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CEN Online Review 3.0 - Pre Exam questions and answers
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CEN Online Review 3.0 - Pre Exam questions and answers
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CEN Online Review 3.0- Pre Exam questions
and answers
A patient presents to the emergency department with
superficial reddened welts to the hands and upper extremities
incurred after placing his hands and arms into the jellyfish tank
at the local zoo. After irrigating the wounds with normal saline
and removing the tentacles with forceps, application of of
which of the following will provide the best pain management?
A.Fat emollient
B.Pressure bandage
C.Topical antihistamines
D.Acetic acid
Acetic acid: Application of acetic acid (vinegar) may deactivate
the cause of the stinging pain from certain species of jellyfish.
An older adult patient fell in the bathroom last night and was
found on the floor by family this morning. The patient is awake,
confused, and has large ecchymotic areas to the right hip, leg,
,and shoulder. Which of the following clinical manifestation will
the nurse anticipate with this patient?
A.Blood clots in the urine
B.Dysuria
C.Dark brown urine
D.Anuria
Dark brown urine: Prolonged immobilization is a common cause
of rhabdomyolysis. The characteristic sign of rhabdomyolysis is
dark brown urine.
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,Which of the following interventions should be anticipated with
a pinhole wound on the hand from a high pressure paint gun?
A.Surgical exploration and debridement
B.Application of a topical antibiotic
C.Soaking the wound in betadine
D.Application of ice packs to the wound
Surgical exploration and debridement: High pressure grease or
paint gun injuries can be limb threatening. The paint or grease
has most likely been injected into the extremity. Such wounds
require intravenous antibiotics, tetanus immunization, and
surgical exploration and debridement to remove necrotic tissue.
They are at high risk for anaerobic infection.
Which heart block is associated with a lengthening PR interval
until a QRS complex is dropped?
A.First degree
B.Second degree type II
C.Third degree
D.Second degree type I
Second degree type I: also known as Wenckebach, is
characterized by a lengthening PR interval until a QRS is
dropped.
An adult presents to the emergency department complaining of
a low-grade fever, malaise, pain in the joints, and headache for
, the past week. The patient reports hiking in wooded areas
during a recent vacation in the Northeast United States. Upon
physical assessment, a circular, flat, red rash with central
clearing is noted to the left scapular area and local tenderness
upon palpation of the left axillary lymph node. After
confirmatory diagnosis, the emergency nurse anticipates which
course of pharmacologic treatment?
A.Levofloxacin
B.Doxycycline
C.Ceftriaxone
D.Praziquantel
Doxycycline: This presentation is consistent with Lyme disease,
which is treated with oral doxycycline in the early stages of the
disease.
A patient arrives with complaints of shortness of breath and a
history of asthma. The assessment reveals mild tachypnea,
biphasic (expiratory and inspiratory) wheezing, and use of
accessory muscles. Peak expiratory flow is 68% of personal best.
What is the severity of this asthma exacerbation?
A.Severe
B.Moderate
C.Slight
D.Mild
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