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Medical Tests CEN Exam Questions
Certified Emergency Nurse (Page 6 )

Updated On: 15-Feb-2026
Page 6 of 40
PDF with 195 Questions

What is the accurate procedure for performing a confrontational peripheral vision test?

  1. Both examiner and patient cover the same eye and stare at each other while an object is brought into
    the line of sight.
  2. Examiner and patient cover opposite eyes and stare at each other while an object is brought into the line of sight.
  3. The patient is asked to discriminate numbers from a chart composed of colored dots.
  4. The room is darkened and the patient is asked to identify colored blocks and shapes when they appear in the visual field.

Answer(s): B

Explanation:

The examiner and the patient cover the opposite eyes and stare at each other while an object is brought into the line of sight. This test assumes that the examiner has normal vision. The patient indicates when they can see the object. This tests nasal, superior, temporal and inferior visual fields.



Which of the following would the nurse do when performing an otoscopic exam on a patient?

  1. Pull the pinna up and back.
  2. Pull the earlobe down and back.
  3. Use the smallest speculum available.
  4. Tilt the patients head forward and down.

Answer(s): A

Explanation:

The nurse would pull the pinna up and back before inserting the speculum, holding the head slightly away and holding the otoscope upside down like a large pen. The other three options are incorrect.



Your patient is scheduled to go for cataract surgery. What nursing diagnosis should you include in the patients plan of care?

  1. Self care deficit
  2. Imbalanced nutrition
  3. Disturbed sensory perception
  4. Anxiety

Answer(s): C

Explanation:

Disturbed sensory perception should be included in this patient's plan of care. The patient's vision would be disturbed related to lens extraction and replacement. The other nursing diagnoses may be appropriate for this patient, but are not relevant to cataract surgery.



What clinical manifestations would you see if your patient had cataracts?

  1. Eye pain
  2. Floating spots
  3. Blurred vision
  4. Diplopia

Answer(s): C

Explanation:

Blurred vision is a clinical manifestation of cataracts. The patient may also exhibit decreased color perception. All other signs are not signs of cataracts.



What type of eye drops would be ordered for the patient who is being prepared for cataract surgery?

  1. Osmotic diuretic
  2. Miotic agent
  3. Mydriatic medication
  4. Thiazide diuretic

Answer(s): C

Explanation:

A mydriatic medication would be ordered for the patient who is being prepared for cataract surgery. This will produce mydriasis and dilation of the pupil. It will also constrict blood vessels.






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