Type I error?
Original p-value
Bonferroni
Sequential boundaries (O'Brien-Fleming)
Stop now
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Non-inferiority trial of two HAP regimens: CI for difference in cure rates lies entirely within the non-inferiority margin. Interpretation?
Inferior
Non-inferior
Superior
Inconclusive
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Early discharge protocol using troponin: NPV is 99% in low-risk chest pain. What most affects NPV?
Sensitivity
Specificity
Disease prevalence
Sample size
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Hospital hand hygiene observations: Hawthorne effect will most likely…
Inflate observed compliance
Deflate
No effect
Increase random error
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Oncology survival analysis violates proportional hazards. Best alternative?
Log-rank only
Cox with time-varying covariates/stratified Cox
Paired t-test
Ignore
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
ICU sepsis bundle trial: RR=0.85 (95% CI: 0.60-1.02).
Statistically significant
Clinically meaningful but not statistically significant
No relevance
Both
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