CEN Practice Exam 1
Study online at https://quizlet.com/_5ot3lx
1. A. The use of supplemental oxygen in nor- A patient presents to the emergency de-
moxic patients has not been established. partment with chest pain and diaphore-
In patients with potential coronary artery sis, and denies dyspnea. Vital signs are BP
syndrome, withholding of additional sup- 148/70 mm Hg, HR 72 beats/minute, RR
plemental oxygen should be considered for 18 breaths/minute, Sp02 98% on room air.
those in the prehospital or in-patient hospi- Breath sounds are clear and equal. rlhe elec-
tal setting and the emergency department. trocardiogram shows an inferior wall ST seg-
ment elevation. You anticipate the following
oxygen order.
A. No supplemental oxygen at this time
B. Nasal cannula at 6 L per minute
C. Partial rebreather mask at 10 L per minute
D. Nonrebreather mask at 15 L per minute
2. C. Chest pain that radiates to both shoul- A patient complains of chest pain, dyspnea,
ders has a likelihood ratio of 7.1, and pain and diaphoresis. Which of the following as-
that radiates to the right shoulder has a sessment factors would indicate a possible
stronger likelihood ratio of 2.9 of predict- diagnosis of acute coronary syndrome?
ing acute COronary syndro compared with A. Pleuritic chest pain
pain that radiates only to the left shoulder. B. Positional chest pain
C. Chest pain that radiates to the shoulders,
with pain in the right shoulder worse than
pain in the left shoulder
D. Pain reproducible with chest wall palpa-
tion
3. D. Adrenal gland stimulation causes the Whichofthefollowinghuman compensato-
adrenals to release two catecholamines: rymechanisms to the presence ofshocktrig-
epinephrine and norepinephrine. Epineph- gersglycogenolysis?
rine increases heart rate and peripheral A. Chemoreceptor activation
vasoconstriction and triggers glycogenoly- B. Clotting cascade activation
sis.
1/3
Study online at https://quizlet.com/_5ot3lx
1. A. The use of supplemental oxygen in nor- A patient presents to the emergency de-
moxic patients has not been established. partment with chest pain and diaphore-
In patients with potential coronary artery sis, and denies dyspnea. Vital signs are BP
syndrome, withholding of additional sup- 148/70 mm Hg, HR 72 beats/minute, RR
plemental oxygen should be considered for 18 breaths/minute, Sp02 98% on room air.
those in the prehospital or in-patient hospi- Breath sounds are clear and equal. rlhe elec-
tal setting and the emergency department. trocardiogram shows an inferior wall ST seg-
ment elevation. You anticipate the following
oxygen order.
A. No supplemental oxygen at this time
B. Nasal cannula at 6 L per minute
C. Partial rebreather mask at 10 L per minute
D. Nonrebreather mask at 15 L per minute
2. C. Chest pain that radiates to both shoul- A patient complains of chest pain, dyspnea,
ders has a likelihood ratio of 7.1, and pain and diaphoresis. Which of the following as-
that radiates to the right shoulder has a sessment factors would indicate a possible
stronger likelihood ratio of 2.9 of predict- diagnosis of acute coronary syndrome?
ing acute COronary syndro compared with A. Pleuritic chest pain
pain that radiates only to the left shoulder. B. Positional chest pain
C. Chest pain that radiates to the shoulders,
with pain in the right shoulder worse than
pain in the left shoulder
D. Pain reproducible with chest wall palpa-
tion
3. D. Adrenal gland stimulation causes the Whichofthefollowinghuman compensato-
adrenals to release two catecholamines: rymechanisms to the presence ofshocktrig-
epinephrine and norepinephrine. Epineph- gersglycogenolysis?
rine increases heart rate and peripheral A. Chemoreceptor activation
vasoconstriction and triggers glycogenoly- B. Clotting cascade activation
sis.
1/3
