Over the Last 90 Minutes,the Therapist Has Obtained Three Arterial

Over the last 90 minutes,the therapist has obtained three arterial blood samples from an arterial line inserted in a neonate receiving mechanical ventilation and being monitored by capnometry.The PaCO? values were as follows: (1) 47 mm Hg,(2) 46 mm Hg,and (3) 47 mm Hg.How should the therapist evaluate the following capnogram?
B

A) Abrupt disconnection from mechanical ventilation
B) Damped waveform caused by severe airflow obstruction
C) Reduced pulmonary blood flow caused by overdistention of the lungs
D) Secretions partially obstructing the sample line leading to the capnometer