NAECB Signs & Symptoms Of Asthma 4

Question 1

Which symptom is described by patients as 'chest tightness' in asthma and is caused by:

Accepted Answer

Bronchoconstriction increasing airway resistance and triggering sensory nerve activation

Answer

Chest tightness in asthma results from bronchoconstriction stimulating sensory C-fibers in airway walls, creating a sensation of constriction or pressure.

Question 2

Exercise-induced bronchoconstriction (EIB) symptoms typically occur:

Accepted Answer

5–10 minutes after stopping strenuous exercise

Answer

EIB symptoms typically begin 5–10 minutes after stopping exercise as airway cooling and drying trigger mast cell mediator release and bronchoconstriction.

Question 3

Hypoxemia in acute severe asthma is PRIMARILY caused by:

Accepted Answer

Ventilation-perfusion (V/Q) mismatch from uneven airway obstruction

Answer

V/Q mismatch occurs when obstructed airways lead to underventilated but still-perfused lung units, resulting in hypoxemia during acute asthma.

Question 4

Which respiratory pattern is characteristic of a moderate asthma exacerbation?

Accepted Answer

Tachypnea with prolonged expiratory phase

Answer

Moderate asthma exacerbations produce tachypnea with a prolonged expiratory phase due to air trapping and expiratory flow limitation.

Question 5

A patient with asthma who is speaking in phrases rather than full sentences during an acute attack is classified as having:

Accepted Answer

Moderate exacerbation

Answer

The ability to speak in phrases but not full sentences indicates a moderate asthma exacerbation; inability to speak indicates severe exacerbation.

NAECB Exam Practice Test

NAECB Exam Practice Test

NAECB Signs & Symptoms Of Asthma 4