1-100 super exams Flashcards
(187 cards)
Mang Jose lost his vision because of bilateral retinal detachment. Fortunately, his building’s elevator has Braille on the elevator keys so he has no problem getting around. Mang Jose has:
A. Impairment
B. Disability
C. Handicap
D. A and B
E. All of the above
D. A and B
Loss of psychological, physiologic or anatomic function
Impairment
Lack of ability to perform certain activities which is considered normally possible for a human being
Disability
Inability to perform a role in the context of society
Handicap
Patient undergoes a screening test and a tumor was discovered. The screening advanced the time of diagnosis but no true prolongation of life occurs because there are no effective treatments available. What form of bias is this?
A. Length bias
B. Lead time bias
C. Information bias
D. Recall bias
E. Selection bias
B. Lead time bias
Window period between the time the cancer can be detected and the time it will become clinically apparent is short. Screening tests are more effective in slowly growing tumors.
Length bias
Screening advances time of diagnosis but no true prolongation of life occurs because survival for persons who are screened and those who are not is the same
Lead time bias
Systemic difference in the way data are collected from exposure or the outcome
Information bias
One form of information bias and refers to what one may remember from exposure
Recall bias
Inclusion of a subject in a study group is linked to the exposure of interest
Selection bias
The country of birth is an example of what measurement scale?
A. Dichotomous
B. Nominal
C. Ordinal
D. Interval
E. Ratio
B. Nominal
Only 2 possible values (male/female, dead/alive, cured/not cured)
Dichotomous
More than 2 possible values but no intrinsic ordering
Nominal variable
Intrinsically ordered but not in a quantitative way (good-better-best, always-sometimes-never)
Ordinal variable
Real numerical units but without a clear zero point (temperature, year of birth)
Interval
Measurements in relation to a clear zero point (age, metric system)
Ratio
Screening for hypertension is an example of which level of prevention?
A. Primary
B. Secondary
C. Tertiary
D. Primary and Secondary
E. Primary and Tertiary
D. Primary and Secondary
Before disease occurs
Primary
Before symptoms occur but already with disease
Secondary
Symptoms and disease already occured
Tertiary
A researcher is conducting a study on the effects of exposure to arsenic and the development of skin cancer. He takes a group of patients with disease and compares them with case matched patients without the disease. The frequency of arsenic exposure is compared between the 2. Which of the following type of study is this?
A. Ecologic study
B. Cross sectional study
C. Case control study
D. Prospective Cohort
E. Retrospective Cohort
C. Case control study
Subjects are initially divided according to presence or absence of disease. Outcome is analyzed first, then from there exposure is determined.
Case control
Subjects are initially divided according to presence or absence of exposure. Exposure is analyzed first, then from there outcome is determined.
Cohort
If the outcome has not yet occurred, it’s a _______________ (but exposure definitely has occurred already cause remember that’s how you are gonna group the patients).
prospective cohort