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What is the prevalence of disease during July?
- A. 3 / 700
- B. 4 / 700
- C. 5 / 700
- D. 8 / 700
Correct Answer: C
Rationale: Prevalence includes all cases present at a given time.
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First step of epidemic investigation?
- A. Preparing case definition
- B. Mapping the epidemic
- C. Confirmation
- D. Searching for the cases
Correct Answer: C
Rationale: The first step in investigating an epidemic is to confirm the existence of the outbreak through verification of cases.
Discuss the possible health effects that have been associated with exposure to electric and magnetic fields and ionizing radiation.
- A. EMF: unclear evidence; Ionizing: cancer risk.
- B. EMF: immediate death; Ionizing: no known risks.
- C. EMF: improved sleep; Ionizing: enhanced mood.
- D. EMF: faster metabolism; Ionizing: increased energy.
Correct Answer: A
Rationale: Evidence linking EMFs to health effects is inconclusive, while ionizing radiation is a well-established carcinogen.
Observation checklist is the................ of data collection
- A. Tool
- B. Method
- C. Manual
- D. Guideline
Correct Answer: A
Rationale: An observation checklist serves as a tool for systematically collecting data during observations.
In supervision the most appropriate word is
- A. Enforcement
- B. Reinforcement
- C. Suggestion
- D. Inspection
Correct Answer: C
Rationale: Supervision involves providing constructive suggestions and guidance.
What is likely to be the best routinely available data source for each of the following kinds of studies?
- A. Hospital discharge survey
- B. Cancer registries
- C. National Health Survey
- D. Disease registries
Correct Answer: B
Rationale: Cancer registries are dedicated to collecting data on cancer incidence and outcomes, offering the most precise information on cancer morbidity.