Question

Excerpt: “Blood tests [for herpes] can be highly unreliable. The kind of test used to diagnose
Lauren, an IgM test, has long been rejected by the Centers for Disease Control and
Prevention but is still used by some clinicians. Meanwhile, the CDC and the US Preventive
Services Task Force concur that the most widely available herpes test, called HerpeSelect, should
not be used to screen asymptomatic people because of its high risk of false positives: Up to 1 in
2 positive tests could be false, according to the USPSTF’s most recent guidelines.”
Based solely on the article, what is the problem with current testing for herpes using the most
widely available test “HerpeSelect”? (Select one)
a. Low sensitivity
b. Low reliability
c. Low negative predictive value
d. Low specificity

employees at Factory A. In 2016, a group of 35,091 employees who worked at the factory from
1968 to 1994 and had cancer followup
data available through 2015 were included in the study.
Asbestos exposure was defined categorically based on whether the employee worked on site
(exposed) or in the management building nearby (unexposed). The incidence rate among those
who worked on site was then compared to the incidence rate among those who did not. Which
type of epidemiologic study design is described above?
a. Crosssectional
study
b. Casecontrol
study
c. Prospective cohort study
d. Retrospective cohort study
e. Clinical trial

Answer 1

Q1. Option B is correct, and crucially applicable As this is the case of ;Low reliability with the symptomatic patients, as there are reported cases of high sensitivity and specificity of this test

Q.2. this is the type of case control study as comparison is based on the the prior exposure related to histories of Asbestos exposure