USCIS Research & Evidence-Based Practice 2

Question 1

Which organization publishes the Technical Instructions that civil surgeons must follow when conducting USCIS immigration medical exams?

Accepted Answer

Centers for Disease Control and Prevention (CDC)

Answer

The CDC publishes and updates the Technical Instructions that designated civil surgeons are required to follow for all immigration medical examinations.

Question 2

According to evidence-based practice, which tuberculosis screening method is preferred for BCG-vaccinated immigrants due to its higher specificity?

Accepted Answer

Interferon-gamma release assay (IGRA)

Answer

IGRAs are preferred for BCG-vaccinated individuals because they are not affected by prior BCG vaccination, resulting in fewer false-positive results.

Question 3

The vaccination requirements for immigration medical exams are derived from which primary evidence-based source?

Accepted Answer

CDC Advisory Committee on Immunization Practices (ACIP) recommendations

Answer

ACIP recommendations form the scientific foundation for all vaccination requirements in the immigration medical examination process.

Question 4

Which study design provides the highest level of evidence for evaluating vaccine efficacy?

Accepted Answer

Randomized controlled trial (RCT)

Answer

Randomized controlled trials are considered the gold standard for establishing causation and efficacy because randomization minimizes confounding bias.

Question 5

The CDC updates its Technical Instructions for immigration medical exams primarily based on which factor?

Accepted Answer

New epidemiological evidence and changing disease patterns

Answer

Technical Instructions are revised when new scientific evidence emerges or when disease epidemiology changes in ways that affect public health risk to the United States.

USCIS - Medical Exam Practice Test

USCIS - Medical Exam Practice Test

USCIS Research & Evidence-Based Practice 2