ACLS Final Exam latest updated version 500
QUESTIONS AND CORRECT DETAILED
ANSWERS
Assessment of a patient reveals an ETCO2 level of 55 mmHg and an
arterial oxygen saturation (SaO2) level of 88%. The provider would
interpret these findings as indicative of which condition?
,An SaO2 level of less than 90% (PaO2 of less than 50 mmHg)
accompanied by ETCO2 values greater than 50 mmHg is indicative of
respiratory failure.
A healthcare provider initiates ventilations to ensure adequate
breathing and oxygenation. While ventilations are being performed,
capnography is established to evaluate the adequacy of the
ventilations. The healthcare provider determines that ventilations are
adequate based on which end-tidal carbon dioxide (ETCO2) value?
, End-tidal carbon dioxide values in the range of 35 to 45 mmHg confirm
adequacy of ventilation.
A patient comes to the emergency department complaining of
palpitations and "some shortness of breath." Cardiac monitoring is
initiated and reveals the following ECG rhythm strip. The provider
interprets this strip as indicating which arrhythmia?
In atrial flutter, atrial contraction occurs at such a rapid rate that
discrete P waves separated by a flat baseline cannot be seen on the
strip. Instead, the baseline continually rises and falls, producing the
"flutter" waves. In leads II and III, the flutter waves may be quite
prominent, creating a "sawtooth" pattern. Because of the volume of
atrial impulses, the AV node allows only some of the impulses to pass
through to the ventricles. In atrial flutter, a 2:1 ratio is the most common
(i.e., for every two flutter waves, only one impulse passes through the
AV node to generate a QRS complex). Ratios of 3:1 and 4:1 are also
frequently seen.
A person suddenly collapses while sitting in the sunroom of a
healthcare facility. A healthcare provider observes the event and
hurries over to assess the situation. The healthcare provider performs
which assessment first?
A systematic approach to assessment is necessary. The healthcare
provider should first perform a rapid assessment. A rapid assessment
is a quick visual survey to ensure safety, to form an initial impression
about the patient's condition, and to check for responsiveness,
breathing and a pulse if the patient appears to be unresponsive. This
QUESTIONS AND CORRECT DETAILED
ANSWERS
Assessment of a patient reveals an ETCO2 level of 55 mmHg and an
arterial oxygen saturation (SaO2) level of 88%. The provider would
interpret these findings as indicative of which condition?
,An SaO2 level of less than 90% (PaO2 of less than 50 mmHg)
accompanied by ETCO2 values greater than 50 mmHg is indicative of
respiratory failure.
A healthcare provider initiates ventilations to ensure adequate
breathing and oxygenation. While ventilations are being performed,
capnography is established to evaluate the adequacy of the
ventilations. The healthcare provider determines that ventilations are
adequate based on which end-tidal carbon dioxide (ETCO2) value?
, End-tidal carbon dioxide values in the range of 35 to 45 mmHg confirm
adequacy of ventilation.
A patient comes to the emergency department complaining of
palpitations and "some shortness of breath." Cardiac monitoring is
initiated and reveals the following ECG rhythm strip. The provider
interprets this strip as indicating which arrhythmia?
In atrial flutter, atrial contraction occurs at such a rapid rate that
discrete P waves separated by a flat baseline cannot be seen on the
strip. Instead, the baseline continually rises and falls, producing the
"flutter" waves. In leads II and III, the flutter waves may be quite
prominent, creating a "sawtooth" pattern. Because of the volume of
atrial impulses, the AV node allows only some of the impulses to pass
through to the ventricles. In atrial flutter, a 2:1 ratio is the most common
(i.e., for every two flutter waves, only one impulse passes through the
AV node to generate a QRS complex). Ratios of 3:1 and 4:1 are also
frequently seen.
A person suddenly collapses while sitting in the sunroom of a
healthcare facility. A healthcare provider observes the event and
hurries over to assess the situation. The healthcare provider performs
which assessment first?
A systematic approach to assessment is necessary. The healthcare
provider should first perform a rapid assessment. A rapid assessment
is a quick visual survey to ensure safety, to form an initial impression
about the patient's condition, and to check for responsiveness,
breathing and a pulse if the patient appears to be unresponsive. This
