Author Question: Several pathophysiologic mechanisms operating simultaneously may lead to an increased ventilatory ... (Read 23 times)

Chelseaamend · **on:** Jul 16, 2018

Several pathophysiologic mechanisms operating simultaneously may lead to an increased ventilatory rate. These may include all of the following EXCEPT:

a. stimulation of central chemoreceptors.
b. decreased lung complianceincreased ventilatory rate relationship.
c. stimulation of J receptors.
d. pain.

Question 2

Prior to the introduction of exogenous surfactant, with which condition were preterm neonates most likely to develop pulmonary air leak syndrome?

a. Meconium aspiration syndrome (MAS)
b. Respiratory distress syndrome (RDS)
c. Transient tachypnea of the newborn (TTN)
d. Apnea of prematurity

EAN94 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

B
Several pathophysiologic mechanisms operating simultaneously may lead to an increased ventilatory rate: stimulation of peripheral chemoreceptors (hypoxemia), decreased lung complianceincreased ventilatory rate relationship, stimulation of J receptors, pain, anxiety, or fever.

Answer to Question 2

B
Prior to the introduction of exogenous surfactant, pulmonary air leak syndromes commonly occurred in preterm neonates with RDS on mechanical ventilation.