ADVANCED LIFE SUPPORT (ALS)
ONLINE SESSION FINAL EXAM 48
QUESTIONS AND ANSWERS
A patient's ECG reveals a narrow QRS complex with a regular rhythm, indicating a narrow-
complex supraventricular tachyarrhythmia. The patient is hemodynamically stable. Which
intervention would be initiated first? - answer Vagal maneuvers
For a patient who is hemodynamically stable and experiencing a narrow-complex
supraventricular tachyarrhythmia, vagal maneuvers are attempted first. If ineffective, adenosine
is given.
A patient's capnogram reveals the following waveform. Which segment would the healthcare
provider interpret as reflecting the beginning of exhalation? - answer A-B
The A-B segment is the respiratory baseline that represents the beginning of exhalation.
A patient experiencing an unstable bradyarrhythmia does not respond to atropine or
transcutaneous pacing. Which intervention would the healthcare provider use next? - answer
Administration of an epinephrine infusion.
Epinephrine or dopamine may be administered to patients with symptomatic bradycardia if
atropine and transcutaneous pacing are not effective.
A patient with a suspected stroke arrives at the emergency department at 7:10 p.m. The stroke
team ensures that a neurologic assessment and brain computed tomography or magnetic
resonance imaging is obtained by which time? - answer 7:30 p.m.
In accordance with National Institute of Neurological Disorders and Stroke guidelines, the stroke
team, emergency physician or other expert must conduct a neurologic assessment and obtain
, computed tomography or magnetic resonance imaging within 20 minutes after the patient's
arrival in the emergency department. That would be 7:30 p.m. for this patient.
A patient in the telemetry unit is stable. Cardiac monitoring indicates the patient has ventricular
tachycardia with a pulse. Further assessment reveals that the corrected QT interval is greater
than 0.46 seconds. Which treatment would be appropriate at this time? - answer Synchronized
cardioversion
For a patient with ventricular tachycardia who is stable, has a pulse and has a corrected QT
interval greater than 0.46 seconds, synchronized cardioversion is the recommended treatment.
A resuscitation team is debriefing following a recent event. A patient experienced cardiac arrest,
and advanced cardiac life support was initiated. The patient required the placement of an
advanced airway to maintain airway patency. Which statement indicates that the team
performed high-quality CPR? - answer "We delivered 1 ventilation every 6 seconds and chest
compressions at a rate of 100 to 120 compressions per minute."
When an advanced airway has been placed in a patient who is in cardiac arrest, compressions
and ventilations are delivered continuously with no interruptions. One provider delivers 1
ventilation every 6 seconds, while the second provider performs compressions at a rate of 100
to 120 compressions per minute.
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? - answer 35 to 45 mmHg
End-tidal carbon dioxide values in the range of 35 to 45 mmHg confirm adequacy of ventilation.
An ECG strip of a patient in the emergency department reveals the following rhythm. Which
feature would the healthcare provider interpret as indicating atrial fibrillation? - answer
Absence of discrete P waves and presence of irregularly irregular QRS complexes.
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