Two Infectious Disease Epidemiologists Want to Investigate a New Laboratory

question 13

Multiple Choice

Two infectious disease epidemiologists want to investigate a new laboratory test that identifies TB infections.Dr.Merritt uses the standard test,which has a sensitivity of 80% and a specificity of 90%.Dr.Foundry uses the new laboratory test,which is 90% sensitive and 99% specific.Now,epidemiologists decide to run those two test as sequential tests (two-stage testing) .What is the effect on net sensitivity of sequential tests?

• A) 72%
• B) 80%
• C) 89%
• D) 90%
• E) 98%

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Definitions:

Tend-and-Befriend Response

A behavior pattern where individuals provide care and protection under stressful situations, enhancing group safety and reducing vulnerability.

Fight-or-Flight Response

A physiological reaction to a perceived harmful event, attack, or threat to survival, preparing the body for rapid action.

Alarm Stage

The initial reaction of the body's stress response system, involving the activation of the sympathetic nervous system and the release of stress hormones.

Type A Behavior

A personality trait characterized by high levels of competitiveness, self-imposed stress, impatience, and aggression.