Nitrous Oxide Flashcards

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1
Q

Nitrous Oxide

Class

A
  • Gaseous analgesic & anesthetic
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2
Q

Nitrous Oxide

Mechanism of action

A
  • Affects CNS phospholipids
  • Exact mechanism unknown
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3
Q

Nitrous Oxide

Indications

A
  • Treat moderate to severe pain
  • Anxiety & apprehension
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4
Q

Nitrous Oxide

Contraindications

A
  • AMS
  • Head injury
  • Decompression sickness
  • Undiagnosed ABD pain
  • Shock
  • Hypotension
  • Chest trauma with pneumothorax
  • Cyanosis
  • COPD with hx of CO2 retention
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5
Q

Nitrous Oxide

Adverse reactions

A
  • Dizziness
  • Apnea
  • Expansion of gas pockets
  • Malignant hyperthermia
  • Drowsiness & Euphoria
  • N/V
  • Cyanosis
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6
Q

Nitrous Oxide

Drug interactions

A
  • None
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7
Q

Nitrous Oxide

Dosage and administration

A

Adult and Ped:

  • Instruct pt to inhale deeply
  • Invert cylinder several times before use
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8
Q

Duration of action

A
  • Onset: 2-5 min
  • Peak effect: Variable
  • Duration: 2-5 min
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9
Q

Nitrous Oxide

Special considerations

A
  • Preg Cat: C
  • Increased risk of spontaneous abortion
  • Ventilate pt during use
  • Gas is not flammable or explosive
  • Ineffective in 20% of population
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