Which of the Following Cases Is Considered a Positive PPD

question 29

Multiple Choice

Which of the following cases is considered a positive PPD test result with induration 5 mm or larger?

• A) Individuals infected with HIV
• B) Anyone in close contact with a patient newly diagnosed with TB
• C) Patients who have undergone recent organ transplant
• D) Person exposed to or infected with the TB bacillus in the past
• E) All of the above

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Definitions:

FMVSS-121

Federal Motor Vehicle Safety Standards 121, which sets the requirements for air brake systems in heavy-duty vehicles to ensure safety through proper functionality and performance.

System Air Pressure Loss

The decrease in air pressure within a system, often due to leaks or inefficiencies, which can affect system performance.

Tractor-Protection Valve

A safety device in trucks that prevents air loss in the tractor if there's a leak in the trailer, ensuring the tractor's braking system remains functional.