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CEN PRACTICE EXAM 1 QUESTIONS AND ANSWERS
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CEN PRACTICE EXAM 1 QUESTIONS ANDANSWERS
A. The use of supplemental oxygen in normoxic patients has not been established. In patients with
potential coronary artery syndrome, withholding of additional supplemental oxygen should be
considered for those in the prehospital or in-patient hospital setting and the emergency department.
Correct Answer: A patient presents to the emergency department with chest pain and diaphoresis,
and denies dyspnea. Vital signs are BP 148/70 mm Hg, HR 72 beats/minute, RR 18 breaths/minute,
Sp02 98% on room air. Breath sounds are clear and equal. rlhe electrocardiogram shows an inferior
wall ST segment 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
C. Chest pain that radiates to both shoulders has a likelihood ratio of 7.1, and pain that radiates to the
right shoulder has a stronger likelihood ratio of 2.9 of predicting acute COronary syndro compared
with pain that radiates only to the left shoulder. Correct Answer: A patient complains of chest pain,
dyspnea, and diaphoresis. Which of the following assessment factors would indicate a possible
diagnosis of acute coronary syndrome?
A. Pleuritic chest pain
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 palpation
D. Adrenal gland stimulation causes the adrenals to release two catecholamines: epinephrine and
norepinephrine. Epinephrine increases heart rate and peripheral vasoconstriction and triggers
glycogenolysis. Correct Answer: Whichofthefollowinghuman compensatorymechanisms to the
presence ofshocktriggersglycogenolysis?
A. Chemoreceptor activation
B. Clotting cascade activation
C. Cerebral autoregulation stimulation
D. Adrenal gland stimulation
D. Patients with Ehler—Danlos syndrome may be identified by hypermobile joints and skin that is
hyper-extensible, has a soft velvety-like appearance, is fragile, and tears or bruises easily. Ehler—
Danlos syndrome is a connective tissue disorder that places patients at risk for the presence of aortic
aneurysm and dissection. Correct Answer: A patient presents to the emergency department with
abdominal pain and "ripping" back pain. Which condition places the patient at risk for abdominal
aortic dissection?
A. Down syndrome
B. Romano—Ward syndrome
C. Jervell and Lange-Nielsen syndrome
D. Ehler—Danlos syndrome
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