NAECB Environmental Control 5

Question 1

Which of the following is classified as a nonallergenic (irritant) asthma trigger rather than an allergen?

Accepted Answer

Strong perfume or cleaning product fragrances

Answer

Fragrances act as nonspecific airway irritants that can provoke bronchoconstriction without involving an IgE-mediated allergic response.

Question 2

A patient moves from a house to an apartment and reports new-onset asthma symptoms. Which NEW exposure is MOST likely responsible?

Accepted Answer

Shared building ventilation systems that may circulate allergens from other units

Answer

Shared HVAC systems in apartment buildings can distribute allergens and irritants from neighboring units throughout the building.

Question 3

Which factor makes children MORE vulnerable than adults to indoor air pollutant exposure?

Accepted Answer

Children have higher breathing rates and spend more time near the floor where pollutant concentrations are higher

Answer

Children breathe faster and spend more time near the floor—where heavier particles settle—resulting in proportionally greater pollutant exposure than adults.

Question 4

Which recommendation should an asthma educator make about fireplaces and wood-burning stoves?

Accepted Answer

They produce fine particulate matter and carbon monoxide that are significant asthma triggers and should be avoided

Answer

Wood combustion produces fine PM2.5 particles and irritant gases regardless of wood type or containment, making fireplaces a significant asthma trigger.

Question 5

A patient asks whether opening windows improves indoor air quality for asthma control. What is the MOST accurate response?

Accepted Answer

Opening windows is beneficial when outdoor air quality is good but may worsen symptoms during high pollen or pollution days

Answer

Ventilation dilutes indoor pollutants but should be balanced against outdoor air quality, including pollen counts and air quality index readings.

NAECB Exam Practice Test

NAECB Exam Practice Test

NAECB Environmental Control 5