sedation expiry

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S.M.A.R.T. Dental Nursing Sedation

Day 3

IV Sedation - Recovery & Complications

Also see chapter Advanced Dental Nursing

Mr J. Henry

Recovery

Allow patient to recover in a quiet environment.

Patient must be under observation until fully recovered.

Recovery area should be equipped to an appropriate standard.

BP recorded

Discharge

At least I hour should have elapsed since the last increment drug was administered

Venous cannula left in situ until patient ready for discharge

Must be able to stand and walk without assistance

Discharged into the care of their escort

Both patient and escort should be given verbal and written post-operative instructions

Negative EVE test Accurately touch tip of nose with index finger

Rhomberg’s test Patient able to stand with eyes closed without undue swaying

Cannula removed with pressure over site to prevent haematoma

1

Complications related to venepuncture

Extravascular Injection

Intra-arterial Injection

Haematoma

Pain of Cannulation

Ru le of P’s ( perfect preparation + positioning avoids piss poor performance!)

Complications related to Drug Administration

Check the drug for date expiry.

Always label the syringe as soon as you have drawn up the drug.

( Colourless liquids look the same in a syringe.)

Dispose of unused drugs in the approved manner.

Abnormal Responses

Hyper-response

Rapid sedation 1 - 2 mg.

Beware the elderly patient

Interaction with Alcohol & CNS depressants

Rare in younger patients

Emphasizes need for careful titration

Over

– Sedation

Misjudgment of patient dose

Too rapid administration

Failure to interpret patients signs

 Verril’s sign - too deep ( if using midazolam )

Failure of communication - learning difficulty

Respiratory Depression occurs first

Loss of Consciousness

Management of Over – Sedation

Monitor patient and readings

Maintain communication

Mild - encourage deep breathing

More severe - Supplemental oxygen

2

Look for signs of obstruction and correct

Reversal with Flumazenil

Monitor patient for re-sedation

Hypo-response

Higher than normal dose with little effect

High tolerance for benzodiaepines

Check cannula in blood stream

Normal maximum 7.5mg

No more than 2 ampoules - 20mg

Requires GA

Rapid Recovery

After 10 - 15 minutes becoming restless

Normally 30 - 40 minutes of time

Top up using 1 - 2 mg at a time

Maximum total dose - 2 ampoules

Paradoxical Reactions

Disinhibition - Talkative or Weepy

Sedate normally but become very distressed with treatment.

Needle phobic in the mouth

Hyper-reaction to the noise of the drill

Must distinguish from a poor LA

Requires GA.

Other side effects

Hiccups

May persist for up to 30 minutes. Appears to be associated with excessive or too rapid injection.

Sexual Fantasy

Ensure that no sedated ( or recovering ) patient is left alone with only one member of the dental team

3

Does sedation fail ? Why does it fail ?

Incorrect assessment

Unrealistic expectations

Anxyolsis is not oblivion

Missing the window

Poor LA

Treatment plan not appropriate

 ‘ Bad sedation ’ day patient or dentist out of sorts that day

patient kept waiting pre-op

Managing failure

Be aware - quit whilst ahead

Be flexible - consider alternative sedation techniques

Be positive, be honest to patients

Refer for GA or to Specialist Sedation Clinic

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