Deck 42: Drugs Used to Treat Glaucoma and Other Eye Disorders

Question 1

Which statement(s)about aqueous humor is/are true?

A) Bathes and feeds the lens, posterior surface of the cornea, and iris
B) Maintains the iris color
C) Drains out of the eye through drainage channels located near the junction of the cornea and sclera
D) Manufactures fluid for tear production
E) Flows out of the canal of Schlemm into the venous system of the eye

Answer 1

Bathes and feeds the lens, posterior surface of the cornea, and iris
Drains out of the eye through drainage channels located near the junction of the cornea and sclera
Flows out of the canal of Schlemm into the venous system of the eye

Question 2

The nurse is assisting with applanation tonometry on a patient at the ophthalmologist's office.The results indicate the patient's reading to be 15 mm Hg.The nurse interprets this result as _____ IOP.

A) decreased
B) normal
C) slightly increased
D) severely increased

Answer 2

normal

Question 3

A factory worker had a chemical inadvertently splashed into his right eye.An eyewash was used at the work site.Which nursing assessment(s)would be important to include?

A) Visual acuity
B) Presence of pain, blurred or halo vision, or lack of vision
C) Type of chemical
D) Presence of nystagmus
E) Presence of contacts or use of eyeglasses

Answer 3

Visual acuity
Presence of pain, blurred or halo vision, or lack of vision
Type of chemical
Presence of contacts or use of eyeglasses

Question 4

What is the purpose of administering a cycloplegic agent?

A) Facilitate examination of the eye
B) Facilitate surgery on the eye
C) Cause pupillary dilation
D) Paralyze the ciliary muscle
E) Decrease the production of aqueous humor

Question 5

Which medication is used to produce miosis following a diagnostic procedure?

A) Pilocarpine (Pilocar)
B) Mannitol (Osmitrol)
C) Atropine (Isopto Atropine)
D) Epinephrine (EpiPen)

Question 6

What information will the nurse include when instructing a patient on the correct method of instilling eyedrops?

A) With an infection, prevent cross-contamination and use a separate source of medication and droppers for each eye.
B) Wash hands before and after administration.
C) Place the lid on the surface area as instructed to avoid contamination.
D) Never touch the tip of the dropper or opening of the ointment container.
E) Wipe eye from the outer to inner canthus.

Question 7

The nurse is preparing a patient for an ophthalmic examination.Which action occurs when the nurse instills eyedrops to produce mydriasis?

A) Drying of tears in the eyes
B) Extreme dilation of the pupil
C) Opening of the canal of Schlemm
D) Paralysis of the ciliary muscle

Question 8

Which is a potential serious adverse effect associated with mannitol (Osmitrol)?

A) Bradycardia
B) Fluid overload
C) Anaphylaxis
D) Fever

Question 9

Which are important teaching points for the nurse to review with a patient recently diagnosed with open-angle glaucoma?

A) The disease will cause damage to the optic disc if left untreated.
B) Symptoms are sudden and painful when the disease begins.
C) Loss of peripheral vision is a common trigger for diagnosis.
D) Total blindness may result if the glaucoma is not treated.
E) Glaucoma is not a serious disease and will cause only mild inconvenience to the patient.
F) Treatment is only necessary when symptoms are bothersome.

Question 10

The nurse is caring for a patient immediately following a right-sided trabeculectomy.When positioning this patient,the nurse will encourage a _____ position.

A) prone
B) right side lying
C) left side lying
D) Trendelenburg

Question 11

The nurse is educating a patient about a newly prescribed cholinergic agent.When relaying common adverse effects of this type of medication,the nurse will include information about

A) conjunctival irritation.
B) headache.
C) salivation.
D) hypotension.
E) bradycardia.

Question 12

What is the action of timolol maleate (Timoptic),a beta-adrenergic blocking agent?

A) Draws aqueous humor from the eye into the circulatory network
B) Increases the production of aqueous humor
C) Increases the outflow of aqueous humor
D) Decreases the production of aqueous humor

Question 13

What information will the nurse include when teaching the patient and family about postoperative care for a trabeculectomy?

A) Use aseptic technique for all dressing changes and medication administration.
B) Place the patient on the operated side.
C) Avoid heavy lifting.
D) Redness in the eye, pain, and swelling are common occurrences after surgery.
E) Avoid straining on defecation.

Question 14

A patient recently diagnosed with glaucoma is to begin drug therapy with carbonic anhydrase inhibitors.For which assessment(s)would the nurse need to contact the health care provider?

A) Electrolyte levels
B) Any signs of gastric symptoms before initiating drug therapy
C) Allergy to sulfonamides
D) Patient history of menopause
E) Elevated IOP levels

Question 15

Which discharge instruction will the nurse include for a patient sent home from the clinic who is taking an adrenergic ophthalmic solution for an acute inflammation?

A) Headaches and eye pain are adverse effects to be reported to the health care provider immediately.
B) Mouth dryness should be reported immediately.
C) Avoid driving or operating machinery until blurring subsides.
D) "Halos" or yellow rings around objects will be seen while taking this medication.

Question 16

Which type of medication would be used to dilate the pupils before an eye examination?

A) Osmotics
B) Adrenergic agent
C) Beta-adrenergic agent
D) Corticosteroid

Question 17

What is the mechanism of action of osmotic agents when used to decrease IOP?

A) Promoting outflow of the aqueous humor into the tear ducts
B) Increasing plasma osmolarity and drawing extracellular fluid into the blood
C) Blocking production of aqueous humor
D) Decreasing viscosity of the tears and allowing fluid to drain away from the eye