N170 Eye, Ear + Nose Instillations Flashcards
Eye, ear + nose instillations are considered forms of _____ medications.
Topical
When are topical meds more likely to have systemic effect?
- Skin is thin
- Drug [ ] is high
- Contact with skin is prolonged
- Drug is applied to skin that is not intact
Topical administration is admin to? (3)
- Skin
- Mucous membranes
- Tissues
Apply topical meds with ___ to avoid accidental exposure to the drug?
Gloves
Should you apply a med to an area that already has a topical med applied?
No, will block therapeutic effect
** Always skin thoroughly of encrustations or other meds prior to new application
Should sterile or clean gloves be used for applying topical meds?
Sterile if skin is broken
How to apply topical meds:
- Rub med between hands to soften
- Spread evenly over skin surface using long, even strokes that follow direction of hair growth
Steps for applying nitroglycerine ointment:
- Remove previous dose paper, fold sides with residual med together + dispose of in biohazard bag
- Wide off residual med with tissue
- Write date, time, and initials on new application paper
- Apply desired number of inches of ointment to paper-measuring guide (or use unit-dose)
- Choose site (rotate) - clean, dry, free of hair
- Apply + secure ointment + paper with transparent dressing or tape (or patch)
Possible application site for nitro patch?
Chest, back, abdomen, or anterior thigh
**Not on hairy surfaces or over scar tissue
Do nitro sites needs to be rotated?
How long should there be between application of nitro patch to same site?
Should you rub or massage nitro ointment into the skin?
Yes
At least a week
No
Intraocular disk =
- What is it?
- How long can it be in place for?
Way of med delivery that resembles cataract lens
- Disc placed in conjunctival sac (not over cornea)
- Remains in place for up to 1 week
Why is conjunctival sac more appropriate for med admin than the cornea?
Cornea is extremely sensitive (lots of nerve fibers)
- Care must be taken not to administer meds to the cornea
What temp should ear drops be?
Room temp - inner ear structures VERY sensitive and cold will cause vertigo, nausea, etc.
Procedure for eye drops
1) Pt supine or sitting with neck hyperextended
2) Apply gloves to clean crusties away with warm water + cloth (if any), then remove gloves + hand hygiene
3) Apply clean gloves, hold clean tissue on pt cheekbone below eye
4) Press down on bony orbit to expose conjunctival sac
5) have pt look up, place dominant hand on forehead with dropper 1-2cm above conjunctival sac
6) Drop into conjunctival sac
7) Ask pt to close eyes
3 safety precautions for ear drops:
1) Room temp drops
2) Do not administer with force or occlude canal b/c risk of damage to ear drum
3) Use sterile solution in case ear drum is ruptured