AND ANSWERS 100% CORRECT!!
, BEST describes which of the following chronic obstructive pulmonary diseases? -
ANSWER Asthma is a complex disease with airway inflammation being a key
component. Episodes of acute inflammation resulting from viral or allergen exposures
may result in further cycles of inflammation that contribute over time to airway
remodeling.
What factor affects the work of breathing? - ANSWER Elastic Recoil Force
Which condition is described as irreversible airway dilation due to the destruction of lung
properties? - ANSWER Bronchiectasis
An irreversible dilation of one or more bronchi with chronic inflammation and infection is
characterized by which of the following lung diseases? - ANSWER Bronchiectasis
In a patient with decreased quantity of hemoglobin per unit volume of blood, which of
the following pulmonary tests would be MOST likely to be recorded as abnormal? -
ANSWER Diffusing capacity of the lung (DLCO)
DLCO is the amount of gas entering the pulmonary blood flow per unit of time and is
relative to the difference between the partial pressures of the gas in the alveoli and in
the pulmonary blood. Three key factors causing abnormal DLCO are decreased
quantity of hemoglobin, increased thickness of the alveolar-capillary membrane, and
decreased functional surface area available for diffusion.
What is the main purpose of the flow volume loop in pulmonary function testing? -
ANSWER Determine peak flow rate
Which of the following aspects of pulmonary ventilation leads to the requirement of
increased transpulmonary pressure for a given volume of air in patients with restrictive
lung disease? - ANSWER Decreased lung compliance
As lung tissue compliance diminishes or becomes stiffer, a greater transpulmonary
pressure is required to expand the lung for a given volume of air.Low chest wall
compliance limits thoracic expansion. Decreased IRV and increased work of breathing
are a result of the higher pressures.
What is the minimum age a child can perform pulmonary function tests reliably -
ANSWER 6 (bellini)
Which of the following abnormal findings would be MOST likely in a chest radiograph of
a patient with moderate to severe chronic obstructive pulmonary disease? - ANSWER
The radiograph of a patient with moderate to severe COPD will show widened