COMLEX Level 2 biostats + ethics LATEST VERSION
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A
If you want to know if geographical location affects infant mortality rate but most
variation in infant mortality is predicted by socioeconomic status, then socioeconomic
status is a _____. - CORRECT ANSWER Confounding variable/factor
The proportion of people who have the disease and test positive is known as the ___. -
CORRECT ANSWER sensitivity
Sensitive tests have few false negatives and are used to rule ___ a disease. -
CORRECT ANSWER Out (i.e. PPD test)
Chronic diseases such as SLE. Higher prevalence or incidence? - CORRECT
ANSWER Higher prevalence
Epidemics such as influenza. Higher prevalence or incidence? - CORRECT
ANSWER Higher incidence
Incidence or prevalence: Cross-sectional study. - CORRECT ANSWER
Prevalence
Incidence or prevalence: Cohort study. - CORRECT ANSWER Incidence and
prevalence
Incidence or prevalence: Case-control study. - CORRECT ANSWER Neither.
A test that consistently gives identical wrong results is ___ reliability/precision and ___
validity/accuracy. - CORRECT ANSWER high, low
An ___ ratio is an estimate of relative risk when the disease prevalence is low. -
CORRECT ANSWER Odds
What is the difference in risk in the exposed and unexposed groups called? -
CORRECT ANSWER Attributable risk
The most common cancer in men is ___. - CORRECT ANSWER prostate cancer
, Most common cause of cancer death in men is ___. - CORRECT ANSWER lung
cancer
What is the percentage of cases within 1, 2, and 3 standard deviations of the mean? -
CORRECT ANSWER 68%; 95.4%; 99.7%
Birth rate is number of live births per ___ in 1 year. - CORRECT ANSWER 1000
Death rate is number of deaths per ___ in 1 year. - CORRECT ANSWER 1000
Neonatal mortality rate is the number of deaths from births to ___ days per 1000 live
births in 1 year. - CORRECT ANSWER 28
Infants mortality rate is the number of deaths from births to ___ year per 1000 live births
in 1 year. - CORRECT ANSWER 1
Maternal mortality rate is the number of deaths during pregnancy to ___ days
postpartum per 100,000 live births in 1 year. - CORRECT ANSWER 42
True or False: Once patients sign a statement giving consent, they must continue
treatment. - CORRECT ANSWER False, patients may change their minds at any
time (exceptions to the requirment of informed consent include emergency situations
and patients without decision-making capacity)
A 15 year old pregnant girl requires hospitalization for preeclampsia. Is parental consent
required? - CORRECT ANSWER No, parental consent is not necessary for the
medical treatment of pregnant minors
Can a doctor refer a patient for an MRI at a facility he/she owns? - CORRECT
ANSWER No, because conflict of interest
Involuntary psychiatric hospitalizationcan be undertaken for which three reasons? -
CORRECT ANSWER (1) danger to self (2) danger to others (3) The patient is
gravely disabled
True or False: It is more difficult to justify the withdrawal of futile care that to have
withheld the treatment in the first place. - CORRECT ANSWER False, withdrawing
a nonbeneficial treatment is ethically similar to withholding a nonindicated one.
Can a mother can refuse to allow her child to be vaccinated? - CORRECT ANSWER
Yes (parent has the right to refuse treatment for his/her child as long as it dose not pose
a serious threat to the well-being of the child)
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS-
LATEST UPDATE 2025 GRADED A
If you want to know if geographical location affects infant mortality rate but most
variation in infant mortality is predicted by socioeconomic status, then socioeconomic
status is a _____. - CORRECT ANSWER Confounding variable/factor
The proportion of people who have the disease and test positive is known as the ___. -
CORRECT ANSWER sensitivity
Sensitive tests have few false negatives and are used to rule ___ a disease. -
CORRECT ANSWER Out (i.e. PPD test)
Chronic diseases such as SLE. Higher prevalence or incidence? - CORRECT
ANSWER Higher prevalence
Epidemics such as influenza. Higher prevalence or incidence? - CORRECT
ANSWER Higher incidence
Incidence or prevalence: Cross-sectional study. - CORRECT ANSWER
Prevalence
Incidence or prevalence: Cohort study. - CORRECT ANSWER Incidence and
prevalence
Incidence or prevalence: Case-control study. - CORRECT ANSWER Neither.
A test that consistently gives identical wrong results is ___ reliability/precision and ___
validity/accuracy. - CORRECT ANSWER high, low
An ___ ratio is an estimate of relative risk when the disease prevalence is low. -
CORRECT ANSWER Odds
What is the difference in risk in the exposed and unexposed groups called? -
CORRECT ANSWER Attributable risk
The most common cancer in men is ___. - CORRECT ANSWER prostate cancer
, Most common cause of cancer death in men is ___. - CORRECT ANSWER lung
cancer
What is the percentage of cases within 1, 2, and 3 standard deviations of the mean? -
CORRECT ANSWER 68%; 95.4%; 99.7%
Birth rate is number of live births per ___ in 1 year. - CORRECT ANSWER 1000
Death rate is number of deaths per ___ in 1 year. - CORRECT ANSWER 1000
Neonatal mortality rate is the number of deaths from births to ___ days per 1000 live
births in 1 year. - CORRECT ANSWER 28
Infants mortality rate is the number of deaths from births to ___ year per 1000 live births
in 1 year. - CORRECT ANSWER 1
Maternal mortality rate is the number of deaths during pregnancy to ___ days
postpartum per 100,000 live births in 1 year. - CORRECT ANSWER 42
True or False: Once patients sign a statement giving consent, they must continue
treatment. - CORRECT ANSWER False, patients may change their minds at any
time (exceptions to the requirment of informed consent include emergency situations
and patients without decision-making capacity)
A 15 year old pregnant girl requires hospitalization for preeclampsia. Is parental consent
required? - CORRECT ANSWER No, parental consent is not necessary for the
medical treatment of pregnant minors
Can a doctor refer a patient for an MRI at a facility he/she owns? - CORRECT
ANSWER No, because conflict of interest
Involuntary psychiatric hospitalizationcan be undertaken for which three reasons? -
CORRECT ANSWER (1) danger to self (2) danger to others (3) The patient is
gravely disabled
True or False: It is more difficult to justify the withdrawal of futile care that to have
withheld the treatment in the first place. - CORRECT ANSWER False, withdrawing
a nonbeneficial treatment is ethically similar to withholding a nonindicated one.
Can a mother can refuse to allow her child to be vaccinated? - CORRECT ANSWER
Yes (parent has the right to refuse treatment for his/her child as long as it dose not pose
a serious threat to the well-being of the child)
