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Flashcards in Pharmacology Deck (13)
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1
Q

How long should bottle of eye solution be kept if it contains preservatives?

A

4 weeks

2
Q

How long should a bottle of eye solution be kept if it does not contain preservatives? Where should it be kept?

A

1 week

keep in fridge

3
Q

Fluroescein

indications

A

orange dye used to detect foreign bodies in the eye as well as abrasions, ulcers and infection, and hepatic dendrites

4
Q

What are two ways fluroescien can be applied?

A

strips

drops

5
Q

What is fluorescein/benoziate?

eyeflur, fluress, flurox

A

topical anesthetic drops and fluorescein

6
Q

What is fluorescein/proparacaine?

flucaine

A

topical anesthetic drops and fluorescein

7
Q

What are the indications for topical anesthetics?

A
  • measurement of IOP
  • removal of foreign bodies and sutures from cornea
  • facilitate eye exam
  • anethesia for surgical procedures
  • temporary pain relief
8
Q

What is the MOA for topical anesthetics?

A

blocks the invitation and conduction of nerve impulses by decreasing the neuronal membranes permeability to sodium, potassium, and other ions which results in inhibition of depolarization with resultant blockade of conduction

  • –blocks sodium and potassium channes
  • -blocks ions at nerve synapses so that the nerve signals are not sent, and there is no depolarization at the nerve terminal
9
Q

Proparacaine (Alcaine)
Class
Onset
Duration

A

class: anesthetic
onset: seconds
duration: 10-20 min

10
Q

What are the side affects of topical anesthetics?

A
  • burning, stinging, irritation
  • hypersensitivity rxn, prolonged use may retard healing
  • -must protect eye from irritants until wears off
  • -NEVER write script –OFFICE only
  • -using these takes away protective corneal reflex and pt may continue to tear up cornea
11
Q

What are the contraindications of topical anesthetics?

A
  • ANY hypersensitivity to anesthetics
  • liver disease
  • dry eye
  • perforating eye injury (will get inside of eye)
  • pt on anticholiesterases = lead to more severe dry eye with numbing med and ALSO if they are drugs to treat alzheimers, glaucoma, and myasthenia gravis pt is more likely to get systemic effect and can actually stop breathing
12
Q

Oxybuprocaine AKA Benoxinate (Novesin, Novesine)
class
onset
duration
REMEBER that benoxinate comes in a combo with fluorescein

A

Class: topical anesthetic

onset: seconds
duration: 10-20 min

13
Q

Tetracain (altacaine, Tetcaine, TetraVisc)
Class
onset
duration

A

class: topical anesthetic
onset: seconds
duration: 30 MIN = LONGER duration than benoxinate and proparacaine