COMLEX Level 2 biostats + ethics Questions And Verified Solutions
4 views 0 purchase
Course
COMLEX
Institution
COMLEX
Bias introduced into a study when a clinician is aware of the patient's treatment type. - Correct Answer Observational bias
Bias introduced when screening detects a diseae earlier and thus lengthens the time from diagnosis to death. - Correct Answer Lead-time bias
If you want to know if g...
COMLEX Level 2 biostats + ethics Questions And Verified
Solutions
Bias introduced into a study when a clinician is aware of the patient's treatment type. - Correct Answer
Observational bias
Bias introduced when screening detects a diseae earlier and thus lengthens the time from diagnosis to
death. - Correct Answer Lead-time bias
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Victoria108. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
