NR 503 MIDTERM EXAM LATEST 2023-2024/NR503 MIDTERM EXAM QUESTIONS AND CORRECT ANSWERS| AGRADE
Question 1 The population of a city on February 15, 2005, was 36,600. The city has a passive surveillance system that collects hospital and private physician reports of influenza cases every month. During the period between January 1 and April 1, 2005, 2,200 new cases of influenza occurred in the city. Of these cases, 775 persons were ill with influenza according to surveillance reports on April 1, 2005. The monthly incidence rate of active cases of influenza for the 3-month period was:
4 per 1,000 population
17 per 1,000 population
20 per 1,000 population
39 per 1,000 population
130 per 1,000 population
Question 2 What would be the effect on age-specific incidence rates of uterine cancer if women with hysterectomies were excluded from the denominator of incidence calculations assuming that most women who have had hysterectomies are older than 50 years of age.
The rates in all age groups would remain the same.
Only rates in women older than 50 years of age would tend to decrease.
Rates in women younger than 50 years would increase compared to women older than 50 years of age.
Rates would increase in women older than 50 years of age but may decrease in younger women as they get older.
It cannot be determined whether the rates would increase or decrease.
Question 3 The ability of a single person to remain free of clinical illness following exposure to an infectious agent is known as:
Hygiene Vaccination Herd immunity Immunity Latency
Question 4 Which of the following reasons can explain why a person who did not consume the infective food item got sick?
They were directly exposed to persons who did eat the infective food item Diarrhea is a general
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