COMPREHENSIVE QUESTIONS AND
VERIFIED ANSWERS GRADED A+ | 100%
PASS | 2025 UPDATE!
A 42-year-old woman presents to the emergency department with
complaints of fatigue, shortness of breath, back pain and nausea. A 12-
lead ECG is obtained and shows ST-segment depression in leads II, III,
and aVF and intermittent runs of nonsustained ventricular tachycardia.
Cardiac serum markers are elevated. These findings suggest which
condition?
High-risk non-ST-segment elevation ACS (NSTE-ACS)
Low-risk non-ST-segment elevation ACS (NSTE-ACS)
Intermittent-risk non-ST-segment elevation ACS (NSTE-ACS)
ST-segment elevation myocardial infarction (STEMI) - ✔✔✔ Correct
Answer > High-risk non-ST-segment elevation ACS (NSTE-ACS)
The 12-lead ECG findings of ST-segment depression in three contiguous
leads along with elevated cardiac serum biomarkers are consistent with
high-risk non-ST-segment elevation ACS (NSTE-ACS). The presence of
intermittent runs of ventricular tachycardia also places this patient at
high risk. In ST-segment elevation myocardial infarction (STEMI),
cardiac serum markers would be elevated, but this patient's ECG
,findings are not consistent with STEMI. Patients with intermediate- or
low-risk NSTE-ACS show nondiagnostic ST-segment or T-wave changes
on ECG, or no changes at all.
A patient in cardiac arrest experiences return of spontaneous
circulation. As part of post-cardiac arrest care, the patient is receiving
mechanical ventilation at an initial rate of 10 breaths/min and a
fraction of inspired oxygen (FiO2) of 0.30. Which finding(s) would
indicate the need for change in the ventilator settings to optimize the
patient's ventilation and oxygenation?
SaO2 96%
SaO2 90%
PaCO2 48 mmHg
ETCO2 55 mmHg
ETCO2 40 mmHg - ✔✔✔ Correct Answer > SaO2 90%
PaCO2 48 mmHg
ETCO2 55 mmHg
Mechanical ventilation should be started at a rate of 10 breaths per
minute and adjusted as necessary to keep carbon dioxide levels in
physiologic range (PaCO2 between 35 and 45 mmHg or monitored
,using ETCO2). The minimum fraction of inspired oxygen necessary to
maintain an SaO2 of 94% to 99% is used.
A patient with STEMI is experiencing chest pain that is refractory to
sublingual nitroglycerin. Intravenous nitroglycerin is prescribed. When
administering this medication, it would be titrated to maintain which
systolic blood pressure?
60 mmHg
70 mmHg
80 mmHg
90 mmHg - ✔✔✔ Correct Answer > 90 mmHg
In patients with STEMI, IV nitroglycerin may be used when chest pain or
discomfort is recurrent or refractory to nitroglycerin administered
sublingually or by spray. The IV nitroglycerin should be titrated to
maintain a systolic blood pressure of 90 mmHg or more.
After cardiac arrest and successful resuscitation, the patient has a
return of spontaneous circulation. The patient is unable to follow verbal
commands. Targeted temperature management is initiated. Which
method(s) would be appropriate for the resuscitation team to use?
Administering cool-mist oxygen therapy
Giving an ice-cold IV fluid bolus
, Applying a cool compress to the patient's forehead
Applying cooling blankets to the patient's body
Using an endovascular catheter - ✔✔✔ Correct Answer > Giving
an ice-cold IV fluid bolus
Applying cooling blankets to the patient's body
Using an endovascular catheter
For targeted temperature management, various methods of inducing
hypothermia may be used, including administering an ice-cold IV fluid
bolus (30 mL/kg), using endovascular catheters or applying surface
cooling strategies (e.g., cooling blankets, ice packs).
A patient with suspected acute coronary syndromes (ACS) has a pulse
oximetry reading of 86% and is given supplemental oxygen. The
provider determines that the supplemental oxygen dose is correct
based on which SaO2 level?
87%
89%
93%
100% - ✔✔✔ Correct Answer > 93%